داده ها را به Cloud Firestore اضافه کنید

این سند نحوه تنظیم، افزودن یا به‌روزرسانی اسناد فردی را در Cloud Firestore توضیح می‌دهد. برای نوشتن داده ها به صورت انبوه، به تراکنش ها و نوشته های دسته ای مراجعه کنید.

نمای کلی

می توانید داده ها را به یکی از روش های زیر در Cloud Firestore بنویسید:

  • داده های یک سند را در یک مجموعه تنظیم کنید و به صراحت یک شناسه سند را مشخص کنید.
  • یک سند جدید به مجموعه اضافه کنید. در این حالت، Cloud Firestore به طور خودکار شناسه سند را تولید می کند.
  • یک سند خالی با شناسه ای که به طور خودکار تولید می شود ایجاد کنید و بعداً داده ها را به آن اختصاص دهید.

قبل از شروع

قبل از اینکه بتوانید Cloud Firestore برای تنظیم، افزودن یا به‌روزرسانی داده‌ها مقداردهی کنید، باید مراحل زیر را انجام دهید:

Cloud Firestore را راه اندازی کنید

نمونه ای از Cloud Firestore را راه اندازی کنید:

import { initializeApp } from "firebase/app";
import { getFirestore } from "firebase/firestore";

// TODO: Replace the following with your app's Firebase project configuration
// See: https://support.google.com/firebase/answer/7015592
const firebaseConfig = {
    FIREBASE_CONFIGURATION
};

// Initialize Firebase
const app = initializeApp(firebaseConfig);


// Initialize Cloud Firestore and get a reference to the service
const db = getFirestore(app);

firebaseConfig برنامه وب خود را جایگزین FIREBASE_CONFIGURATION کنید.

برای تداوم داده‌ها وقتی دستگاه اتصال خود را قطع می‌کند، به مستندات Enable Data Offline مراجعه کنید.

import firebase from "firebase/app";
import "firebase/firestore";

// TODO: Replace the following with your app's Firebase project configuration
// See: https://support.google.com/firebase/answer/7015592
const firebaseConfig = {
    FIREBASE_CONFIGURATION
};

// Initialize Firebase
firebase.initializeApp(firebaseConfig);


// Initialize Cloud Firestore and get a reference to the service
const db = firebase.firestore();

firebaseConfig برنامه وب خود را جایگزین FIREBASE_CONFIGURATION کنید.

برای تداوم داده‌ها وقتی دستگاه اتصال خود را قطع می‌کند، به مستندات Enable Data Offline مراجعه کنید.

توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
import FirebaseCore
import FirebaseFirestore
FirebaseApp.configure()

let db = Firestore.firestore()
توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
@import FirebaseCore;
@import FirebaseFirestore;

// Use Firebase library to configure APIs
[FIRApp configure];
  
FIRFirestore *defaultFirestore = [FIRFirestore firestore];
// Access a Cloud Firestore instance from your Activity
val db = Firebase.firestore
// Access a Cloud Firestore instance from your Activity
FirebaseFirestore db = FirebaseFirestore.getInstance();
db = FirebaseFirestore.instance;
بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use the application default credentials
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault();
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .setProjectId(projectId)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use a service account
    InputStream serviceAccount = new FileInputStream("path/to/serviceAccount.json");
    GoogleCredentials credentials = GoogleCredentials.fromStream(serviceAccount);
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import firebase_admin
    from firebase_admin import firestore
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore.client()

    یک اعتبار پیش فرض برنامه موجود نیز می تواند برای مقداردهی اولیه SDK استفاده شود.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore.client()
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore.client()
  • بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import firebase_admin
    from firebase_admin import firestore_async
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore_async.client()

    یک اعتبار پیش فرض برنامه موجود نیز می تواند برای مقداردهی اولیه SDK استفاده شود.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore_async.client()
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore_async.client()
  • // Make sure the call to `Create()` happens some time before you call Firestore::GetInstance().
    App::Create();
    Firestore* db = Firestore::GetInstance();
    بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
    • در Cloud Functions راه اندازی کنید
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp();
      
      const db = getFirestore();
      
    • در Google Cloud راه اندازی کنید
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp({
        credential: applicationDefault()
      });
      
      const db = getFirestore();
    • بر روی سرور خود راه اندازی کنید

      برای استفاده از Firebase Admin SDK در سرور خود (یا هر محیط دیگر Node.js)، از یک حساب سرویس استفاده کنید. به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      const serviceAccount = require('./path/to/serviceAccountKey.json');
      
      initializeApp({
        credential: cert(serviceAccount)
      });
      
      const db = getFirestore();
      
    بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use the application default credentials
    ctx := context.Background()
    conf := &firebase.Config{ProjectID: projectID}
    app, err := firebase.NewApp(ctx, conf)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use a service account
    ctx := context.Background()
    sa := option.WithCredentialsFile("path/to/serviceAccount.json")
    app, err := firebase.NewApp(ctx, nil, sa)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    use Google\Cloud\Firestore\FirestoreClient;
    
    /**
     * Initialize Cloud Firestore with default project ID.
     */
    function setup_client_create(string $projectId = null)
    {
        // Create the Cloud Firestore client
        if (empty($projectId)) {
            // The `projectId` parameter is optional and represents which project the
            // client will act on behalf of. If not supplied, the client falls back to
            // the default project inferred from the environment.
            $db = new FirestoreClient();
            printf('Created Cloud Firestore client with default project ID.' . PHP_EOL);
        } else {
            $db = new FirestoreClient([
                'projectId' => $projectId,
            ]);
            printf('Created Cloud Firestore client with project ID: %s' . PHP_EOL, $projectId);
        }
    }
    using Firebase.Firestore;
    using Firebase.Extensions;
    FirebaseFirestore db = FirebaseFirestore.DefaultInstance;

    سی شارپ

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    FirestoreDb db = FirestoreDb.Create(project);
    Console.WriteLine("Created Cloud Firestore client with project ID: {0}", project);
    require "google/cloud/firestore"
    
    # The `project_id` parameter is optional and represents which project the
    # client will act on behalf of. If not supplied, the client falls back to the
    # default project inferred from the environment.
    firestore = Google::Cloud::Firestore.new project_id: project_id
    
    puts "Created Cloud Firestore client with given project ID."

    یک سند تنظیم کنید

    برای ایجاد یا بازنویسی یک سند واحد، از متدهای set() مخصوص زبان زیر استفاده کنید:

    از متد setDoc() استفاده کنید:

    import { doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document in collection "cities"
    await setDoc(doc(db, "cities", "LA"), {
      name: "Los Angeles",
      state: "CA",
      country: "USA"
    });

    از متد set() استفاده کنید:

    // Add a new document in collection "cities"
    db.collection("cities").doc("LA").set({
        name: "Los Angeles",
        state: "CA",
        country: "USA"
    })
    .then(() => {
        console.log("Document successfully written!");
    })
    .catch((error) => {
        console.error("Error writing document: ", error);
    });

    از متد setData() استفاده کنید:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Add a new document in collection "cities"
    do {
      try await db.collection("cities").document("LA").setData([
        "name": "Los Angeles",
        "state": "CA",
        "country": "USA"
      ])
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }

    از متد setData: استفاده کنید:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Add a new document in collection "cities"
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"LA"] setData:@{
      @"name": @"Los Angeles",
      @"state": @"CA",
      @"country": @"USA"
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error writing document: %@", error);
      } else {
        NSLog(@"Document successfully written!");
      }
    }];

    از متد set() استفاده کنید:

    val city = hashMapOf(
        "name" to "Los Angeles",
        "state" to "CA",
        "country" to "USA",
    )
    
    db.collection("cities").document("LA")
        .set(city)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }

    از متد set() استفاده کنید:

    Map<String, Object> city = new HashMap<>();
    city.put("name", "Los Angeles");
    city.put("state", "CA");
    city.put("country", "USA");
    
    db.collection("cities").document("LA")
            .set(city)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });

    از متد set() استفاده کنید:

    final city = <String, String>{
      "name": "Los Angeles",
      "state": "CA",
      "country": "USA"
    };
    
    db
        .collection("cities")
        .doc("LA")
        .set(city)
        .onError((e, _) => print("Error writing document: $e"));

    از متد set() استفاده کنید:

    // Create a Map to store the data we want to set
    Map<String, Object> docData = new HashMap<>();
    docData.put("name", "Los Angeles");
    docData.put("state", "CA");
    docData.put("country", "USA");
    docData.put("regions", Arrays.asList("west_coast", "socal"));
    // Add a new document (asynchronously) in collection "cities" with id "LA"
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(docData);
    // ...
    // future.get() blocks on response
    System.out.println("Update time : " + future.get().getUpdateTime());

    از متد set() استفاده کنید:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    db.collection("cities").document("LA").set(data)

    از متد set() استفاده کنید:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    await db.collection("cities").document("LA").set(data)

    از متد Set() استفاده کنید:

    // Add a new document in collection 'cities'
    db->Collection("cities")
        .Document("LA")
        .Set({{"name", FieldValue::String("Los Angeles")},
              {"state", FieldValue::String("CA")},
              {"country", FieldValue::String("USA")}})
        .OnCompletion([](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });

    از متد set() استفاده کنید:

    const data = {
      name: 'Los Angeles',
      state: 'CA',
      country: 'USA'
    };
    
    // Add a new document in collection "cities" with ID 'LA'
    const res = await db.collection('cities').doc('LA').set(data);

    از متد Set() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsMap(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, map[string]interface{}{
    		"name":    "Los Angeles",
    		"state":   "CA",
    		"country": "USA",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از متد set() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $data = [
        'name' => 'Los Angeles',
        'state' => 'CA',
        'country' => 'USA'
    ];
    $db->collection('samples/php/cities')->document('LA')->set($data);

    از متد SetAsync() استفاده کنید:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Los Angeles" },
    	{ "State", "CA" },
    	{ "Country", "USA" }
    };
    docRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log("Added data to the LA document in the cities collection.");
    });

    از متد SetAsync() استفاده کنید:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "name", "Los Angeles" },
        { "state", "CA" },
        { "country", "USA" }
    };
    await docRef.SetAsync(city);

    از متد set() استفاده کنید:

    city_ref = firestore.doc "#{collection_path}/LA"
    
    data = {
      name:    "Los Angeles",
      state:   "CA",
      country: "USA"
    }
    
    city_ref.set data

    اگر سند وجود نداشته باشد، ایجاد می شود. اگر سند وجود داشته باشد، محتویات آن با داده‌های ارائه‌شده جدید رونویسی می‌شود، مگر اینکه مشخص کنید که داده‌ها باید در سند موجود ادغام شوند، به شرح زیر:

    import { doc, setDoc } from "firebase/firestore"; 
    
    const cityRef = doc(db, 'cities', 'BJ');
    setDoc(cityRef, { capital: true }, { merge: true });
    var cityRef = db.collection('cities').doc('BJ');
    
    var setWithMerge = cityRef.set({
        capital: true
    }, { merge: true });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Update one field, creating the document if it does not exist.
    db.collection("cities").document("BJ").setData([ "capital": true ], merge: true)
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Write to the document reference, merging data with existing
    // if the document already exists
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"BJ"]
         setData:@{ @"capital": @YES }
         merge:YES
         completion:^(NSError * _Nullable error) {
           // ...
         }];
    // Update one field, creating the document if it does not already exist.
    val data = hashMapOf("capital" to true)
    
    db.collection("cities").document("BJ")
        .set(data, SetOptions.merge())
    // Update one field, creating the document if it does not already exist.
    Map<String, Object> data = new HashMap<>();
    data.put("capital", true);
    
    db.collection("cities").document("BJ")
            .set(data, SetOptions.merge());
    // Update one field, creating the document if it does not already exist.
    final data = {"capital": true};
    
    db.collection("cities").doc("BJ").set(data, SetOptions(merge: true));
    // asynchronously update doc, create the document if missing
    Map<String, Object> update = new HashMap<>();
    update.put("capital", true);
    
    ApiFuture<WriteResult> writeResult =
        db.collection("cities").document("BJ").set(update, SetOptions.merge());
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    city_ref = db.collection("cities").document("BJ")
    
    city_ref.set({"capital": True}, merge=True)
    city_ref = db.collection("cities").document("BJ")
    
    await city_ref.set({"capital": True}, merge=True)
    db->Collection("cities").Document("BJ").Set(
        {{"capital", FieldValue::Boolean(true)}}, SetOptions::Merge());
    const cityRef = db.collection('cities').doc('BJ');
    
    const res = await cityRef.set({
      capital: true
    }, { merge: true });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocCreateIfMissing(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("BJ").Set(ctx, map[string]interface{}{
    		"capital": true,
    	}, firestore.MergeAll)
    
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('BJ');
    $cityRef->set([
        'capital' => true
    ], ['merge' => true]);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
    	{ "capital", false }
    };
    docRef.SetAsync(update, SetOptions.MergeAll);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
        { "capital", false }
    };
    await docRef.SetAsync(update, SetOptions.MergeAll);
    city_ref = firestore.doc "#{collection_path}/LA"
    city_ref.set({ capital: false }, merge: true)

    اگر مطمئن نیستید که سند وجود دارد یا خیر، گزینه ادغام داده های جدید با هر سند موجود را برای جلوگیری از رونویسی کل اسناد عبور دهید. برای اسنادی که حاوی نقشه هستند، اگر مجموعه ای را با یک فیلد مشخص کنید که حاوی یک نقشه خالی است، فیلد نقشه سند مورد نظر بازنویسی می شود.

    انواع داده ها

    Cloud Firestore به شما امکان می دهد انواع داده ها را در داخل یک سند بنویسید، از جمله رشته ها، بولی ها، اعداد، تاریخ ها، آرایه ها و اشیاء تهی و تودرتو. Cloud Firestore همیشه اعداد را به صورت دو برابر ذخیره می کند، صرف نظر از اینکه از چه نوع عددی در کد خود استفاده می کنید.

    import { doc, setDoc, Timestamp } from "firebase/firestore"; 
    
    const docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    await setDoc(doc(db, "data", "one"), docData);
    var docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: firebase.firestore.Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    db.collection("data").doc("one").set(docData).then(() => {
        console.log("Document successfully written!");
    });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    let docData: [String: Any] = [
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp(date: Date()),
      "arrayExample": [5, true, "hello"],
      "nullExample": NSNull(),
      "objectExample": [
        "a": 5,
        "b": [
          "nested": "foo"
        ]
      ]
    ]
    do {
      try await db.collection("data").document("one").setData(docData)
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    NSDictionary *docData = @{
      @"stringExample": @"Hello world!",
      @"booleanExample": @YES,
      @"numberExample": @3.14,
      @"dateExample": [FIRTimestamp timestampWithDate:[NSDate date]],
      @"arrayExample": @[@5, @YES, @"hello"],
      @"nullExample": [NSNull null],
      @"objectExample": @{
        @"a": @5,
        @"b": @{
          @"nested": @"foo"
        }
      }
    };
    
    [[[self.db collectionWithPath:@"data"] documentWithPath:@"one"] setData:docData
        completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error writing document: %@", error);
          } else {
            NSLog(@"Document successfully written!");
          }
        }];
    val docData = hashMapOf(
        "stringExample" to "Hello world!",
        "booleanExample" to true,
        "numberExample" to 3.14159265,
        "dateExample" to Timestamp(Date()),
        "listExample" to arrayListOf(1, 2, 3),
        "nullExample" to null,
    )
    
    val nestedData = hashMapOf(
        "a" to 5,
        "b" to true,
    )
    
    docData["objectExample"] = nestedData
    
    db.collection("data").document("one")
        .set(docData)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello world!");
    docData.put("booleanExample", true);
    docData.put("numberExample", 3.14159265);
    docData.put("dateExample", new Timestamp(new Date()));
    docData.put("listExample", Arrays.asList(1, 2, 3));
    docData.put("nullExample", null);
    
    Map<String, Object> nestedData = new HashMap<>();
    nestedData.put("a", 5);
    nestedData.put("b", true);
    
    docData.put("objectExample", nestedData);
    
    db.collection("data").document("one")
            .set(docData)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });
    final docData = {
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp.now(),
      "listExample": [1, 2, 3],
      "nullExample": null
    };
    
    final nestedData = {
      "a": 5,
      "b": true,
    };
    
    docData["objectExample"] = nestedData;
    
    db
        .collection("data")
        .doc("one")
        .set(docData)
        .onError((e, _) => print("Error writing document: $e"));
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello, World");
    docData.put("booleanExample", false);
    docData.put("numberExample", 3.14159265);
    docData.put("nullExample", null);
    
    ArrayList<Object> arrayExample = new ArrayList<>();
    Collections.addAll(arrayExample, 5L, true, "hello");
    docData.put("arrayExample", arrayExample);
    
    Map<String, Object> objectExample = new HashMap<>();
    objectExample.put("a", 5L);
    objectExample.put("b", true);
    
    docData.put("objectExample", objectExample);
    
    ApiFuture<WriteResult> future = db.collection("data").document("one").set(docData);
    System.out.println("Update time : " + future.get().getUpdateTime());
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    db.collection("data").document("one").set(data)
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    await db.collection("data").document("one").set(data)
    MapFieldValue doc_data{
        {"stringExample", FieldValue::String("Hello world!")},
        {"booleanExample", FieldValue::Boolean(true)},
        {"numberExample", FieldValue::Double(3.14159265)},
        {"dateExample", FieldValue::Timestamp(Timestamp::Now())},
        {"arrayExample", FieldValue::Array({FieldValue::Integer(1),
                                            FieldValue::Integer(2),
                                            FieldValue::Integer(3)})},
        {"nullExample", FieldValue::Null()},
        {"objectExample",
         FieldValue::Map(
             {{"a", FieldValue::Integer(5)},
              {"b", FieldValue::Map(
                        {{"nested", FieldValue::String("foo")}})}})},
    };
    
    db->Collection("data").Document("one").Set(doc_data).OnCompletion(
        [](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });
    const data = {
      stringExample: 'Hello, World!',
      booleanExample: true,
      numberExample: 3.14159265,
      dateExample: Timestamp.fromDate(new Date('December 10, 1815')),
      arrayExample: [5, true, 'hello'],
      nullExample: null,
      objectExample: {
        a: 5,
        b: true
      }
    };
    
    const res = await db.collection('data').doc('one').set(data);
    
    import (
    	"context"
    	"log"
    	"time"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocDataTypes(ctx context.Context, client *firestore.Client) error {
    	doc := make(map[string]interface{})
    	doc["stringExample"] = "Hello world!"
    	doc["booleanExample"] = true
    	doc["numberExample"] = 3.14159265
    	doc["dateExample"] = time.Now()
    	doc["arrayExample"] = []interface{}{5, true, "hello"}
    	doc["nullExample"] = nil
    	doc["objectExample"] = map[string]interface{}{
    		"a": 5,
    		"b": true,
    	}
    
    	_, err := client.Collection("data").Doc("one").Set(ctx, doc)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $data = [
        'stringExample' => 'Hello World',
        'booleanExample' => true,
        'numberExample' => 3.14159265,
        'dateExample' => new Timestamp(new DateTime()),
        'arrayExample' => array(5, true, 'hello'),
        'nullExample' => null,
        'objectExample' => ['a' => 5, 'b' => true],
        'documentReferenceExample' => $db->collection('samples/php/data')->document('two'),
    ];
    $db->collection('samples/php/data')->document('one')->set($data);
    printf('Set multiple data-type data for the one document in the data collection.' . PHP_EOL);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
    	{ "stringExample", "Hello World" },
    	{ "booleanExample", false },
    	{ "numberExample", 3.14159265 },
    	{ "nullExample", null },
    	{ "arrayExample", new List<object>() { 5, true, "Hello" } },
    	{ "objectExample", new Dictionary<string, object>
    		{
    			{ "a", 5 },
    			{ "b", true },
    		}
    	},
    };
    
    docRef.SetAsync(docData);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
        { "stringExample", "Hello World" },
        { "booleanExample", false },
        { "numberExample", 3.14159265 },
        { "nullExample", null },
        { "arrayExample", new object[] { 5, true, "Hello" } },
        { "objectExample", new Dictionary<string, object>
            {
                { "a", 5 },
                { "b", true},
            }
        }
    };
    
    await docRef.SetAsync(docData);
    doc_ref = firestore.doc "#{collection_path}/one"
    
    data = {
      stringExample:  "Hello, World!",
      booleanExample: true,
      numberExample:  3.14159265,
      dateExample:    DateTime.now,
      arrayExample:   [5, true, "hello"],
      nullExample:    nil,
      objectExample:  {
        a: 5,
        b: true
      }
    }
    
    doc_ref.set data

    اشیاء سفارشی

    استفاده از اشیاء Map یا Dictionary برای نشان دادن اسناد شما اغلب ناخوشایند است، بنابراین Cloud Firestore از نوشتن اسناد با کلاس های سفارشی پشتیبانی می کند. Cloud Firestore اشیاء را به انواع داده های پشتیبانی شده تبدیل می کند.

    با استفاده از کلاس های سفارشی، می توانید مثال اولیه را به روش زیر بازنویسی کنید:

    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    const cityConverter = {
        toFirestore: (city) => {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: (snapshot, options) => {
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    var cityConverter = {
        toFirestore: function(city) {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: function(snapshot, options){
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    public struct City: Codable {
    
      let name: String
      let state: String?
      let country: String?
      let isCapital: Bool?
      let population: Int64?
    
      enum CodingKeys: String, CodingKey {
        case name
        case state
        case country
        case isCapital = "capital"
        case population
      }
    
    }
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // This isn't supported in Objective-C.
      
    data class City(
        val name: String? = null,
        val state: String? = null,
        val country: String? = null,
        @field:JvmField // use this annotation if your Boolean field is prefixed with 'is'
        val isCapital: Boolean? = null,
        val population: Long? = null,
        val regions: List<String>? = null,
    )

    هر کلاس سفارشی باید یک سازنده عمومی داشته باشد که هیچ آرگومانی دریافت نکند. علاوه بر این، کلاس باید شامل یک گیرنده عمومی برای هر ویژگی باشد.

    public class City {
    
    
        private String name;
        private String state;
        private String country;
        private boolean capital;
        private long population;
        private List<String> regions;
    
        public City() {}
    
        public City(String name, String state, String country, boolean capital, long population, List<String> regions) {
            // ...
        }
    
        public String getName() {
            return name;
        }
    
        public String getState() {
            return state;
        }
    
        public String getCountry() {
            return country;
        }
    
        public boolean isCapital() {
            return capital;
        }
    
        public long getPopulation() {
            return population;
        }
    
        public List<String> getRegions() {
            return regions;
        }
    
    }
    class City {
      final String? name;
      final String? state;
      final String? country;
      final bool? capital;
      final int? population;
      final List<String>? regions;
    
      City({
        this.name,
        this.state,
        this.country,
        this.capital,
        this.population,
        this.regions,
      });
    
      factory City.fromFirestore(
        DocumentSnapshot<Map<String, dynamic>> snapshot,
        SnapshotOptions? options,
      ) {
        final data = snapshot.data();
        return City(
          name: data?['name'],
          state: data?['state'],
          country: data?['country'],
          capital: data?['capital'],
          population: data?['population'],
          regions:
              data?['regions'] is Iterable ? List.from(data?['regions']) : null,
        );
      }
    
      Map<String, dynamic> toFirestore() {
        return {
          if (name != null) "name": name,
          if (state != null) "state": state,
          if (country != null) "country": country,
          if (capital != null) "capital": capital,
          if (population != null) "population": population,
          if (regions != null) "regions": regions,
        };
      }
    }
    public City() {
      // Must have a public no-argument constructor
    }
    
    // Initialize all fields of a city
    public City(
        String name,
        String state,
        String country,
        Boolean capital,
        Long population,
        List<String> regions) {
      this.name = name;
      this.state = state;
      this.country = country;
      this.capital = capital;
      this.population = population;
      this.regions = regions;
    }
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    // City represents a city.
    type City struct {
    	Name       string   `firestore:"name,omitempty"`
    	State      string   `firestore:"state,omitempty"`
    	Country    string   `firestore:"country,omitempty"`
    	Capital    bool     `firestore:"capital,omitempty"`
    	Population int64    `firestore:"population,omitempty"`
    	Density    int64    `firestore:"density,omitempty"`
    	Regions    []string `firestore:"regions,omitempty"`
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    class City
    {
        /** @var string */
        public $name;
        /** @var string */
        public $state;
        /** @var string */
        public $country;
        /** @var bool */
        public $capital;
        /** @var int */
        public $population;
        /** @var array<string> */
        public $regions;
    
        /**
         * @param array<string> $regions
         */
        public function __construct(
            string $name,
            string $state,
            string $country,
            bool $capital = false,
            int $population = 0,
            array $regions = []
        ) {
            $this->name = $name;
            $this->state = $state;
            $this->country = $country;
            $this->capital = $capital;
            $this->population = $population;
            $this->regions = $regions;
        }
    
        /**
         * @param array<mixed> $source
         */
        public static function fromArray(array $source): City
        {
            // implementation of fromArray is excluded for brevity
            # ...
        }
    
        /**
         * @return array<mixed>
         */
        public function toArray(): array
        {
            // implementation of toArray is excluded for brevity
            # ...
        }
    
        public function __toString()
        {
            // implementation of __toString is excluded for brevity
            # ...
        }
    }
    
    [FirestoreData]
    public class City
    {
    	[FirestoreProperty]
    	public string Name { get; set; }
    
    	[FirestoreProperty]
    	public string State { get; set; }
    
    	[FirestoreProperty]
    	public string Country { get; set; }
    
    	[FirestoreProperty]
    	public bool Capital { get; set; }
    
    	[FirestoreProperty]
    	public long Population { get; set; }
    }
    [FirestoreData]
    public class City
    {
        [FirestoreProperty]
        public string Name { get; set; }
    
        [FirestoreProperty]
        public string State { get; set; }
    
        [FirestoreProperty]
        public string Country { get; set; }
    
        [FirestoreProperty]
        public bool Capital { get; set; }
    
        [FirestoreProperty]
        public long Population { get; set; }
    }
    // This isn't supported in Ruby
    import { doc, setDoc } from "firebase/firestore"; 
    
    // Set with cityConverter
    const ref = doc(db, "cities", "LA").withConverter(cityConverter);
    await setDoc(ref, new City("Los Angeles", "CA", "USA"));
    // Set with cityConverter
    db.collection("cities").doc("LA")
      .withConverter(cityConverter)
      .set(new City("Los Angeles", "CA", "USA"));
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    let city = City(name: "Los Angeles",
                    state: "CA",
                    country: "USA",
                    isCapital: false,
                    population: 5000000)
    
    do {
      try db.collection("cities").document("LA").setData(from: city)
    } catch let error {
      print("Error writing city to Firestore: \(error)")
    }
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // This isn't supported in Objective-C.
      
    val city = City(
        "Los Angeles",
        "CA",
        "USA",
        false,
        5000000L,
        listOf("west_coast", "socal"),
    )
    db.collection("cities").document("LA").set(city)
    City city = new City("Los Angeles", "CA", "USA",
            false, 5000000L, Arrays.asList("west_coast", "sorcal"));
    db.collection("cities").document("LA").set(city);
    final city = City(
      name: "Los Angeles",
      state: "CA",
      country: "USA",
      capital: false,
      population: 5000000,
      regions: ["west_coast", "socal"],
    );
    final docRef = db
        .collection("cities")
        .withConverter(
          fromFirestore: City.fromFirestore,
          toFirestore: (City city, options) => city.toFirestore(),
        )
        .doc("LA");
    await docRef.set(city);
    City city =
        new City("Los Angeles", "CA", "USA", false, 3900000L, Arrays.asList("west_coast", "socal"));
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(city);
    // block on response if required
    System.out.println("Update time : " + future.get().getUpdateTime());
    city = City(name="Los Angeles", state="CA", country="USA")
    db.collection("cities").document("LA").set(city.to_dict())
    city = City(name="Los Angeles", state="CA", country="USA")
    await db.collection("cities").document("LA").set(city.to_dict())
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsEntity(ctx context.Context, client *firestore.Client) error {
    	city := City{
    		Name:    "Los Angeles",
    		Country: "USA",
    	}
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, city)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    
    // This isn't supported in PHP.
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
    	Name = "Los Angeles",
    	State = "CA",
    	Country = "USA",
    	Capital = false,
    	Population = 3900000L
    };
    docRef.SetAsync(city);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
        Name = "Los Angeles",
        State = "CA",
        Country = "USA",
        Capital = false,
        Population = 3900000L
    };
    await docRef.SetAsync(city);
    // This isn't supported in Ruby.

    یک سند اضافه کنید

    هنگامی که از set() برای ایجاد یک سند استفاده می کنید، باید یک شناسه برای ایجاد سند مشخص کنید، همانطور که در مثال زیر نشان داده شده است:

    import { doc, setDoc } from "firebase/firestore"; 
    
    await setDoc(doc(db, "cities", "new-city-id"), data);
    db.collection("cities").doc("new-city-id").set(data);
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    db.collection("cities").document("new-city-id").setData(data)
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"new-city-id"]
        setData:data];
    db.collection("cities").document("new-city-id").set(data)
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").doc("new-city-id").set({"name": "Chicago"});
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").document("new-city-id").set(data)
    await db.collection("cities").document("new-city-id").set(data)
    db->Collection("cities").Document("SF").Set({/*some data*/});
    await db.collection('cities').doc('new-city-id').set(data);
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithID(ctx context.Context, client *firestore.Client) error {
    	var data = make(map[string]interface{})
    
    	_, err := client.Collection("cities").Doc("new-city-id").Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $db->collection('samples/php/cities')->document('new-city-id')->set($data);
    db.Collection("cities").Document("new-city-id").SetAsync(city);
    await db.Collection("cities").Document("new-city-id").SetAsync(city);
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.set data

    اگر شناسه معنی‌داری برای سند وجود نداشته باشد، Cloud Firestore می‌تواند به‌طور خودکار یک شناسه برای شما ایجاد کند. می توانید متدهای add() مخصوص زبان زیر را فراخوانی کنید:

    از متد addDoc() استفاده کنید:

    import { collection, addDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id.
    const docRef = await addDoc(collection(db, "cities"), {
      name: "Tokyo",
      country: "Japan"
    });
    console.log("Document written with ID: ", docRef.id);

    از متد add() استفاده کنید:

    // Add a new document with a generated id.
    db.collection("cities").add({
        name: "Tokyo",
        country: "Japan"
    })
    .then((docRef) => {
        console.log("Document written with ID: ", docRef.id);
    })
    .catch((error) => {
        console.error("Error adding document: ", error);
    });

    از متد addDocument() استفاده کنید:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Add a new document with a generated id.
    do {
      let ref = try await db.collection("cities").addDocument(data: [
        "name": "Tokyo",
        "country": "Japan"
      ])
      print("Document added with ID: \(ref.documentID)")
    } catch {
      print("Error adding document: \(error)")
    }

    از متد addDocumentWithData:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Add a new document with a generated id.
    __block FIRDocumentReference *ref =
        [[self.db collectionWithPath:@"cities"] addDocumentWithData:@{
          @"name": @"Tokyo",
          @"country": @"Japan"
        } completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error adding document: %@", error);
          } else {
            NSLog(@"Document added with ID: %@", ref.documentID);
          }
        }];

    از متد add() استفاده کنید:

    // Add a new document with a generated id.
    val data = hashMapOf(
        "name" to "Tokyo",
        "country" to "Japan",
    )
    
    db.collection("cities")
        .add(data)
        .addOnSuccessListener { documentReference ->
            Log.d(TAG, "DocumentSnapshot written with ID: ${documentReference.id}")
        }
        .addOnFailureListener { e ->
            Log.w(TAG, "Error adding document", e)
        }

    از متد add() استفاده کنید:

    // Add a new document with a generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    
    db.collection("cities")
            .add(data)
            .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                @Override
                public void onSuccess(DocumentReference documentReference) {
                    Log.d(TAG, "DocumentSnapshot written with ID: " + documentReference.getId());
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error adding document", e);
                }
            });

    از متد add() استفاده کنید:

    // Add a new document with a generated id.
    final data = {"name": "Tokyo", "country": "Japan"};
    
    db.collection("cities").add(data).then((documentSnapshot) =>
        print("Added Data with ID: ${documentSnapshot.id}"));

    از متد add() استفاده کنید:

    // Add document data with auto-generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    ApiFuture<DocumentReference> addedDocRef = db.collection("cities").add(data);
    System.out.println("Added document with ID: " + addedDocRef.get().getId());

    از متد add() استفاده کنید:

    city = {"name": "Tokyo", "country": "Japan"}
    update_time, city_ref = db.collection("cities").add(city)
    print(f"Added document with id {city_ref.id}")

    از متد add() استفاده کنید:

    city = City(name="Tokyo", state=None, country="Japan")
    await db.collection("cities").add(city.to_dict())

    از متد Add() استفاده کنید:

    db->Collection("cities").Add({/*some data*/});

    از متد add() استفاده کنید:

    // Add a new document with a generated id.
    const res = await db.collection('cities').add({
      name: 'Tokyo',
      country: 'Japan'
    });
    
    console.log('Added document with ID: ', res.id);

    از متد Add() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithoutID(ctx context.Context, client *firestore.Client) error {
    	_, _, err := client.Collection("cities").Add(ctx, map[string]interface{}{
    		"name":    "Tokyo",
    		"country": "Japan",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از متد add() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $data = [
        'name' => 'Tokyo',
        'country' => 'Japan'
    ];
    $addedDocRef = $db->collection('samples/php/cities')->add($data);
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());

    از متد AddAsync() استفاده کنید:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Tokyo" },
    	{ "Country", "Japan" }
    };
    db.Collection("cities").AddAsync(city).ContinueWithOnMainThread(task => {
    	DocumentReference addedDocRef = task.Result;
    	Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    });

    از متد AddAsync() استفاده کنید:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "Name", "Tokyo" },
        { "Country", "Japan" }
    };
    DocumentReference addedDocRef = await db.Collection("cities").AddAsync(city);
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);

    از متد add() استفاده کنید:

    data = {
      name:    "Tokyo",
      country: "Japan"
    }
    
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.add data
    puts "Added document with ID: #{added_doc_ref.document_id}."

    در برخی موارد، ایجاد یک مرجع سند با شناسه ای که به طور خودکار تولید می شود، می تواند مفید باشد، سپس بعداً از مرجع استفاده کنید. برای این مورد استفاده، می توانید doc() را به روش زیر فراخوانی کنید:

    import { collection, doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id
    const newCityRef = doc(collection(db, "cities"));
    
    // later...
    await setDoc(newCityRef, data);
    // Add a new document with a generated id.
    var newCityRef = db.collection("cities").doc();
    
    // later...
    newCityRef.set(data);
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    let newCityRef = db.collection("cities").document()
    
    // later...
    newCityRef.setData([
      // ...
    ])
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    FIRDocumentReference *newCityRef = [[self.db collectionWithPath:@"cities"] documentWithAutoID];
    // later...
    [newCityRef setData:@{ /* ... */ }];
    val data = HashMap<String, Any>()
    
    val newCityRef = db.collection("cities").document()
    
    // Later...
    newCityRef.set(data)
    Map<String, Object> data = new HashMap<>();
    
    DocumentReference newCityRef = db.collection("cities").document();
    
    // Later...
    newCityRef.set(data);
    // Add a new document with a generated id.
    final data = <String, dynamic>{};
    
    final newCityRef = db.collection("cities").doc();
    
    // Later...
    newCityRef.set(data);
    
    // Add document data after generating an id.
    DocumentReference addedDocRef = db.collection("cities").document();
    System.out.println("Added document with ID: " + addedDocRef.getId());
    
    // later...
    ApiFuture<WriteResult> writeResult = addedDocRef.set(data);
    new_city_ref = db.collection("cities").document()
    
    # later...
    new_city_ref.set(
        {
            # ...
        }
    )
    new_city_ref = db.collection("cities").document()
    
    # later...
    await new_city_ref.set(
        {
            # ...
        }
    )
    DocumentReference new_city_ref = db->Collection("cities").Document();
    const newCityRef = db.collection('cities').doc();
    
    // Later...
    const res = await newCityRef.set({
      // ...
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAfterAutoGeneratedID(ctx context.Context, client *firestore.Client) error {
    	data := City{
    		Name:    "Sydney",
    		Country: "Australia",
    	}
    
    	ref := client.Collection("cities").NewDoc()
    
    	// later...
    	_, err := ref.Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $addedDocRef = $db->collection('samples/php/cities')->newDocument();
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());
    $addedDocRef->set($data);
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    addedDocRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log(String.Format(
    		"Added data to the {0} document in the cities collection.", addedDocRef.Id));
    });
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);
    await addedDocRef.SetAsync(city);
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.doc
    puts "Added document with ID: #{added_doc_ref.document_id}."
    
    added_doc_ref.set data

    در backend، .add(...) و .doc().set(...) معادل هستند، بنابراین می توانید از هر یک از گزینه ها استفاده کنید.

    یک سند را به روز کنید

    برای به روز رسانی برخی از فیلدهای یک سند بدون بازنویسی کل سند، از متدهای update() مخصوص زبان زیر استفاده کنید:

    از متد updateDoc() استفاده کنید:

    import { doc, updateDoc } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Set the "capital" field of the city 'DC'
    await updateDoc(washingtonRef, {
      capital: true
    });

    از متد update() استفاده کنید:

    var washingtonRef = db.collection("cities").doc("DC");
    
    // Set the "capital" field of the city 'DC'
    return washingtonRef.update({
        capital: true
    })
    .then(() => {
        console.log("Document successfully updated!");
    })
    .catch((error) => {
        // The document probably doesn't exist.
        console.error("Error updating document: ", error);
    });

    از متد updateData() استفاده کنید:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Set the "capital" field of the city 'DC'
    do {
      try await washingtonRef.updateData([
        "capital": true
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }

    از متد updateData: استفاده کنید:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    // Set the "capital" field of the city
    [washingtonRef updateData:@{
      @"capital": @YES
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];

    از متد update() استفاده کنید:

    val washingtonRef = db.collection("cities").document("DC")
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
        .update("capital", true)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully updated!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error updating document", e) }

    از متد update() استفاده کنید:

    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
            .update("capital", true)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully updated!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error updating document", e);
                }
            });

    از متد update() استفاده کنید:

    final washingtonRef = db.collection("cites").doc("DC");
    washingtonRef.update({"capital": true}).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));

    از متد update() استفاده کنید:

    // Update an existing document
    DocumentReference docRef = db.collection("cities").document("DC");
    
    // (async) Update one field
    ApiFuture<WriteResult> future = docRef.update("capital", true);
    
    // ...
    WriteResult result = future.get();
    System.out.println("Write result: " + result);

    از متد update() استفاده کنید:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    city_ref.update({"capital": True})

    از متد update() استفاده کنید:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    await city_ref.update({"capital": True})

    از متد Update() استفاده کنید:

    DocumentReference washington_ref = db->Collection("cities").Document("DC");
    // Set the "capital" field of the city "DC".
    washington_ref.Update({{"capital", FieldValue::Boolean(true)}});

    از متد update() استفاده کنید:

    const cityRef = db.collection('cities').doc('DC');
    
    // Set the 'capital' field of the city
    const res = await cityRef.update({capital: true});

    از متد Update() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDoc(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("cities").Doc("DC").Update(ctx, []firestore.Update{
    		{
    			Path:  "capital",
    			Value: true,
    		},
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از متد update() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    $cityRef->update([
        ['path' => 'capital', 'value' => true]
    ]);

    از متد UpdateAsync() استفاده کنید:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
    	{ "Capital", false }
    };
    
    cityRef.UpdateAsync(updates).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the Capital field of the new-city-id document in the cities collection.");
    });
    // You can also update a single field with: cityRef.UpdateAsync("Capital", false);

    از متد UpdateAsync() استفاده کنید:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Capital", false }
    };
    await cityRef.UpdateAsync(updates);
    
    // You can also update a single field with: await cityRef.UpdateAsync("Capital", false);

    از متد update() استفاده کنید:

    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ capital: true })

    مهر زمان سرور

    می‌توانید فیلدی را در سند خود روی مهر زمانی سرور تنظیم کنید که زمان دریافت به‌روزرسانی توسط سرور را ردیابی می‌کند.

    import { updateDoc, serverTimestamp } from "firebase/firestore";
    
    const docRef = doc(db, 'objects', 'some-id');
    
    // Update the timestamp field with the value from the server
    const updateTimestamp = await updateDoc(docRef, {
        timestamp: serverTimestamp()
    });
    var docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    var updateTimestamp = docRef.update({
        timestamp: firebase.firestore.FieldValue.serverTimestamp()
    });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    do {
      try await db.collection("objects").document("some-id").updateData([
        "lastUpdated": FieldValue.serverTimestamp(),
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    [[[self.db collectionWithPath:@"objects"] documentWithPath:@"some-id"] updateData:@{
      @"lastUpdated": [FIRFieldValue fieldValueForServerTimestamp]
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // If you're using custom Kotlin objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    val docRef = db.collection("objects").document("some-id")
    
    // Update the timestamp field with the value from the server
    val updates = hashMapOf<String, Any>(
        "timestamp" to FieldValue.serverTimestamp(),
    )
    
    docRef.update(updates).addOnCompleteListener { }
    // If you're using custom Java objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    DocumentReference docRef = db.collection("objects").document("some-id");
    
    // Update the timestamp field with the value from the server
    Map<String,Object> updates = new HashMap<>();
    updates.put("timestamp", FieldValue.serverTimestamp());
    
    docRef.update(updates).addOnCompleteListener(new OnCompleteListener<Void>() {
        // ...
        // ...
    final docRef = db.collection("objects").doc("some-id");
    final updates = <String, dynamic>{
      "timestamp": FieldValue.serverTimestamp(),
    };
    
    docRef.update(updates).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));
    DocumentReference docRef = db.collection("objects").document("some-id");
    // Update the timestamp field with the value from the server
    ApiFuture<WriteResult> writeResult = docRef.update("timestamp", FieldValue.serverTimestamp());
    System.out.println("Update time : " + writeResult.get());
    city_ref = db.collection("objects").document("some-id")
    city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    city_ref = db.collection("objects").document("some-id")
    await city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    DocumentReference doc_ref = db->Collection("objects").Document("some-id");
    doc_ref.Update({{"timestamp", FieldValue::ServerTimestamp()}})
        .OnCompletion([](const Future<void>& future) {
          // ...
        });
    // Create a document reference
    const docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    const res = await docRef.update({
      timestamp: FieldValue.serverTimestamp()
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocServerTimestamp(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("objects").Doc("some-id").Set(ctx, map[string]interface{}{
    		"timestamp": firestore.ServerTimestamp,
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $docRef = $db->collection('samples/php/objects')->document('some-id');
    $docRef->update([
        ['path' => 'timestamp', 'value' => FieldValue::serverTimestamp()]
    ]);
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    cityRef.UpdateAsync("Timestamp", FieldValue.ServerTimestamp)
    	.ContinueWithOnMainThread(task => {
    		Debug.Log(
    			"Updated the Timestamp field of the new-city-id document in the cities "
    			+ "collection.");
    	});
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    await cityRef.UpdateAsync("Timestamp", Timestamp.GetCurrentTimestamp());
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.update({ timestamp: firestore.field_server_time })

    هنگام به روز رسانی چندین فیلد مُهر زمان در داخل یک تراکنش ، هر فیلد همان مقدار مهر زمانی سرور را دریافت می کند.

    فیلدها را در اشیاء تودرتو به روز کنید

    اگر سند شما حاوی اشیاء تودرتو است، می‌توانید هنگام فراخوانی update() از نماد نقطه برای ارجاع به فیلدهای تودرتو در سند استفاده کنید:

    import { doc, setDoc, updateDoc } from "firebase/firestore"; 
    
    // Create an initial document to update.
    const frankDocRef = doc(db, "users", "frank");
    await setDoc(frankDocRef, {
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    await updateDoc(frankDocRef, {
        "age": 13,
        "favorites.color": "Red"
    });
    // Create an initial document to update.
    var frankDocRef = db.collection("users").doc("frank");
    frankDocRef.set({
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    db.collection("users").doc("frank").update({
        "age": 13,
        "favorites.color": "Red"
    })
    .then(() => {
        console.log("Document successfully updated!");
    });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Create an initial document to update.
    let frankDocRef = db.collection("users").document("frank")
    do {
      try await frankDocRef.setData([
        "name": "Frank",
        "favorites": [ "food": "Pizza", "color": "Blue", "subject": "recess" ],
        "age": 12
      ])
    
      // To update age and favorite color:
      try await frankDocRef.updateData([
        "age": 13,
        "favorites.color": "Red"
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Create an initial document to update.
    FIRDocumentReference *frankDocRef =
        [[self.db collectionWithPath:@"users"] documentWithPath:@"frank"];
    [frankDocRef setData:@{
      @"name": @"Frank",
      @"favorites": @{
        @"food": @"Pizza",
        @"color": @"Blue",
        @"subject": @"recess"
      },
      @"age": @12
    }];
    // To update age and favorite color:
    [frankDocRef updateData:@{
      @"age": @13,
      @"favorites.color": @"Red",
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
        .update(
            mapOf(
                "age" to 13,
                "favorites.color" to "Red",
            ),
        )
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
            .update(
                    "age", 13,
                    "favorites.color", "Red"
            );
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    db
        .collection("users")
        .doc("frank")
        .update({"age": 13, "favorites.color": "Red"});
    // Create an initial document to update
    DocumentReference frankDocRef = db.collection("users").document("frank");
    Map<String, Object> initialData = new HashMap<>();
    initialData.put("name", "Frank");
    initialData.put("age", 12);
    
    Map<String, Object> favorites = new HashMap<>();
    favorites.put("food", "Pizza");
    favorites.put("color", "Blue");
    favorites.put("subject", "Recess");
    initialData.put("favorites", favorites);
    
    ApiFuture<WriteResult> initialResult = frankDocRef.set(initialData);
    // Confirm that data has been successfully saved by blocking on the operation
    initialResult.get();
    
    // Update age and favorite color
    Map<String, Object> updates = new HashMap<>();
    updates.put("age", 13);
    updates.put("favorites.color", "Red");
    
    // Async update document
    ApiFuture<WriteResult> writeResult = frankDocRef.update(updates);
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    frank_ref.update({"age": 13, "favorites.color": "Red"})
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    await frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    await frank_ref.update({"age": 13, "favorites.color": "Red"})
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db->Collection("users").Document("frank").Update({
        {"age", FieldValue::Integer(13)},
        {"favorites.color", FieldValue::String("red")},
    });
    const initialData = {
      name: 'Frank',
      age: 12,
      favorites: {
        food: 'Pizza',
        color: 'Blue',
        subject: 'recess'
      }
    };
    
    // ...
    const res = await db.collection('users').doc('Frank').update({
      age: 13,
      'favorites.color': 'Red'
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocNested(ctx context.Context, client *firestore.Client) error {
    	initialData := map[string]interface{}{
    		"name": "Frank",
    		"age":  12,
    		"favorites": map[string]interface{}{
    			"food":    "Pizza",
    			"color":   "Blue",
    			"subject": "recess",
    		},
    	}
    
    	// ...
    
    	_, err := client.Collection("users").Doc("frank").Set(ctx, map[string]interface{}{
    		"age": 13,
    		"favorites": map[string]interface{}{
    			"color": "Red",
    		},
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    // Create an initial document to update
    $frankRef = $db->collection('samples/php/users')->document('frank');
    $frankRef->set([
        'first' => 'Frank',
        'last' => 'Franklin',
        'favorites' => ['food' => 'Pizza', 'color' => 'Blue', 'subject' => 'Recess'],
        'age' => 12
    ]);
    
    // Update age and favorite color
    $frankRef->update([
        ['path' => 'age', 'value' => 13],
        ['path' => 'favorites.color', 'value' => 'Red']
    ]);
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
    	{ "Name", "Frank" },
    	{ "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
    	{ "Food", "Pizza" },
    	{ "Color", "Blue" },
    	{ "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    frankDocRef.SetAsync(initialData).ContinueWithOnMainThread(task => {
    
    	// Update age and favorite color
    	Dictionary<string, object> updates = new Dictionary<string, object>
    	{
    		{ "Age", 13 },
    		{ "Favorites.Color", "Red" },
    	};
    
    	// Asynchronously update the document
    	return frankDocRef.UpdateAsync(updates);
    }).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the age and favorite color fields of the Frank document in "
    		+ "the users collection.");
    });
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
        { "Name", "Frank" },
        { "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
        { "Food", "Pizza" },
        { "Color", "Blue" },
        { "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    await frankDocRef.SetAsync(initialData);
    
    // Update age and favorite color
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Age", 13 },
        { "Favorites.Color", "Red" },
    };
    
    // Asynchronously update the document
    await frankDocRef.UpdateAsync(updates);
    # Create an initial document to update
    frank_ref = firestore.doc "#{collection_path}/frank"
    frank_ref.set(
      {
        name:      "Frank",
        favorites: {
          food:    "Pizza",
          color:   "Blue",
          subject: "Recess"
        },
        age:       12
      }
    )
    
    # Update age and favorite color
    frank_ref.update({ age: 13, "favorites.color": "Red" })

    نماد نقطه به شما امکان می دهد یک فیلد تودرتو را بدون بازنویسی سایر فیلدهای تودرتو به روز کنید. اگر یک فیلد تودرتو را بدون علامت نقطه به روز کنید، کل فیلد نقشه را بازنویسی می کنید، همانطور که در مثال زیر نشان داده شده است:

    وب
    // Create our initial doc
    db.collection("users").doc("frank").set({
      name: "Frank",
      favorites: {
        food: "Pizza",
        color: "Blue",
        subject: "Recess"
      },
      age: 12
    }).then(function() {
      console.log("Frank created");
    });
    
    // Update the doc without using dot notation.
    // Notice the map value for favorites.
    db.collection("users").doc("frank").update({
      favorites: {
        food: "Ice Cream"
      }
    }).then(function() {
      console.log("Frank food updated");
    });
    
    /*
    Ending State, favorite.color and favorite.subject are no longer present:
    /users
        /frank
            {
                name: "Frank",
                favorites: {
                    food: "Ice Cream",
                },
                age: 12
            }
     */

    به روز رسانی عناصر در یک آرایه

    اگر سند شما حاوی یک فیلد آرایه است، می توانید از arrayUnion() و arrayRemove() برای افزودن و حذف عناصر استفاده کنید. arrayUnion() عناصری را به یک آرایه اضافه می کند اما فقط عناصری را که قبلاً وجود ندارند اضافه می کند. arrayRemove() تمام نمونه های هر عنصر داده شده را حذف می کند.

    import { doc, updateDoc, arrayUnion, arrayRemove } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically add a new region to the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayRemove("east_coast")
    });
    var washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayRemove("east_coast")
    });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayUnion(["greater_virginia"])
    ])
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayRemove(["east_coast"])
    ])
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically add a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayUnion:@[@"greater_virginia"]]
    }];
    
    // Atomically remove a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayRemove:@[@"east_coast"]]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"))
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    final washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayUnion(["greater_virginia"]),
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayRemove(["east_coast"]),
    });
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    ApiFuture<WriteResult> arrayUnion =
        washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    System.out.println("Update time : " + arrayUnion.get());
    
    // Atomically remove a region from the "regions" array field.
    ApiFuture<WriteResult> arrayRm =
        washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    System.out.println("Update time : " + arrayRm.get());
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically add a new region to the "regions" array field.
    const unionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('greater_virginia')
    });
    // Atomically remove a region from the "regions" array field.
    const removeRes = await washingtonRef.update({
      regions: FieldValue.arrayRemove('east_coast')
    });
    
    // To add or remove multiple items, pass multiple arguments to arrayUnion/arrayRemove
    const multipleUnionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('south_carolina', 'texas')
      // Alternatively, you can use spread operator in ES6 syntax
      // const newRegions = ['south_carolina', 'texas']
      // regions: FieldValue.arrayUnion(...newRegions)
    });
    // Not supported yet

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically add a new region to the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayUnion(['greater_virginia'])]
    ]);
    
    // Atomically remove a region from the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayRemove(['east_coast'])]
    ]);
    // This is not yet supported in the Unity SDK
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically add a new region to the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayRemove("east_coast"));
    // Not supported yet

    یک مقدار عددی را افزایش دهید

    همانطور که در مثال زیر نشان داده شده است، می توانید مقدار فیلد عددی را افزایش یا کاهش دهید. یک عملیات افزایشی، مقدار فعلی یک فیلد را به مقدار معین افزایش یا کاهش می دهد.

    import { doc, updateDoc, increment } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically increment the population of the city by 50.
    await updateDoc(washingtonRef, {
        population: increment(50)
    });
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update({
        population: firebase.firestore.FieldValue.increment(50)
    });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    washingtonRef.updateData([
      "population": FieldValue.increment(Int64(50))
    ])
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    [washingtonRef updateData:@{
      @"population": [FIRFieldValue fieldValueForIntegerIncrement:50]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50));
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update(
      {"population": FieldValue.increment(50)},
    );
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    final ApiFuture<WriteResult> updateFuture =
        washingtonRef.update("population", FieldValue.increment(50));
    washington_ref = db.collection("cities").document("DC")
    
    washington_ref.update({"population": firestore.Increment(50)})
    washington_ref = db.collection("cities").document("DC")
    
    await washington_ref.update({"population": firestore.Increment(50)})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    const res = await washingtonRef.update({
      population: FieldValue.increment(50)
    });
    import (
    	"context"
    	"fmt"
    
    	"cloud.google.com/go/firestore"
    )
    
    // updateDocumentIncrement increments the population of the city document in the
    // cities collection by 50.
    func updateDocumentIncrement(projectID, city string) error {
    	// projectID := "my-project"
    
    	ctx := context.Background()
    
    	client, err := firestore.NewClient(ctx, projectID)
    	if err != nil {
    		return fmt.Errorf("firestore.NewClient: %w", err)
    	}
    	defer client.Close()
    
    	dc := client.Collection("cities").Doc(city)
    	_, err = dc.Update(ctx, []firestore.Update{
    		{Path: "population", Value: firestore.Increment(50)},
    	})
    	if err != nil {
    		return fmt.Errorf("Update: %w", err)
    	}
    
    	return nil
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically increment the population of the city by 50.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::increment(50)]
    ]);
    // This is not yet supported in the Unity SDK.
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically increment the population of the city by 50.
    await washingtonRef.UpdateAsync("Regions", FieldValue.Increment(50));
    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ population: firestore.field_increment(50) })

    عملیات افزایشی برای پیاده سازی شمارنده ها مفید است. توجه داشته باشید که به‌روزرسانی سریع یک سند می‌تواند منجر به مشاجره یا خطا شود . اگر می خواهید پیشخوان خود را با سرعت بسیار بالا به روز کنید، به صفحه شمارنده های توزیع شده مراجعه کنید.

    ،

    این سند نحوه تنظیم، افزودن یا به‌روزرسانی اسناد فردی را در Cloud Firestore توضیح می‌دهد. برای نوشتن داده ها به صورت انبوه، به تراکنش ها و نوشته های دسته ای مراجعه کنید.

    نمای کلی

    می توانید داده ها را به یکی از روش های زیر در Cloud Firestore بنویسید:

    • داده های یک سند را در یک مجموعه تنظیم کنید و به صراحت یک شناسه سند را مشخص کنید.
    • یک سند جدید به مجموعه اضافه کنید. در این حالت، Cloud Firestore به طور خودکار شناسه سند را تولید می کند.
    • یک سند خالی با شناسه ای که به طور خودکار تولید می شود ایجاد کنید و بعداً داده ها را به آن اختصاص دهید.

    قبل از شروع

    قبل از اینکه بتوانید Cloud Firestore برای تنظیم، افزودن یا به‌روزرسانی داده‌ها مقداردهی کنید، باید مراحل زیر را انجام دهید:

    Cloud Firestore را راه اندازی کنید

    نمونه ای از Cloud Firestore را راه اندازی کنید:

    import { initializeApp } from "firebase/app";
    import { getFirestore } from "firebase/firestore";
    
    // TODO: Replace the following with your app's Firebase project configuration
    // See: https://support.google.com/firebase/answer/7015592
    const firebaseConfig = {
        FIREBASE_CONFIGURATION
    };
    
    // Initialize Firebase
    const app = initializeApp(firebaseConfig);
    
    
    // Initialize Cloud Firestore and get a reference to the service
    const db = getFirestore(app);
    

    firebaseConfig برنامه وب خود را جایگزین FIREBASE_CONFIGURATION کنید.

    برای تداوم داده‌ها وقتی دستگاه اتصال خود را قطع می‌کند، به مستندات Enable Data Offline مراجعه کنید.

    import firebase from "firebase/app";
    import "firebase/firestore";
    
    // TODO: Replace the following with your app's Firebase project configuration
    // See: https://support.google.com/firebase/answer/7015592
    const firebaseConfig = {
        FIREBASE_CONFIGURATION
    };
    
    // Initialize Firebase
    firebase.initializeApp(firebaseConfig);
    
    
    // Initialize Cloud Firestore and get a reference to the service
    const db = firebase.firestore();
    

    firebaseConfig برنامه وب خود را جایگزین FIREBASE_CONFIGURATION کنید.

    برای تداوم داده‌ها وقتی دستگاه اتصال خود را قطع می‌کند، به مستندات Enable Data Offline مراجعه کنید.

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    import FirebaseCore
    import FirebaseFirestore
    FirebaseApp.configure()
    
    let db = Firestore.firestore()
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    @import FirebaseCore;
    @import FirebaseFirestore;
    
    // Use Firebase library to configure APIs
    [FIRApp configure];
      
    FIRFirestore *defaultFirestore = [FIRFirestore firestore];
    // Access a Cloud Firestore instance from your Activity
    val db = Firebase.firestore
    // Access a Cloud Firestore instance from your Activity
    FirebaseFirestore db = FirebaseFirestore.getInstance();
    db = FirebaseFirestore.instance;
    بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use the application default credentials
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault();
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .setProjectId(projectId)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use a service account
    InputStream serviceAccount = new FileInputStream("path/to/serviceAccount.json");
    GoogleCredentials credentials = GoogleCredentials.fromStream(serviceAccount);
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import firebase_admin
    from firebase_admin import firestore
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore.client()

    یک اعتبار پیش فرض برنامه موجود نیز می تواند برای مقداردهی اولیه SDK استفاده شود.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore.client()
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore.client()
  • بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import firebase_admin
    from firebase_admin import firestore_async
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore_async.client()

    یک اعتبار پیش فرض برنامه موجود نیز می تواند برای مقداردهی اولیه SDK استفاده شود.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore_async.client()
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore_async.client()
  • // Make sure the call to `Create()` happens some time before you call Firestore::GetInstance().
    App::Create();
    Firestore* db = Firestore::GetInstance();
    بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
    • در Cloud Functions راه اندازی کنید
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp();
      
      const db = getFirestore();
      
    • در Google Cloud راه اندازی کنید
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp({
        credential: applicationDefault()
      });
      
      const db = getFirestore();
    • بر روی سرور خود راه اندازی کنید

      برای استفاده از Firebase Admin SDK در سرور خود (یا هر محیط دیگر Node.js)، از یک حساب سرویس استفاده کنید. به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      const serviceAccount = require('./path/to/serviceAccountKey.json');
      
      initializeApp({
        credential: cert(serviceAccount)
      });
      
      const db = getFirestore();
      
    بسته به محیط شما، Cloud Firestore SDK به روش های مختلفی مقداردهی اولیه می شود. در زیر رایج ترین روش ها آورده شده است. برای یک مرجع کامل، به Initialize the Admin SDK مراجعه کنید.
  • در Google Cloud راه اندازی کنید
    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use the application default credentials
    ctx := context.Background()
    conf := &firebase.Config{ProjectID: projectID}
    app, err := firebase.NewApp(ctx, conf)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • بر روی سرور خود راه اندازی کنید

    برای استفاده از Firebase Admin SDK در سرور خود، از یک حساب سرویس استفاده کنید.

    به IAM & admin > حساب‌های سرویس در کنسول Google Cloud بروید. یک کلید خصوصی جدید ایجاد کنید و فایل JSON را ذخیره کنید. سپس از فایل برای مقداردهی اولیه SDK استفاده کنید:

    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use a service account
    ctx := context.Background()
    sa := option.WithCredentialsFile("path/to/serviceAccount.json")
    app, err := firebase.NewApp(ctx, nil, sa)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    use Google\Cloud\Firestore\FirestoreClient;
    
    /**
     * Initialize Cloud Firestore with default project ID.
     */
    function setup_client_create(string $projectId = null)
    {
        // Create the Cloud Firestore client
        if (empty($projectId)) {
            // The `projectId` parameter is optional and represents which project the
            // client will act on behalf of. If not supplied, the client falls back to
            // the default project inferred from the environment.
            $db = new FirestoreClient();
            printf('Created Cloud Firestore client with default project ID.' . PHP_EOL);
        } else {
            $db = new FirestoreClient([
                'projectId' => $projectId,
            ]);
            printf('Created Cloud Firestore client with project ID: %s' . PHP_EOL, $projectId);
        }
    }
    using Firebase.Firestore;
    using Firebase.Extensions;
    FirebaseFirestore db = FirebaseFirestore.DefaultInstance;

    سی شارپ

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    FirestoreDb db = FirestoreDb.Create(project);
    Console.WriteLine("Created Cloud Firestore client with project ID: {0}", project);
    require "google/cloud/firestore"
    
    # The `project_id` parameter is optional and represents which project the
    # client will act on behalf of. If not supplied, the client falls back to the
    # default project inferred from the environment.
    firestore = Google::Cloud::Firestore.new project_id: project_id
    
    puts "Created Cloud Firestore client with given project ID."

    یک سند تنظیم کنید

    برای ایجاد یا بازنویسی یک سند واحد، از متدهای set() مخصوص زبان زیر استفاده کنید:

    از متد setDoc() استفاده کنید:

    import { doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document in collection "cities"
    await setDoc(doc(db, "cities", "LA"), {
      name: "Los Angeles",
      state: "CA",
      country: "USA"
    });

    از متد set() استفاده کنید:

    // Add a new document in collection "cities"
    db.collection("cities").doc("LA").set({
        name: "Los Angeles",
        state: "CA",
        country: "USA"
    })
    .then(() => {
        console.log("Document successfully written!");
    })
    .catch((error) => {
        console.error("Error writing document: ", error);
    });

    از متد setData() استفاده کنید:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Add a new document in collection "cities"
    do {
      try await db.collection("cities").document("LA").setData([
        "name": "Los Angeles",
        "state": "CA",
        "country": "USA"
      ])
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }

    از متد setData: استفاده کنید:

    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Add a new document in collection "cities"
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"LA"] setData:@{
      @"name": @"Los Angeles",
      @"state": @"CA",
      @"country": @"USA"
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error writing document: %@", error);
      } else {
        NSLog(@"Document successfully written!");
      }
    }];

    از متد set() استفاده کنید:

    val city = hashMapOf(
        "name" to "Los Angeles",
        "state" to "CA",
        "country" to "USA",
    )
    
    db.collection("cities").document("LA")
        .set(city)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }

    از متد set() استفاده کنید:

    Map<String, Object> city = new HashMap<>();
    city.put("name", "Los Angeles");
    city.put("state", "CA");
    city.put("country", "USA");
    
    db.collection("cities").document("LA")
            .set(city)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });

    از متد set() استفاده کنید:

    final city = <String, String>{
      "name": "Los Angeles",
      "state": "CA",
      "country": "USA"
    };
    
    db
        .collection("cities")
        .doc("LA")
        .set(city)
        .onError((e, _) => print("Error writing document: $e"));

    از متد set() استفاده کنید:

    // Create a Map to store the data we want to set
    Map<String, Object> docData = new HashMap<>();
    docData.put("name", "Los Angeles");
    docData.put("state", "CA");
    docData.put("country", "USA");
    docData.put("regions", Arrays.asList("west_coast", "socal"));
    // Add a new document (asynchronously) in collection "cities" with id "LA"
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(docData);
    // ...
    // future.get() blocks on response
    System.out.println("Update time : " + future.get().getUpdateTime());

    از متد set() استفاده کنید:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    db.collection("cities").document("LA").set(data)

    از متد set() استفاده کنید:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    await db.collection("cities").document("LA").set(data)

    از متد Set() استفاده کنید:

    // Add a new document in collection 'cities'
    db->Collection("cities")
        .Document("LA")
        .Set({{"name", FieldValue::String("Los Angeles")},
              {"state", FieldValue::String("CA")},
              {"country", FieldValue::String("USA")}})
        .OnCompletion([](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });

    از متد set() استفاده کنید:

    const data = {
      name: 'Los Angeles',
      state: 'CA',
      country: 'USA'
    };
    
    // Add a new document in collection "cities" with ID 'LA'
    const res = await db.collection('cities').doc('LA').set(data);

    از متد Set() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsMap(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, map[string]interface{}{
    		"name":    "Los Angeles",
    		"state":   "CA",
    		"country": "USA",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از متد set() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $data = [
        'name' => 'Los Angeles',
        'state' => 'CA',
        'country' => 'USA'
    ];
    $db->collection('samples/php/cities')->document('LA')->set($data);

    از متد SetAsync() استفاده کنید:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Los Angeles" },
    	{ "State", "CA" },
    	{ "Country", "USA" }
    };
    docRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log("Added data to the LA document in the cities collection.");
    });

    از متد SetAsync() استفاده کنید:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "name", "Los Angeles" },
        { "state", "CA" },
        { "country", "USA" }
    };
    await docRef.SetAsync(city);

    از متد set() استفاده کنید:

    city_ref = firestore.doc "#{collection_path}/LA"
    
    data = {
      name:    "Los Angeles",
      state:   "CA",
      country: "USA"
    }
    
    city_ref.set data

    اگر سند وجود نداشته باشد، ایجاد می شود. اگر سند وجود داشته باشد، محتویات آن با داده‌های ارائه‌شده جدید رونویسی می‌شود، مگر اینکه مشخص کنید که داده‌ها باید در سند موجود ادغام شوند، به شرح زیر:

    import { doc, setDoc } from "firebase/firestore"; 
    
    const cityRef = doc(db, 'cities', 'BJ');
    setDoc(cityRef, { capital: true }, { merge: true });
    var cityRef = db.collection('cities').doc('BJ');
    
    var setWithMerge = cityRef.set({
        capital: true
    }, { merge: true });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Update one field, creating the document if it does not exist.
    db.collection("cities").document("BJ").setData([ "capital": true ], merge: true)
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // Write to the document reference, merging data with existing
    // if the document already exists
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"BJ"]
         setData:@{ @"capital": @YES }
         merge:YES
         completion:^(NSError * _Nullable error) {
           // ...
         }];
    // Update one field, creating the document if it does not already exist.
    val data = hashMapOf("capital" to true)
    
    db.collection("cities").document("BJ")
        .set(data, SetOptions.merge())
    // Update one field, creating the document if it does not already exist.
    Map<String, Object> data = new HashMap<>();
    data.put("capital", true);
    
    db.collection("cities").document("BJ")
            .set(data, SetOptions.merge());
    // Update one field, creating the document if it does not already exist.
    final data = {"capital": true};
    
    db.collection("cities").doc("BJ").set(data, SetOptions(merge: true));
    // asynchronously update doc, create the document if missing
    Map<String, Object> update = new HashMap<>();
    update.put("capital", true);
    
    ApiFuture<WriteResult> writeResult =
        db.collection("cities").document("BJ").set(update, SetOptions.merge());
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    city_ref = db.collection("cities").document("BJ")
    
    city_ref.set({"capital": True}, merge=True)
    city_ref = db.collection("cities").document("BJ")
    
    await city_ref.set({"capital": True}, merge=True)
    db->Collection("cities").Document("BJ").Set(
        {{"capital", FieldValue::Boolean(true)}}, SetOptions::Merge());
    const cityRef = db.collection('cities').doc('BJ');
    
    const res = await cityRef.set({
      capital: true
    }, { merge: true });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocCreateIfMissing(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("BJ").Set(ctx, map[string]interface{}{
    		"capital": true,
    	}, firestore.MergeAll)
    
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('BJ');
    $cityRef->set([
        'capital' => true
    ], ['merge' => true]);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
    	{ "capital", false }
    };
    docRef.SetAsync(update, SetOptions.MergeAll);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
        { "capital", false }
    };
    await docRef.SetAsync(update, SetOptions.MergeAll);
    city_ref = firestore.doc "#{collection_path}/LA"
    city_ref.set({ capital: false }, merge: true)

    اگر مطمئن نیستید که سند وجود دارد یا خیر، گزینه ادغام داده های جدید با هر سند موجود را برای جلوگیری از رونویسی کل اسناد عبور دهید. برای اسنادی که حاوی نقشه هستند، اگر مجموعه ای را با یک فیلد مشخص کنید که حاوی یک نقشه خالی است، فیلد نقشه سند مورد نظر بازنویسی می شود.

    انواع داده ها

    Cloud Firestore به شما امکان می دهد انواع داده ها را در داخل یک سند بنویسید، از جمله رشته ها، بولی ها، اعداد، تاریخ ها، آرایه ها و اشیاء تهی و تودرتو. Cloud Firestore همیشه اعداد را به صورت دو برابر ذخیره می کند، صرف نظر از اینکه از چه نوع عددی در کد خود استفاده می کنید.

    import { doc, setDoc, Timestamp } from "firebase/firestore"; 
    
    const docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    await setDoc(doc(db, "data", "one"), docData);
    var docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: firebase.firestore.Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    db.collection("data").doc("one").set(docData).then(() => {
        console.log("Document successfully written!");
    });
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    let docData: [String: Any] = [
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp(date: Date()),
      "arrayExample": [5, true, "hello"],
      "nullExample": NSNull(),
      "objectExample": [
        "a": 5,
        "b": [
          "nested": "foo"
        ]
      ]
    ]
    do {
      try await db.collection("data").document("one").setData(docData)
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    NSDictionary *docData = @{
      @"stringExample": @"Hello world!",
      @"booleanExample": @YES,
      @"numberExample": @3.14,
      @"dateExample": [FIRTimestamp timestampWithDate:[NSDate date]],
      @"arrayExample": @[@5, @YES, @"hello"],
      @"nullExample": [NSNull null],
      @"objectExample": @{
        @"a": @5,
        @"b": @{
          @"nested": @"foo"
        }
      }
    };
    
    [[[self.db collectionWithPath:@"data"] documentWithPath:@"one"] setData:docData
        completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error writing document: %@", error);
          } else {
            NSLog(@"Document successfully written!");
          }
        }];
    val docData = hashMapOf(
        "stringExample" to "Hello world!",
        "booleanExample" to true,
        "numberExample" to 3.14159265,
        "dateExample" to Timestamp(Date()),
        "listExample" to arrayListOf(1, 2, 3),
        "nullExample" to null,
    )
    
    val nestedData = hashMapOf(
        "a" to 5,
        "b" to true,
    )
    
    docData["objectExample"] = nestedData
    
    db.collection("data").document("one")
        .set(docData)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello world!");
    docData.put("booleanExample", true);
    docData.put("numberExample", 3.14159265);
    docData.put("dateExample", new Timestamp(new Date()));
    docData.put("listExample", Arrays.asList(1, 2, 3));
    docData.put("nullExample", null);
    
    Map<String, Object> nestedData = new HashMap<>();
    nestedData.put("a", 5);
    nestedData.put("b", true);
    
    docData.put("objectExample", nestedData);
    
    db.collection("data").document("one")
            .set(docData)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });
    final docData = {
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp.now(),
      "listExample": [1, 2, 3],
      "nullExample": null
    };
    
    final nestedData = {
      "a": 5,
      "b": true,
    };
    
    docData["objectExample"] = nestedData;
    
    db
        .collection("data")
        .doc("one")
        .set(docData)
        .onError((e, _) => print("Error writing document: $e"));
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello, World");
    docData.put("booleanExample", false);
    docData.put("numberExample", 3.14159265);
    docData.put("nullExample", null);
    
    ArrayList<Object> arrayExample = new ArrayList<>();
    Collections.addAll(arrayExample, 5L, true, "hello");
    docData.put("arrayExample", arrayExample);
    
    Map<String, Object> objectExample = new HashMap<>();
    objectExample.put("a", 5L);
    objectExample.put("b", true);
    
    docData.put("objectExample", objectExample);
    
    ApiFuture<WriteResult> future = db.collection("data").document("one").set(docData);
    System.out.println("Update time : " + future.get().getUpdateTime());
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    db.collection("data").document("one").set(data)
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    await db.collection("data").document("one").set(data)
    MapFieldValue doc_data{
        {"stringExample", FieldValue::String("Hello world!")},
        {"booleanExample", FieldValue::Boolean(true)},
        {"numberExample", FieldValue::Double(3.14159265)},
        {"dateExample", FieldValue::Timestamp(Timestamp::Now())},
        {"arrayExample", FieldValue::Array({FieldValue::Integer(1),
                                            FieldValue::Integer(2),
                                            FieldValue::Integer(3)})},
        {"nullExample", FieldValue::Null()},
        {"objectExample",
         FieldValue::Map(
             {{"a", FieldValue::Integer(5)},
              {"b", FieldValue::Map(
                        {{"nested", FieldValue::String("foo")}})}})},
    };
    
    db->Collection("data").Document("one").Set(doc_data).OnCompletion(
        [](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });
    const data = {
      stringExample: 'Hello, World!',
      booleanExample: true,
      numberExample: 3.14159265,
      dateExample: Timestamp.fromDate(new Date('December 10, 1815')),
      arrayExample: [5, true, 'hello'],
      nullExample: null,
      objectExample: {
        a: 5,
        b: true
      }
    };
    
    const res = await db.collection('data').doc('one').set(data);
    
    import (
    	"context"
    	"log"
    	"time"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocDataTypes(ctx context.Context, client *firestore.Client) error {
    	doc := make(map[string]interface{})
    	doc["stringExample"] = "Hello world!"
    	doc["booleanExample"] = true
    	doc["numberExample"] = 3.14159265
    	doc["dateExample"] = time.Now()
    	doc["arrayExample"] = []interface{}{5, true, "hello"}
    	doc["nullExample"] = nil
    	doc["objectExample"] = map[string]interface{}{
    		"a": 5,
    		"b": true,
    	}
    
    	_, err := client.Collection("data").Doc("one").Set(ctx, doc)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    $data = [
        'stringExample' => 'Hello World',
        'booleanExample' => true,
        'numberExample' => 3.14159265,
        'dateExample' => new Timestamp(new DateTime()),
        'arrayExample' => array(5, true, 'hello'),
        'nullExample' => null,
        'objectExample' => ['a' => 5, 'b' => true],
        'documentReferenceExample' => $db->collection('samples/php/data')->document('two'),
    ];
    $db->collection('samples/php/data')->document('one')->set($data);
    printf('Set multiple data-type data for the one document in the data collection.' . PHP_EOL);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
    	{ "stringExample", "Hello World" },
    	{ "booleanExample", false },
    	{ "numberExample", 3.14159265 },
    	{ "nullExample", null },
    	{ "arrayExample", new List<object>() { 5, true, "Hello" } },
    	{ "objectExample", new Dictionary<string, object>
    		{
    			{ "a", 5 },
    			{ "b", true },
    		}
    	},
    };
    
    docRef.SetAsync(docData);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
        { "stringExample", "Hello World" },
        { "booleanExample", false },
        { "numberExample", 3.14159265 },
        { "nullExample", null },
        { "arrayExample", new object[] { 5, true, "Hello" } },
        { "objectExample", new Dictionary<string, object>
            {
                { "a", 5 },
                { "b", true},
            }
        }
    };
    
    await docRef.SetAsync(docData);
    doc_ref = firestore.doc "#{collection_path}/one"
    
    data = {
      stringExample:  "Hello, World!",
      booleanExample: true,
      numberExample:  3.14159265,
      dateExample:    DateTime.now,
      arrayExample:   [5, true, "hello"],
      nullExample:    nil,
      objectExample:  {
        a: 5,
        b: true
      }
    }
    
    doc_ref.set data

    اشیاء سفارشی

    استفاده از اشیاء Map یا Dictionary برای نشان دادن اسناد شما اغلب ناخوشایند است، بنابراین Cloud Firestore از نوشتن اسناد با کلاس های سفارشی پشتیبانی می کند. Cloud Firestore اشیاء را به انواع داده های پشتیبانی شده تبدیل می کند.

    با استفاده از کلاس های سفارشی، می توانید مثال اولیه را به روش زیر بازنویسی کنید:

    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    const cityConverter = {
        toFirestore: (city) => {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: (snapshot, options) => {
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    var cityConverter = {
        toFirestore: function(city) {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: function(snapshot, options){
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    public struct City: Codable {
    
      let name: String
      let state: String?
      let country: String?
      let isCapital: Bool?
      let population: Int64?
    
      enum CodingKeys: String, CodingKey {
        case name
        case state
        case country
        case isCapital = "capital"
        case population
      }
    
    }
    توجه: این محصول در اهداف watchOS و App Clip موجود نیست.
    // This isn't supported in Objective-C.
      
    data class City(
        val name: String? = null,
        val state: String? = null,
        val country: String? = null,
        @field:JvmField // use this annotation if your Boolean field is prefixed with 'is'
        val isCapital: Boolean? = null,
        val population: Long? = null,
        val regions: List<String>? = null,
    )

    هر کلاس سفارشی باید یک سازنده عمومی داشته باشد که هیچ آرگومانی دریافت نکند. علاوه بر این، کلاس باید شامل یک گیرنده عمومی برای هر ویژگی باشد.

    public class City {
    
    
        private String name;
        private String state;
        private String country;
        private boolean capital;
        private long population;
        private List<String> regions;
    
        public City() {}
    
        public City(String name, String state, String country, boolean capital, long population, List<String> regions) {
            // ...
        }
    
        public String getName() {
            return name;
        }
    
        public String getState() {
            return state;
        }
    
        public String getCountry() {
            return country;
        }
    
        public boolean isCapital() {
            return capital;
        }
    
        public long getPopulation() {
            return population;
        }
    
        public List<String> getRegions() {
            return regions;
        }
    
    }
    class City {
      final String? name;
      final String? state;
      final String? country;
      final bool? capital;
      final int? population;
      final List<String>? regions;
    
      City({
        this.name,
        this.state,
        this.country,
        this.capital,
        this.population,
        this.regions,
      });
    
      factory City.fromFirestore(
        DocumentSnapshot<Map<String, dynamic>> snapshot,
        SnapshotOptions? options,
      ) {
        final data = snapshot.data();
        return City(
          name: data?['name'],
          state: data?['state'],
          country: data?['country'],
          capital: data?['capital'],
          population: data?['population'],
          regions:
              data?['regions'] is Iterable ? List.from(data?['regions']) : null,
        );
      }
    
      Map<String, dynamic> toFirestore() {
        return {
          if (name != null) "name": name,
          if (state != null) "state": state,
          if (country != null) "country": country,
          if (capital != null) "capital": capital,
          if (population != null) "population": population,
          if (regions != null) "regions": regions,
        };
      }
    }
    public City() {
      // Must have a public no-argument constructor
    }
    
    // Initialize all fields of a city
    public City(
        String name,
        String state,
        String country,
        Boolean capital,
        Long population,
        List<String> regions) {
      this.name = name;
      this.state = state;
      this.country = country;
      this.capital = capital;
      this.population = population;
      this.regions = regions;
    }
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    // City represents a city.
    type City struct {
    	Name       string   `firestore:"name,omitempty"`
    	State      string   `firestore:"state,omitempty"`
    	Country    string   `firestore:"country,omitempty"`
    	Capital    bool     `firestore:"capital,omitempty"`
    	Population int64    `firestore:"population,omitempty"`
    	Density    int64    `firestore:"density,omitempty"`
    	Regions    []string `firestore:"regions,omitempty"`
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد کلاینت Cloud Firestore ، به کتابخانه های سرویس گیرنده Cloud Firestore مراجعه کنید.

    class City
    {
        /** @var string */
        public $name;
        /** @var string */
        public $state;
        /** @var string */
        public $country;
        /** @var bool */
        public $capital;
        /** @var int */
        public $population;
        /** @var array<string> */
        public $regions;
    
        /**
         * @param array<string> $regions
         */
        public function __construct(
            string $name,
            string $state,
            string $country,
            bool $capital = false,
            int $population = 0,
            array $regions = []
        ) {
            $this->name = $name;
            $this->state = $state;
            $this->country = $country;
            $this->capital = $capital;
            $this->population = $population;
            $this->regions = $regions;
        }
    
        /**
         * @param array<mixed> $source
         */
        public static function fromArray(array $source): City
        {
            // implementation of fromArray is excluded for brevity
            # ...
        }
    
        /**
         * @return array<mixed>
         */
        public function toArray(): array
        {
            // implementation of toArray is excluded for brevity
            # ...
        }
    
        public function __toString()
        {
            // implementation of __toString is excluded for brevity
            # ...
        }
    }
    
    [FirestoreData]
    public class City
    {
    	[FirestoreProperty]
    	public string Name { get; set; }
    
    	[FirestoreProperty]
    	public string State { get; set; }
    
    	[FirestoreProperty]
    	public string Country { get; set; }
    
    	[FirestoreProperty]
    	public bool Capital { get; set; }
    
    	[FirestoreProperty]
    	public long Population { get; set; }
    }
    [FirestoreData]
    public class City
    {
        [FirestoreProperty]
        public string Name { get; set; }
    
        [FirestoreProperty]
        public string State { get; set; }
    
        [FirestoreProperty]
        public string Country { get; set; }
    
        [FirestoreProperty]
        public bool Capital { get; set; }
    
        [FirestoreProperty]
        public long Population { get; set; }
    }
    // This isn't supported in Ruby
    import { doc, setDoc } from "firebase/firestore"; 
    
    // Set with cityConverter
    const ref = doc(db, "cities", "LA").withConverter(cityConverter);
    await setDoc(ref, new City("Los Angeles", "CA", "USA"));
    // Set with cityConverter
    db.collection("cities").doc("LA")
      .withConverter(cityConverter)
      .set(new City("Los Angeles", "CA", "USA"));
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let city = City(name: "Los Angeles",
                    state: "CA",
                    country: "USA",
                    isCapital: false,
                    population: 5000000)
    
    do {
      try db.collection("cities").document("LA").setData(from: city)
    } catch let error {
      print("Error writing city to Firestore: \(error)")
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // This isn't supported in Objective-C.
      
    val city = City(
        "Los Angeles",
        "CA",
        "USA",
        false,
        5000000L,
        listOf("west_coast", "socal"),
    )
    db.collection("cities").document("LA").set(city)
    City city = new City("Los Angeles", "CA", "USA",
            false, 5000000L, Arrays.asList("west_coast", "sorcal"));
    db.collection("cities").document("LA").set(city);
    final city = City(
      name: "Los Angeles",
      state: "CA",
      country: "USA",
      capital: false,
      population: 5000000,
      regions: ["west_coast", "socal"],
    );
    final docRef = db
        .collection("cities")
        .withConverter(
          fromFirestore: City.fromFirestore,
          toFirestore: (City city, options) => city.toFirestore(),
        )
        .doc("LA");
    await docRef.set(city);
    City city =
        new City("Los Angeles", "CA", "USA", false, 3900000L, Arrays.asList("west_coast", "socal"));
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(city);
    // block on response if required
    System.out.println("Update time : " + future.get().getUpdateTime());
    city = City(name="Los Angeles", state="CA", country="USA")
    db.collection("cities").document("LA").set(city.to_dict())
    city = City(name="Los Angeles", state="CA", country="USA")
    await db.collection("cities").document("LA").set(city.to_dict())
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsEntity(ctx context.Context, client *firestore.Client) error {
    	city := City{
    		Name:    "Los Angeles",
    		Country: "USA",
    	}
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, city)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    
    // This isn't supported in PHP.
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
    	Name = "Los Angeles",
    	State = "CA",
    	Country = "USA",
    	Capital = false,
    	Population = 3900000L
    };
    docRef.SetAsync(city);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
        Name = "Los Angeles",
        State = "CA",
        Country = "USA",
        Capital = false,
        Population = 3900000L
    };
    await docRef.SetAsync(city);
    // This isn't supported in Ruby.

    یک سند اضافه کنید

    هنگامی که از set() برای ایجاد یک سند استفاده می کنید ، باید یک شناسه را برای ایجاد سند مشخص کنید ، همانطور که در مثال زیر نشان داده شده است:

    import { doc, setDoc } from "firebase/firestore"; 
    
    await setDoc(doc(db, "cities", "new-city-id"), data);
    db.collection("cities").doc("new-city-id").set(data);
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    db.collection("cities").document("new-city-id").setData(data)
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"new-city-id"]
        setData:data];
    db.collection("cities").document("new-city-id").set(data)
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").doc("new-city-id").set({"name": "Chicago"});
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").document("new-city-id").set(data)
    await db.collection("cities").document("new-city-id").set(data)
    db->Collection("cities").Document("SF").Set({/*some data*/});
    await db.collection('cities').doc('new-city-id').set(data);
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithID(ctx context.Context, client *firestore.Client) error {
    	var data = make(map[string]interface{})
    
    	_, err := client.Collection("cities").Doc("new-city-id").Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $db->collection('samples/php/cities')->document('new-city-id')->set($data);
    db.Collection("cities").Document("new-city-id").SetAsync(city);
    await db.Collection("cities").Document("new-city-id").SetAsync(city);
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.set data

    اگر یک شناسه معنی دار برای سند وجود نداشته باشد ، Cloud Firestore می تواند یک شناسه را برای شما ایجاد کند. می توانید روشهای add() زبان زیر را فراخوانی کنید:

    از روش addDoc() استفاده کنید:

    import { collection, addDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id.
    const docRef = await addDoc(collection(db, "cities"), {
      name: "Tokyo",
      country: "Japan"
    });
    console.log("Document written with ID: ", docRef.id);

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    db.collection("cities").add({
        name: "Tokyo",
        country: "Japan"
    })
    .then((docRef) => {
        console.log("Document written with ID: ", docRef.id);
    })
    .catch((error) => {
        console.error("Error adding document: ", error);
    });

    از روش addDocument() استفاده کنید:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Add a new document with a generated id.
    do {
      let ref = try await db.collection("cities").addDocument(data: [
        "name": "Tokyo",
        "country": "Japan"
      ])
      print("Document added with ID: \(ref.documentID)")
    } catch {
      print("Error adding document: \(error)")
    }

    از addDocumentWithData: روش:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Add a new document with a generated id.
    __block FIRDocumentReference *ref =
        [[self.db collectionWithPath:@"cities"] addDocumentWithData:@{
          @"name": @"Tokyo",
          @"country": @"Japan"
        } completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error adding document: %@", error);
          } else {
            NSLog(@"Document added with ID: %@", ref.documentID);
          }
        }];

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    val data = hashMapOf(
        "name" to "Tokyo",
        "country" to "Japan",
    )
    
    db.collection("cities")
        .add(data)
        .addOnSuccessListener { documentReference ->
            Log.d(TAG, "DocumentSnapshot written with ID: ${documentReference.id}")
        }
        .addOnFailureListener { e ->
            Log.w(TAG, "Error adding document", e)
        }

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    
    db.collection("cities")
            .add(data)
            .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                @Override
                public void onSuccess(DocumentReference documentReference) {
                    Log.d(TAG, "DocumentSnapshot written with ID: " + documentReference.getId());
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error adding document", e);
                }
            });

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    final data = {"name": "Tokyo", "country": "Japan"};
    
    db.collection("cities").add(data).then((documentSnapshot) =>
        print("Added Data with ID: ${documentSnapshot.id}"));

    از روش add() استفاده کنید:

    // Add document data with auto-generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    ApiFuture<DocumentReference> addedDocRef = db.collection("cities").add(data);
    System.out.println("Added document with ID: " + addedDocRef.get().getId());

    از روش add() استفاده کنید:

    city = {"name": "Tokyo", "country": "Japan"}
    update_time, city_ref = db.collection("cities").add(city)
    print(f"Added document with id {city_ref.id}")

    از روش add() استفاده کنید:

    city = City(name="Tokyo", state=None, country="Japan")
    await db.collection("cities").add(city.to_dict())

    از روش Add() استفاده کنید:

    db->Collection("cities").Add({/*some data*/});

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    const res = await db.collection('cities').add({
      name: 'Tokyo',
      country: 'Japan'
    });
    
    console.log('Added document with ID: ', res.id);

    از روش Add() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithoutID(ctx context.Context, client *firestore.Client) error {
    	_, _, err := client.Collection("cities").Add(ctx, map[string]interface{}{
    		"name":    "Tokyo",
    		"country": "Japan",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از روش add() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $data = [
        'name' => 'Tokyo',
        'country' => 'Japan'
    ];
    $addedDocRef = $db->collection('samples/php/cities')->add($data);
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());

    از روش AddAsync() استفاده کنید:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Tokyo" },
    	{ "Country", "Japan" }
    };
    db.Collection("cities").AddAsync(city).ContinueWithOnMainThread(task => {
    	DocumentReference addedDocRef = task.Result;
    	Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    });

    از روش AddAsync() استفاده کنید:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "Name", "Tokyo" },
        { "Country", "Japan" }
    };
    DocumentReference addedDocRef = await db.Collection("cities").AddAsync(city);
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);

    از روش add() استفاده کنید:

    data = {
      name:    "Tokyo",
      country: "Japan"
    }
    
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.add data
    puts "Added document with ID: #{added_doc_ref.document_id}."

    در بعضی موارد ، ایجاد یک مرجع سند با یک شناسه تولید شده به صورت خودکار می تواند مفید باشد ، سپس بعداً از مرجع استفاده کنید. برای این مورد استفاده ، می توانید به روش زیر با doc() تماس بگیرید:

    import { collection, doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id
    const newCityRef = doc(collection(db, "cities"));
    
    // later...
    await setDoc(newCityRef, data);
    // Add a new document with a generated id.
    var newCityRef = db.collection("cities").doc();
    
    // later...
    newCityRef.set(data);
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let newCityRef = db.collection("cities").document()
    
    // later...
    newCityRef.setData([
      // ...
    ])
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    FIRDocumentReference *newCityRef = [[self.db collectionWithPath:@"cities"] documentWithAutoID];
    // later...
    [newCityRef setData:@{ /* ... */ }];
    val data = HashMap<String, Any>()
    
    val newCityRef = db.collection("cities").document()
    
    // Later...
    newCityRef.set(data)
    Map<String, Object> data = new HashMap<>();
    
    DocumentReference newCityRef = db.collection("cities").document();
    
    // Later...
    newCityRef.set(data);
    // Add a new document with a generated id.
    final data = <String, dynamic>{};
    
    final newCityRef = db.collection("cities").doc();
    
    // Later...
    newCityRef.set(data);
    
    // Add document data after generating an id.
    DocumentReference addedDocRef = db.collection("cities").document();
    System.out.println("Added document with ID: " + addedDocRef.getId());
    
    // later...
    ApiFuture<WriteResult> writeResult = addedDocRef.set(data);
    new_city_ref = db.collection("cities").document()
    
    # later...
    new_city_ref.set(
        {
            # ...
        }
    )
    new_city_ref = db.collection("cities").document()
    
    # later...
    await new_city_ref.set(
        {
            # ...
        }
    )
    DocumentReference new_city_ref = db->Collection("cities").Document();
    const newCityRef = db.collection('cities').doc();
    
    // Later...
    const res = await newCityRef.set({
      // ...
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAfterAutoGeneratedID(ctx context.Context, client *firestore.Client) error {
    	data := City{
    		Name:    "Sydney",
    		Country: "Australia",
    	}
    
    	ref := client.Collection("cities").NewDoc()
    
    	// later...
    	_, err := ref.Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $addedDocRef = $db->collection('samples/php/cities')->newDocument();
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());
    $addedDocRef->set($data);
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    addedDocRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log(String.Format(
    		"Added data to the {0} document in the cities collection.", addedDocRef.Id));
    });
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);
    await addedDocRef.SetAsync(city);
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.doc
    puts "Added document with ID: #{added_doc_ref.document_id}."
    
    added_doc_ref.set data

    در باطن ، .add(...) و .doc().set(...) معادل هستند ، بنابراین می توانید از هر گزینه استفاده کنید.

    یک سند را به روز کنید

    برای به روزرسانی برخی از زمینه های یک سند بدون نوشتن کل سند ، از روش های update() استفاده کنید:

    از روش updateDoc() استفاده کنید:

    import { doc, updateDoc } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Set the "capital" field of the city 'DC'
    await updateDoc(washingtonRef, {
      capital: true
    });

    از روش update() استفاده کنید:

    var washingtonRef = db.collection("cities").doc("DC");
    
    // Set the "capital" field of the city 'DC'
    return washingtonRef.update({
        capital: true
    })
    .then(() => {
        console.log("Document successfully updated!");
    })
    .catch((error) => {
        // The document probably doesn't exist.
        console.error("Error updating document: ", error);
    });

    از روش updateData() استفاده کنید:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Set the "capital" field of the city 'DC'
    do {
      try await washingtonRef.updateData([
        "capital": true
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }

    از روش updateData: روش:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    // Set the "capital" field of the city
    [washingtonRef updateData:@{
      @"capital": @YES
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];

    از روش update() استفاده کنید:

    val washingtonRef = db.collection("cities").document("DC")
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
        .update("capital", true)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully updated!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error updating document", e) }

    از روش update() استفاده کنید:

    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
            .update("capital", true)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully updated!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error updating document", e);
                }
            });

    از روش update() استفاده کنید:

    final washingtonRef = db.collection("cites").doc("DC");
    washingtonRef.update({"capital": true}).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));

    از روش update() استفاده کنید:

    // Update an existing document
    DocumentReference docRef = db.collection("cities").document("DC");
    
    // (async) Update one field
    ApiFuture<WriteResult> future = docRef.update("capital", true);
    
    // ...
    WriteResult result = future.get();
    System.out.println("Write result: " + result);

    از روش update() استفاده کنید:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    city_ref.update({"capital": True})

    از روش update() استفاده کنید:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    await city_ref.update({"capital": True})

    از روش Update() استفاده کنید:

    DocumentReference washington_ref = db->Collection("cities").Document("DC");
    // Set the "capital" field of the city "DC".
    washington_ref.Update({{"capital", FieldValue::Boolean(true)}});

    از روش update() استفاده کنید:

    const cityRef = db.collection('cities').doc('DC');
    
    // Set the 'capital' field of the city
    const res = await cityRef.update({capital: true});

    از روش Update() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDoc(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("cities").Doc("DC").Update(ctx, []firestore.Update{
    		{
    			Path:  "capital",
    			Value: true,
    		},
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از روش update() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    $cityRef->update([
        ['path' => 'capital', 'value' => true]
    ]);

    از روش UpdateAsync() استفاده کنید:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
    	{ "Capital", false }
    };
    
    cityRef.UpdateAsync(updates).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the Capital field of the new-city-id document in the cities collection.");
    });
    // You can also update a single field with: cityRef.UpdateAsync("Capital", false);

    از روش UpdateAsync() استفاده کنید:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Capital", false }
    };
    await cityRef.UpdateAsync(updates);
    
    // You can also update a single field with: await cityRef.UpdateAsync("Capital", false);

    از روش update() استفاده کنید:

    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ capital: true })

    مهر زمان سرور

    می توانید یک فیلد را در سند خود در یک Timestamp سرور تنظیم کنید که هنگام دریافت سرور به روزرسانی را ردیابی می کند.

    import { updateDoc, serverTimestamp } from "firebase/firestore";
    
    const docRef = doc(db, 'objects', 'some-id');
    
    // Update the timestamp field with the value from the server
    const updateTimestamp = await updateDoc(docRef, {
        timestamp: serverTimestamp()
    });
    var docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    var updateTimestamp = docRef.update({
        timestamp: firebase.firestore.FieldValue.serverTimestamp()
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    do {
      try await db.collection("objects").document("some-id").updateData([
        "lastUpdated": FieldValue.serverTimestamp(),
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    [[[self.db collectionWithPath:@"objects"] documentWithPath:@"some-id"] updateData:@{
      @"lastUpdated": [FIRFieldValue fieldValueForServerTimestamp]
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // If you're using custom Kotlin objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    val docRef = db.collection("objects").document("some-id")
    
    // Update the timestamp field with the value from the server
    val updates = hashMapOf<String, Any>(
        "timestamp" to FieldValue.serverTimestamp(),
    )
    
    docRef.update(updates).addOnCompleteListener { }
    // If you're using custom Java objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    DocumentReference docRef = db.collection("objects").document("some-id");
    
    // Update the timestamp field with the value from the server
    Map<String,Object> updates = new HashMap<>();
    updates.put("timestamp", FieldValue.serverTimestamp());
    
    docRef.update(updates).addOnCompleteListener(new OnCompleteListener<Void>() {
        // ...
        // ...
    final docRef = db.collection("objects").doc("some-id");
    final updates = <String, dynamic>{
      "timestamp": FieldValue.serverTimestamp(),
    };
    
    docRef.update(updates).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));
    DocumentReference docRef = db.collection("objects").document("some-id");
    // Update the timestamp field with the value from the server
    ApiFuture<WriteResult> writeResult = docRef.update("timestamp", FieldValue.serverTimestamp());
    System.out.println("Update time : " + writeResult.get());
    city_ref = db.collection("objects").document("some-id")
    city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    city_ref = db.collection("objects").document("some-id")
    await city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    DocumentReference doc_ref = db->Collection("objects").Document("some-id");
    doc_ref.Update({{"timestamp", FieldValue::ServerTimestamp()}})
        .OnCompletion([](const Future<void>& future) {
          // ...
        });
    // Create a document reference
    const docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    const res = await docRef.update({
      timestamp: FieldValue.serverTimestamp()
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocServerTimestamp(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("objects").Doc("some-id").Set(ctx, map[string]interface{}{
    		"timestamp": firestore.ServerTimestamp,
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $docRef = $db->collection('samples/php/objects')->document('some-id');
    $docRef->update([
        ['path' => 'timestamp', 'value' => FieldValue::serverTimestamp()]
    ]);
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    cityRef.UpdateAsync("Timestamp", FieldValue.ServerTimestamp)
    	.ContinueWithOnMainThread(task => {
    		Debug.Log(
    			"Updated the Timestamp field of the new-city-id document in the cities "
    			+ "collection.");
    	});
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    await cityRef.UpdateAsync("Timestamp", Timestamp.GetCurrentTimestamp());
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.update({ timestamp: firestore.field_server_time })

    هنگام به روزرسانی چندین قسمت Timestamp در داخل یک معامله ، هر فیلد همان مقدار Timestamp سرور را دریافت می کند.

    زمینه ها را در اشیاء تو در تو به روز کنید

    اگر سند شما حاوی اشیاء تو در تو است ، می توانید هنگام تماس با update() از Notation DOT برای استفاده از قسمت های مرجع در داخل سند استفاده کنید:

    import { doc, setDoc, updateDoc } from "firebase/firestore"; 
    
    // Create an initial document to update.
    const frankDocRef = doc(db, "users", "frank");
    await setDoc(frankDocRef, {
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    await updateDoc(frankDocRef, {
        "age": 13,
        "favorites.color": "Red"
    });
    // Create an initial document to update.
    var frankDocRef = db.collection("users").doc("frank");
    frankDocRef.set({
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    db.collection("users").doc("frank").update({
        "age": 13,
        "favorites.color": "Red"
    })
    .then(() => {
        console.log("Document successfully updated!");
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Create an initial document to update.
    let frankDocRef = db.collection("users").document("frank")
    do {
      try await frankDocRef.setData([
        "name": "Frank",
        "favorites": [ "food": "Pizza", "color": "Blue", "subject": "recess" ],
        "age": 12
      ])
    
      // To update age and favorite color:
      try await frankDocRef.updateData([
        "age": 13,
        "favorites.color": "Red"
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Create an initial document to update.
    FIRDocumentReference *frankDocRef =
        [[self.db collectionWithPath:@"users"] documentWithPath:@"frank"];
    [frankDocRef setData:@{
      @"name": @"Frank",
      @"favorites": @{
        @"food": @"Pizza",
        @"color": @"Blue",
        @"subject": @"recess"
      },
      @"age": @12
    }];
    // To update age and favorite color:
    [frankDocRef updateData:@{
      @"age": @13,
      @"favorites.color": @"Red",
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
        .update(
            mapOf(
                "age" to 13,
                "favorites.color" to "Red",
            ),
        )
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
            .update(
                    "age", 13,
                    "favorites.color", "Red"
            );
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    db
        .collection("users")
        .doc("frank")
        .update({"age": 13, "favorites.color": "Red"});
    // Create an initial document to update
    DocumentReference frankDocRef = db.collection("users").document("frank");
    Map<String, Object> initialData = new HashMap<>();
    initialData.put("name", "Frank");
    initialData.put("age", 12);
    
    Map<String, Object> favorites = new HashMap<>();
    favorites.put("food", "Pizza");
    favorites.put("color", "Blue");
    favorites.put("subject", "Recess");
    initialData.put("favorites", favorites);
    
    ApiFuture<WriteResult> initialResult = frankDocRef.set(initialData);
    // Confirm that data has been successfully saved by blocking on the operation
    initialResult.get();
    
    // Update age and favorite color
    Map<String, Object> updates = new HashMap<>();
    updates.put("age", 13);
    updates.put("favorites.color", "Red");
    
    // Async update document
    ApiFuture<WriteResult> writeResult = frankDocRef.update(updates);
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    frank_ref.update({"age": 13, "favorites.color": "Red"})
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    await frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    await frank_ref.update({"age": 13, "favorites.color": "Red"})
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db->Collection("users").Document("frank").Update({
        {"age", FieldValue::Integer(13)},
        {"favorites.color", FieldValue::String("red")},
    });
    const initialData = {
      name: 'Frank',
      age: 12,
      favorites: {
        food: 'Pizza',
        color: 'Blue',
        subject: 'recess'
      }
    };
    
    // ...
    const res = await db.collection('users').doc('Frank').update({
      age: 13,
      'favorites.color': 'Red'
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocNested(ctx context.Context, client *firestore.Client) error {
    	initialData := map[string]interface{}{
    		"name": "Frank",
    		"age":  12,
    		"favorites": map[string]interface{}{
    			"food":    "Pizza",
    			"color":   "Blue",
    			"subject": "recess",
    		},
    	}
    
    	// ...
    
    	_, err := client.Collection("users").Doc("frank").Set(ctx, map[string]interface{}{
    		"age": 13,
    		"favorites": map[string]interface{}{
    			"color": "Red",
    		},
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    // Create an initial document to update
    $frankRef = $db->collection('samples/php/users')->document('frank');
    $frankRef->set([
        'first' => 'Frank',
        'last' => 'Franklin',
        'favorites' => ['food' => 'Pizza', 'color' => 'Blue', 'subject' => 'Recess'],
        'age' => 12
    ]);
    
    // Update age and favorite color
    $frankRef->update([
        ['path' => 'age', 'value' => 13],
        ['path' => 'favorites.color', 'value' => 'Red']
    ]);
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
    	{ "Name", "Frank" },
    	{ "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
    	{ "Food", "Pizza" },
    	{ "Color", "Blue" },
    	{ "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    frankDocRef.SetAsync(initialData).ContinueWithOnMainThread(task => {
    
    	// Update age and favorite color
    	Dictionary<string, object> updates = new Dictionary<string, object>
    	{
    		{ "Age", 13 },
    		{ "Favorites.Color", "Red" },
    	};
    
    	// Asynchronously update the document
    	return frankDocRef.UpdateAsync(updates);
    }).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the age and favorite color fields of the Frank document in "
    		+ "the users collection.");
    });
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
        { "Name", "Frank" },
        { "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
        { "Food", "Pizza" },
        { "Color", "Blue" },
        { "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    await frankDocRef.SetAsync(initialData);
    
    // Update age and favorite color
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Age", 13 },
        { "Favorites.Color", "Red" },
    };
    
    // Asynchronously update the document
    await frankDocRef.UpdateAsync(updates);
    # Create an initial document to update
    frank_ref = firestore.doc "#{collection_path}/frank"
    frank_ref.set(
      {
        name:      "Frank",
        favorites: {
          food:    "Pizza",
          color:   "Blue",
          subject: "Recess"
        },
        age:       12
      }
    )
    
    # Update age and favorite color
    frank_ref.update({ age: 13, "favorites.color": "Red" })

    Dot Notation به شما امکان می دهد بدون نوشتن سایر زمینه های تو در تو ، یک زمینه تو در تو را به روز کنید. اگر یک قسمت تو در تو را بدون نماد نقطه به روز کنید ، همانطور که در مثال زیر نشان داده شده است ، کل قسمت نقشه را بازنویسی خواهید کرد:

    وب
    // Create our initial doc
    db.collection("users").doc("frank").set({
      name: "Frank",
      favorites: {
        food: "Pizza",
        color: "Blue",
        subject: "Recess"
      },
      age: 12
    }).then(function() {
      console.log("Frank created");
    });
    
    // Update the doc without using dot notation.
    // Notice the map value for favorites.
    db.collection("users").doc("frank").update({
      favorites: {
        food: "Ice Cream"
      }
    }).then(function() {
      console.log("Frank food updated");
    });
    
    /*
    Ending State, favorite.color and favorite.subject are no longer present:
    /users
        /frank
            {
                name: "Frank",
                favorites: {
                    food: "Ice Cream",
                },
                age: 12
            }
     */

    عناصر را در یک آرایه به روز کنید

    اگر سند شما حاوی یک قسمت آرایه است ، می توانید از arrayUnion() و arrayRemove() برای اضافه کردن و حذف عناصر استفاده کنید. arrayUnion() عناصر را به یک آرایه اضافه می کند اما فقط عناصری که از قبل موجود نیستند. arrayRemove() تمام نمونه های هر عنصر معین را حذف می کند.

    import { doc, updateDoc, arrayUnion, arrayRemove } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically add a new region to the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayRemove("east_coast")
    });
    var washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayRemove("east_coast")
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayUnion(["greater_virginia"])
    ])
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayRemove(["east_coast"])
    ])
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically add a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayUnion:@[@"greater_virginia"]]
    }];
    
    // Atomically remove a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayRemove:@[@"east_coast"]]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"))
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    final washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayUnion(["greater_virginia"]),
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayRemove(["east_coast"]),
    });
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    ApiFuture<WriteResult> arrayUnion =
        washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    System.out.println("Update time : " + arrayUnion.get());
    
    // Atomically remove a region from the "regions" array field.
    ApiFuture<WriteResult> arrayRm =
        washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    System.out.println("Update time : " + arrayRm.get());
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically add a new region to the "regions" array field.
    const unionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('greater_virginia')
    });
    // Atomically remove a region from the "regions" array field.
    const removeRes = await washingtonRef.update({
      regions: FieldValue.arrayRemove('east_coast')
    });
    
    // To add or remove multiple items, pass multiple arguments to arrayUnion/arrayRemove
    const multipleUnionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('south_carolina', 'texas')
      // Alternatively, you can use spread operator in ES6 syntax
      // const newRegions = ['south_carolina', 'texas']
      // regions: FieldValue.arrayUnion(...newRegions)
    });
    // Not supported yet

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically add a new region to the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayUnion(['greater_virginia'])]
    ]);
    
    // Atomically remove a region from the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayRemove(['east_coast'])]
    ]);
    // This is not yet supported in the Unity SDK
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically add a new region to the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayRemove("east_coast"));
    // Not supported yet

    مقدار عددی را افزایش دهید

    همانطور که در مثال زیر نشان داده شده است می توانید مقدار میدان عددی را افزایش یا کاهش دهید. یک عمل افزایش مقدار فعلی یک میدان را با مقدار مشخص افزایش یا کاهش می دهد.

    import { doc, updateDoc, increment } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically increment the population of the city by 50.
    await updateDoc(washingtonRef, {
        population: increment(50)
    });
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update({
        population: firebase.firestore.FieldValue.increment(50)
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    washingtonRef.updateData([
      "population": FieldValue.increment(Int64(50))
    ])
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    [washingtonRef updateData:@{
      @"population": [FIRFieldValue fieldValueForIntegerIncrement:50]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50));
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update(
      {"population": FieldValue.increment(50)},
    );
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    final ApiFuture<WriteResult> updateFuture =
        washingtonRef.update("population", FieldValue.increment(50));
    washington_ref = db.collection("cities").document("DC")
    
    washington_ref.update({"population": firestore.Increment(50)})
    washington_ref = db.collection("cities").document("DC")
    
    await washington_ref.update({"population": firestore.Increment(50)})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    const res = await washingtonRef.update({
      population: FieldValue.increment(50)
    });
    import (
    	"context"
    	"fmt"
    
    	"cloud.google.com/go/firestore"
    )
    
    // updateDocumentIncrement increments the population of the city document in the
    // cities collection by 50.
    func updateDocumentIncrement(projectID, city string) error {
    	// projectID := "my-project"
    
    	ctx := context.Background()
    
    	client, err := firestore.NewClient(ctx, projectID)
    	if err != nil {
    		return fmt.Errorf("firestore.NewClient: %w", err)
    	}
    	defer client.Close()
    
    	dc := client.Collection("cities").Doc(city)
    	_, err = dc.Update(ctx, []firestore.Update{
    		{Path: "population", Value: firestore.Increment(50)},
    	})
    	if err != nil {
    		return fmt.Errorf("Update: %w", err)
    	}
    
    	return nil
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically increment the population of the city by 50.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::increment(50)]
    ]);
    // This is not yet supported in the Unity SDK.
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically increment the population of the city by 50.
    await washingtonRef.UpdateAsync("Regions", FieldValue.Increment(50));
    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ population: firestore.field_increment(50) })

    عملیات افزایش برای اجرای پیشخوان ها مفید است. توجه داشته باشید که به روزرسانی یک سند خیلی سریع می تواند منجر به مشاجره یا خطاها شود . اگر نیاز دارید پیشخوان خود را با نرخ بسیار بالا به روز کنید ، به صفحه پیشخوان های توزیع شده مراجعه کنید.

    ،

    این سند نحوه تنظیم ، افزودن یا به روزرسانی اسناد جداگانه در Cloud Firestore را توضیح می دهد. برای نوشتن داده ها به صورت عمده ، به معاملات و نوشتن های Batched مراجعه کنید.

    نمای کلی

    شما می توانید به یکی از روشهای زیر داده ها را به Cloud Firestore بنویسید:

    • داده های یک سند را در یک مجموعه تنظیم کنید ، و صریحاً یک شناسه سند را مشخص کنید.
    • یک سند جدید به یک مجموعه اضافه کنید. در این حالت ، Cloud Firestore به طور خودکار شناسه سند را تولید می کند.
    • یک سند خالی با یک شناسه به طور خودکار ایجاد کنید و بعداً داده ها را به آن اختصاص دهید.

    قبل از شروع

    قبل از اینکه بتوانید Cloud Firestore برای تنظیم ، افزودن یا به روزرسانی داده ها آغاز کنید ، باید مراحل زیر را انجام دهید:

    • یک پایگاه داده Cloud Firestore ایجاد کنید. برای اطلاعات بیشتر ، به شروع کار با Cloud Firestore مراجعه کنید
    • اگر از کتابخانه های وب یا مشتری تلفن همراه استفاده می کنید ، با قوانین امنیتی تأیید کنید. برای اطلاعات بیشتر ، به شروع با قوانین امنیتی مراجعه کنید.
    • اگر از کتابخانه های مشتری سرور یا API REST استفاده می کنید ، با هویت و مدیریت دسترسی (IAM) تأیید کنید. برای اطلاعات بیشتر ، به امنیت برای کتابخانه های مشتری سرور مراجعه کنید.

    Cloud Firestore را اولیه کنید

    نمونه ای از Cloud Firestore را آغاز کنید:

    import { initializeApp } from "firebase/app";
    import { getFirestore } from "firebase/firestore";
    
    // TODO: Replace the following with your app's Firebase project configuration
    // See: https://support.google.com/firebase/answer/7015592
    const firebaseConfig = {
        FIREBASE_CONFIGURATION
    };
    
    // Initialize Firebase
    const app = initializeApp(firebaseConfig);
    
    
    // Initialize Cloud Firestore and get a reference to the service
    const db = getFirestore(app);
    

    FIREBASE_CONFIGURATION با firebaseConfig برنامه وب خود جایگزین کنید.

    برای ادامه داده ها وقتی دستگاه اتصال خود را از دست می دهد ، مستندات داده های آفلاین را مشاهده کنید.

    import firebase from "firebase/app";
    import "firebase/firestore";
    
    // TODO: Replace the following with your app's Firebase project configuration
    // See: https://support.google.com/firebase/answer/7015592
    const firebaseConfig = {
        FIREBASE_CONFIGURATION
    };
    
    // Initialize Firebase
    firebase.initializeApp(firebaseConfig);
    
    
    // Initialize Cloud Firestore and get a reference to the service
    const db = firebase.firestore();
    

    FIREBASE_CONFIGURATION با firebaseConfig برنامه وب خود جایگزین کنید.

    برای ادامه داده ها وقتی دستگاه اتصال خود را از دست می دهد ، مستندات داده های آفلاین را مشاهده کنید.

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    import FirebaseCore
    import FirebaseFirestore
    FirebaseApp.configure()
    
    let db = Firestore.firestore()
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    @import FirebaseCore;
    @import FirebaseFirestore;
    
    // Use Firebase library to configure APIs
    [FIRApp configure];
      
    FIRFirestore *defaultFirestore = [FIRFirestore firestore];
    // Access a Cloud Firestore instance from your Activity
    val db = Firebase.firestore
    // Access a Cloud Firestore instance from your Activity
    FirebaseFirestore db = FirebaseFirestore.getInstance();
    db = FirebaseFirestore.instance;
    Cloud Firestore SDK بسته به محیط شما به روش های مختلفی آغاز می شود. در زیر متداول ترین روش ها وجود دارد. برای یک مرجع کامل ، به SDK Admin SDK اولیه مراجعه کنید.
  • اولیه سازی در Google Cloud
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use the application default credentials
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault();
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .setProjectId(projectId)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • اولیه را روی سرور خود خود قرار دهید

    برای استفاده از Firebase Admin SDK در سرور خود ، از یک حساب خدمات استفاده کنید.

    در کنسول Google Cloud به IAM & Admin> Service Accounts بروید. یک کلید خصوصی جدید ایجاد کنید و پرونده JSON را ذخیره کنید. سپس از پرونده برای اولیه سازی SDK استفاده کنید:

    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use a service account
    InputStream serviceAccount = new FileInputStream("path/to/serviceAccount.json");
    GoogleCredentials credentials = GoogleCredentials.fromStream(serviceAccount);
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • Cloud Firestore SDK بسته به محیط شما به روش های مختلفی آغاز می شود. در زیر متداول ترین روش ها وجود دارد. برای یک مرجع کامل ، به SDK Admin SDK اولیه مراجعه کنید.
  • اولیه سازی در Google Cloud
    import firebase_admin
    from firebase_admin import firestore
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore.client()

    یک اعتبار پیش فرض برنامه موجود نیز می تواند برای اولیه سازی SDK استفاده شود.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore.client()
  • اولیه را روی سرور خود خود قرار دهید

    برای استفاده از Firebase Admin SDK در سرور خود ، از یک حساب خدمات استفاده کنید.

    در کنسول Google Cloud به IAM & Admin> Service Accounts بروید. یک کلید خصوصی جدید ایجاد کنید و پرونده JSON را ذخیره کنید. سپس از پرونده برای اولیه سازی SDK استفاده کنید:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore.client()
  • Cloud Firestore SDK بسته به محیط شما به روش های مختلفی آغاز می شود. در زیر متداول ترین روش ها وجود دارد. برای یک مرجع کامل ، به SDK Admin SDK اولیه مراجعه کنید.
  • اولیه سازی در Google Cloud
    import firebase_admin
    from firebase_admin import firestore_async
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore_async.client()

    یک اعتبار پیش فرض برنامه موجود نیز می تواند برای اولیه سازی SDK استفاده شود.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore_async.client()
  • اولیه را روی سرور خود خود قرار دهید

    برای استفاده از Firebase Admin SDK در سرور خود ، از یک حساب خدمات استفاده کنید.

    در کنسول Google Cloud به IAM & Admin> Service Accounts بروید. یک کلید خصوصی جدید ایجاد کنید و پرونده JSON را ذخیره کنید. سپس از پرونده برای اولیه سازی SDK استفاده کنید:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore_async.client()
  • // Make sure the call to `Create()` happens some time before you call Firestore::GetInstance().
    App::Create();
    Firestore* db = Firestore::GetInstance();
    Cloud Firestore SDK بسته به محیط شما به روش های مختلفی آغاز می شود. در زیر متداول ترین روش ها وجود دارد. برای یک مرجع کامل ، به SDK Admin SDK اولیه مراجعه کنید.
    • اولیه را بر روی Cloud Functions آغاز کنید
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp();
      
      const db = getFirestore();
      
    • اولیه سازی در Google Cloud
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp({
        credential: applicationDefault()
      });
      
      const db = getFirestore();
    • اولیه را روی سرور خود خود قرار دهید

      برای استفاده از Firebase Admin SDK در سرور خود (یا هر محیط Node.js دیگر) ، از یک حساب سرویس استفاده کنید. در کنسول Google Cloud به IAM & Admin> Service Accounts بروید. یک کلید خصوصی جدید ایجاد کنید و پرونده JSON را ذخیره کنید. سپس از پرونده برای اولیه سازی SDK استفاده کنید:

      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      const serviceAccount = require('./path/to/serviceAccountKey.json');
      
      initializeApp({
        credential: cert(serviceAccount)
      });
      
      const db = getFirestore();
      
    Cloud Firestore SDK بسته به محیط شما به روش های مختلفی آغاز می شود. در زیر متداول ترین روش ها وجود دارد. برای یک مرجع کامل ، به SDK Admin SDK اولیه مراجعه کنید.
  • اولیه سازی در Google Cloud
    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use the application default credentials
    ctx := context.Background()
    conf := &firebase.Config{ProjectID: projectID}
    app, err := firebase.NewApp(ctx, conf)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • اولیه را روی سرور خود خود قرار دهید

    برای استفاده از Firebase Admin SDK در سرور خود ، از یک حساب خدمات استفاده کنید.

    در کنسول Google Cloud به IAM & Admin> Service Accounts بروید. یک کلید خصوصی جدید ایجاد کنید و پرونده JSON را ذخیره کنید. سپس از پرونده برای اولیه سازی SDK استفاده کنید:

    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use a service account
    ctx := context.Background()
    sa := option.WithCredentialsFile("path/to/serviceAccount.json")
    app, err := firebase.NewApp(ctx, nil, sa)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    use Google\Cloud\Firestore\FirestoreClient;
    
    /**
     * Initialize Cloud Firestore with default project ID.
     */
    function setup_client_create(string $projectId = null)
    {
        // Create the Cloud Firestore client
        if (empty($projectId)) {
            // The `projectId` parameter is optional and represents which project the
            // client will act on behalf of. If not supplied, the client falls back to
            // the default project inferred from the environment.
            $db = new FirestoreClient();
            printf('Created Cloud Firestore client with default project ID.' . PHP_EOL);
        } else {
            $db = new FirestoreClient([
                'projectId' => $projectId,
            ]);
            printf('Created Cloud Firestore client with project ID: %s' . PHP_EOL, $projectId);
        }
    }
    using Firebase.Firestore;
    using Firebase.Extensions;
    FirebaseFirestore db = FirebaseFirestore.DefaultInstance;

    سی شارپ

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    FirestoreDb db = FirestoreDb.Create(project);
    Console.WriteLine("Created Cloud Firestore client with project ID: {0}", project);
    require "google/cloud/firestore"
    
    # The `project_id` parameter is optional and represents which project the
    # client will act on behalf of. If not supplied, the client falls back to the
    # default project inferred from the environment.
    firestore = Google::Cloud::Firestore.new project_id: project_id
    
    puts "Created Cloud Firestore client with given project ID."

    یک سند را تنظیم کنید

    برای ایجاد یا رونویسی یک سند واحد ، از روشهای set() خاص زبان استفاده کنید:

    از روش setDoc() استفاده کنید:

    import { doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document in collection "cities"
    await setDoc(doc(db, "cities", "LA"), {
      name: "Los Angeles",
      state: "CA",
      country: "USA"
    });

    از روش set() استفاده کنید:

    // Add a new document in collection "cities"
    db.collection("cities").doc("LA").set({
        name: "Los Angeles",
        state: "CA",
        country: "USA"
    })
    .then(() => {
        console.log("Document successfully written!");
    })
    .catch((error) => {
        console.error("Error writing document: ", error);
    });

    از روش setData() استفاده کنید:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Add a new document in collection "cities"
    do {
      try await db.collection("cities").document("LA").setData([
        "name": "Los Angeles",
        "state": "CA",
        "country": "USA"
      ])
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }

    از setData: روش:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Add a new document in collection "cities"
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"LA"] setData:@{
      @"name": @"Los Angeles",
      @"state": @"CA",
      @"country": @"USA"
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error writing document: %@", error);
      } else {
        NSLog(@"Document successfully written!");
      }
    }];

    از روش set() استفاده کنید:

    val city = hashMapOf(
        "name" to "Los Angeles",
        "state" to "CA",
        "country" to "USA",
    )
    
    db.collection("cities").document("LA")
        .set(city)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }

    از روش set() استفاده کنید:

    Map<String, Object> city = new HashMap<>();
    city.put("name", "Los Angeles");
    city.put("state", "CA");
    city.put("country", "USA");
    
    db.collection("cities").document("LA")
            .set(city)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });

    از روش set() استفاده کنید:

    final city = <String, String>{
      "name": "Los Angeles",
      "state": "CA",
      "country": "USA"
    };
    
    db
        .collection("cities")
        .doc("LA")
        .set(city)
        .onError((e, _) => print("Error writing document: $e"));

    از روش set() استفاده کنید:

    // Create a Map to store the data we want to set
    Map<String, Object> docData = new HashMap<>();
    docData.put("name", "Los Angeles");
    docData.put("state", "CA");
    docData.put("country", "USA");
    docData.put("regions", Arrays.asList("west_coast", "socal"));
    // Add a new document (asynchronously) in collection "cities" with id "LA"
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(docData);
    // ...
    // future.get() blocks on response
    System.out.println("Update time : " + future.get().getUpdateTime());

    از روش set() استفاده کنید:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    db.collection("cities").document("LA").set(data)

    از روش set() استفاده کنید:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    await db.collection("cities").document("LA").set(data)

    از روش Set() استفاده کنید:

    // Add a new document in collection 'cities'
    db->Collection("cities")
        .Document("LA")
        .Set({{"name", FieldValue::String("Los Angeles")},
              {"state", FieldValue::String("CA")},
              {"country", FieldValue::String("USA")}})
        .OnCompletion([](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });

    از روش set() استفاده کنید:

    const data = {
      name: 'Los Angeles',
      state: 'CA',
      country: 'USA'
    };
    
    // Add a new document in collection "cities" with ID 'LA'
    const res = await db.collection('cities').doc('LA').set(data);

    از روش Set() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsMap(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, map[string]interface{}{
    		"name":    "Los Angeles",
    		"state":   "CA",
    		"country": "USA",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از روش set() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $data = [
        'name' => 'Los Angeles',
        'state' => 'CA',
        'country' => 'USA'
    ];
    $db->collection('samples/php/cities')->document('LA')->set($data);

    از روش SetAsync() استفاده کنید:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Los Angeles" },
    	{ "State", "CA" },
    	{ "Country", "USA" }
    };
    docRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log("Added data to the LA document in the cities collection.");
    });

    از روش SetAsync() استفاده کنید:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "name", "Los Angeles" },
        { "state", "CA" },
        { "country", "USA" }
    };
    await docRef.SetAsync(city);

    از روش set() استفاده کنید:

    city_ref = firestore.doc "#{collection_path}/LA"
    
    data = {
      name:    "Los Angeles",
      state:   "CA",
      country: "USA"
    }
    
    city_ref.set data

    اگر سند وجود نداشته باشد ، ایجاد می شود. اگر این سند وجود داشته باشد ، محتوای آن با داده های تازه ارائه شده رونویسی می شود ، مگر اینکه مشخص کنید که داده ها باید در سند موجود ادغام شوند ، به شرح زیر:

    import { doc, setDoc } from "firebase/firestore"; 
    
    const cityRef = doc(db, 'cities', 'BJ');
    setDoc(cityRef, { capital: true }, { merge: true });
    var cityRef = db.collection('cities').doc('BJ');
    
    var setWithMerge = cityRef.set({
        capital: true
    }, { merge: true });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Update one field, creating the document if it does not exist.
    db.collection("cities").document("BJ").setData([ "capital": true ], merge: true)
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Write to the document reference, merging data with existing
    // if the document already exists
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"BJ"]
         setData:@{ @"capital": @YES }
         merge:YES
         completion:^(NSError * _Nullable error) {
           // ...
         }];
    // Update one field, creating the document if it does not already exist.
    val data = hashMapOf("capital" to true)
    
    db.collection("cities").document("BJ")
        .set(data, SetOptions.merge())
    // Update one field, creating the document if it does not already exist.
    Map<String, Object> data = new HashMap<>();
    data.put("capital", true);
    
    db.collection("cities").document("BJ")
            .set(data, SetOptions.merge());
    // Update one field, creating the document if it does not already exist.
    final data = {"capital": true};
    
    db.collection("cities").doc("BJ").set(data, SetOptions(merge: true));
    // asynchronously update doc, create the document if missing
    Map<String, Object> update = new HashMap<>();
    update.put("capital", true);
    
    ApiFuture<WriteResult> writeResult =
        db.collection("cities").document("BJ").set(update, SetOptions.merge());
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    city_ref = db.collection("cities").document("BJ")
    
    city_ref.set({"capital": True}, merge=True)
    city_ref = db.collection("cities").document("BJ")
    
    await city_ref.set({"capital": True}, merge=True)
    db->Collection("cities").Document("BJ").Set(
        {{"capital", FieldValue::Boolean(true)}}, SetOptions::Merge());
    const cityRef = db.collection('cities').doc('BJ');
    
    const res = await cityRef.set({
      capital: true
    }, { merge: true });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocCreateIfMissing(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("BJ").Set(ctx, map[string]interface{}{
    		"capital": true,
    	}, firestore.MergeAll)
    
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('BJ');
    $cityRef->set([
        'capital' => true
    ], ['merge' => true]);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
    	{ "capital", false }
    };
    docRef.SetAsync(update, SetOptions.MergeAll);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
        { "capital", false }
    };
    await docRef.SetAsync(update, SetOptions.MergeAll);
    city_ref = firestore.doc "#{collection_path}/LA"
    city_ref.set({ capital: false }, merge: true)

    اگر مطمئن نیستید که آیا این سند وجود دارد ، گزینه ادغام داده های جدید را با هر سند موجود برای جلوگیری از رونویسی کل اسناد منتقل کنید. برای اسنادی که حاوی نقشه ها هستند ، اگر مجموعه ای را با فیلدی که شامل نقشه خالی است مشخص کنید ، قسمت نقشه سند هدف رونویسی می شود.

    انواع داده ها

    Cloud Firestore به شما امکان می دهد انواع مختلفی از داده ها را در داخل یک سند بنویسید ، از جمله رشته ها ، بول ها ، شماره ها ، تاریخ ها ، آرایه ها و اشیاء توخالی. Cloud Firestore همیشه بدون توجه به نوع شماره ای که در کد خود استفاده می کنید ، اعداد را به عنوان دو برابر ذخیره می کند.

    import { doc, setDoc, Timestamp } from "firebase/firestore"; 
    
    const docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    await setDoc(doc(db, "data", "one"), docData);
    var docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: firebase.firestore.Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    db.collection("data").doc("one").set(docData).then(() => {
        console.log("Document successfully written!");
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let docData: [String: Any] = [
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp(date: Date()),
      "arrayExample": [5, true, "hello"],
      "nullExample": NSNull(),
      "objectExample": [
        "a": 5,
        "b": [
          "nested": "foo"
        ]
      ]
    ]
    do {
      try await db.collection("data").document("one").setData(docData)
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    NSDictionary *docData = @{
      @"stringExample": @"Hello world!",
      @"booleanExample": @YES,
      @"numberExample": @3.14,
      @"dateExample": [FIRTimestamp timestampWithDate:[NSDate date]],
      @"arrayExample": @[@5, @YES, @"hello"],
      @"nullExample": [NSNull null],
      @"objectExample": @{
        @"a": @5,
        @"b": @{
          @"nested": @"foo"
        }
      }
    };
    
    [[[self.db collectionWithPath:@"data"] documentWithPath:@"one"] setData:docData
        completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error writing document: %@", error);
          } else {
            NSLog(@"Document successfully written!");
          }
        }];
    val docData = hashMapOf(
        "stringExample" to "Hello world!",
        "booleanExample" to true,
        "numberExample" to 3.14159265,
        "dateExample" to Timestamp(Date()),
        "listExample" to arrayListOf(1, 2, 3),
        "nullExample" to null,
    )
    
    val nestedData = hashMapOf(
        "a" to 5,
        "b" to true,
    )
    
    docData["objectExample"] = nestedData
    
    db.collection("data").document("one")
        .set(docData)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello world!");
    docData.put("booleanExample", true);
    docData.put("numberExample", 3.14159265);
    docData.put("dateExample", new Timestamp(new Date()));
    docData.put("listExample", Arrays.asList(1, 2, 3));
    docData.put("nullExample", null);
    
    Map<String, Object> nestedData = new HashMap<>();
    nestedData.put("a", 5);
    nestedData.put("b", true);
    
    docData.put("objectExample", nestedData);
    
    db.collection("data").document("one")
            .set(docData)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });
    final docData = {
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp.now(),
      "listExample": [1, 2, 3],
      "nullExample": null
    };
    
    final nestedData = {
      "a": 5,
      "b": true,
    };
    
    docData["objectExample"] = nestedData;
    
    db
        .collection("data")
        .doc("one")
        .set(docData)
        .onError((e, _) => print("Error writing document: $e"));
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello, World");
    docData.put("booleanExample", false);
    docData.put("numberExample", 3.14159265);
    docData.put("nullExample", null);
    
    ArrayList<Object> arrayExample = new ArrayList<>();
    Collections.addAll(arrayExample, 5L, true, "hello");
    docData.put("arrayExample", arrayExample);
    
    Map<String, Object> objectExample = new HashMap<>();
    objectExample.put("a", 5L);
    objectExample.put("b", true);
    
    docData.put("objectExample", objectExample);
    
    ApiFuture<WriteResult> future = db.collection("data").document("one").set(docData);
    System.out.println("Update time : " + future.get().getUpdateTime());
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    db.collection("data").document("one").set(data)
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    await db.collection("data").document("one").set(data)
    MapFieldValue doc_data{
        {"stringExample", FieldValue::String("Hello world!")},
        {"booleanExample", FieldValue::Boolean(true)},
        {"numberExample", FieldValue::Double(3.14159265)},
        {"dateExample", FieldValue::Timestamp(Timestamp::Now())},
        {"arrayExample", FieldValue::Array({FieldValue::Integer(1),
                                            FieldValue::Integer(2),
                                            FieldValue::Integer(3)})},
        {"nullExample", FieldValue::Null()},
        {"objectExample",
         FieldValue::Map(
             {{"a", FieldValue::Integer(5)},
              {"b", FieldValue::Map(
                        {{"nested", FieldValue::String("foo")}})}})},
    };
    
    db->Collection("data").Document("one").Set(doc_data).OnCompletion(
        [](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });
    const data = {
      stringExample: 'Hello, World!',
      booleanExample: true,
      numberExample: 3.14159265,
      dateExample: Timestamp.fromDate(new Date('December 10, 1815')),
      arrayExample: [5, true, 'hello'],
      nullExample: null,
      objectExample: {
        a: 5,
        b: true
      }
    };
    
    const res = await db.collection('data').doc('one').set(data);
    
    import (
    	"context"
    	"log"
    	"time"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocDataTypes(ctx context.Context, client *firestore.Client) error {
    	doc := make(map[string]interface{})
    	doc["stringExample"] = "Hello world!"
    	doc["booleanExample"] = true
    	doc["numberExample"] = 3.14159265
    	doc["dateExample"] = time.Now()
    	doc["arrayExample"] = []interface{}{5, true, "hello"}
    	doc["nullExample"] = nil
    	doc["objectExample"] = map[string]interface{}{
    		"a": 5,
    		"b": true,
    	}
    
    	_, err := client.Collection("data").Doc("one").Set(ctx, doc)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $data = [
        'stringExample' => 'Hello World',
        'booleanExample' => true,
        'numberExample' => 3.14159265,
        'dateExample' => new Timestamp(new DateTime()),
        'arrayExample' => array(5, true, 'hello'),
        'nullExample' => null,
        'objectExample' => ['a' => 5, 'b' => true],
        'documentReferenceExample' => $db->collection('samples/php/data')->document('two'),
    ];
    $db->collection('samples/php/data')->document('one')->set($data);
    printf('Set multiple data-type data for the one document in the data collection.' . PHP_EOL);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
    	{ "stringExample", "Hello World" },
    	{ "booleanExample", false },
    	{ "numberExample", 3.14159265 },
    	{ "nullExample", null },
    	{ "arrayExample", new List<object>() { 5, true, "Hello" } },
    	{ "objectExample", new Dictionary<string, object>
    		{
    			{ "a", 5 },
    			{ "b", true },
    		}
    	},
    };
    
    docRef.SetAsync(docData);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
        { "stringExample", "Hello World" },
        { "booleanExample", false },
        { "numberExample", 3.14159265 },
        { "nullExample", null },
        { "arrayExample", new object[] { 5, true, "Hello" } },
        { "objectExample", new Dictionary<string, object>
            {
                { "a", 5 },
                { "b", true},
            }
        }
    };
    
    await docRef.SetAsync(docData);
    doc_ref = firestore.doc "#{collection_path}/one"
    
    data = {
      stringExample:  "Hello, World!",
      booleanExample: true,
      numberExample:  3.14159265,
      dateExample:    DateTime.now,
      arrayExample:   [5, true, "hello"],
      nullExample:    nil,
      objectExample:  {
        a: 5,
        b: true
      }
    }
    
    doc_ref.set data

    اشیاء سفارشی

    استفاده از Map یا اشیاء Dictionary برای نشان دادن اسناد شما اغلب ناخوشایند است ، بنابراین Cloud Firestore از نوشتن اسناد با کلاس های سفارشی پشتیبانی می کند. Cloud Firestore اشیاء را به انواع داده های پشتیبانی شده تبدیل می کند.

    با استفاده از کلاسهای سفارشی ، می توانید مثال اولیه را به روش زیر بازنویسی کنید:

    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    const cityConverter = {
        toFirestore: (city) => {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: (snapshot, options) => {
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    var cityConverter = {
        toFirestore: function(city) {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: function(snapshot, options){
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    public struct City: Codable {
    
      let name: String
      let state: String?
      let country: String?
      let isCapital: Bool?
      let population: Int64?
    
      enum CodingKeys: String, CodingKey {
        case name
        case state
        case country
        case isCapital = "capital"
        case population
      }
    
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // This isn't supported in Objective-C.
      
    data class City(
        val name: String? = null,
        val state: String? = null,
        val country: String? = null,
        @field:JvmField // use this annotation if your Boolean field is prefixed with 'is'
        val isCapital: Boolean? = null,
        val population: Long? = null,
        val regions: List<String>? = null,
    )

    هر کلاس سفارشی باید یک سازنده عمومی داشته باشد که هیچ استدلالی در نظر نمی گیرد. علاوه بر این ، کلاس باید برای هر ملک یک گیرنده عمومی را در بر بگیرد.

    public class City {
    
    
        private String name;
        private String state;
        private String country;
        private boolean capital;
        private long population;
        private List<String> regions;
    
        public City() {}
    
        public City(String name, String state, String country, boolean capital, long population, List<String> regions) {
            // ...
        }
    
        public String getName() {
            return name;
        }
    
        public String getState() {
            return state;
        }
    
        public String getCountry() {
            return country;
        }
    
        public boolean isCapital() {
            return capital;
        }
    
        public long getPopulation() {
            return population;
        }
    
        public List<String> getRegions() {
            return regions;
        }
    
    }
    class City {
      final String? name;
      final String? state;
      final String? country;
      final bool? capital;
      final int? population;
      final List<String>? regions;
    
      City({
        this.name,
        this.state,
        this.country,
        this.capital,
        this.population,
        this.regions,
      });
    
      factory City.fromFirestore(
        DocumentSnapshot<Map<String, dynamic>> snapshot,
        SnapshotOptions? options,
      ) {
        final data = snapshot.data();
        return City(
          name: data?['name'],
          state: data?['state'],
          country: data?['country'],
          capital: data?['capital'],
          population: data?['population'],
          regions:
              data?['regions'] is Iterable ? List.from(data?['regions']) : null,
        );
      }
    
      Map<String, dynamic> toFirestore() {
        return {
          if (name != null) "name": name,
          if (state != null) "state": state,
          if (country != null) "country": country,
          if (capital != null) "capital": capital,
          if (population != null) "population": population,
          if (regions != null) "regions": regions,
        };
      }
    }
    public City() {
      // Must have a public no-argument constructor
    }
    
    // Initialize all fields of a city
    public City(
        String name,
        String state,
        String country,
        Boolean capital,
        Long population,
        List<String> regions) {
      this.name = name;
      this.state = state;
      this.country = country;
      this.capital = capital;
      this.population = population;
      this.regions = regions;
    }
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    // City represents a city.
    type City struct {
    	Name       string   `firestore:"name,omitempty"`
    	State      string   `firestore:"state,omitempty"`
    	Country    string   `firestore:"country,omitempty"`
    	Capital    bool     `firestore:"capital,omitempty"`
    	Population int64    `firestore:"population,omitempty"`
    	Density    int64    `firestore:"density,omitempty"`
    	Regions    []string `firestore:"regions,omitempty"`
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    class City
    {
        /** @var string */
        public $name;
        /** @var string */
        public $state;
        /** @var string */
        public $country;
        /** @var bool */
        public $capital;
        /** @var int */
        public $population;
        /** @var array<string> */
        public $regions;
    
        /**
         * @param array<string> $regions
         */
        public function __construct(
            string $name,
            string $state,
            string $country,
            bool $capital = false,
            int $population = 0,
            array $regions = []
        ) {
            $this->name = $name;
            $this->state = $state;
            $this->country = $country;
            $this->capital = $capital;
            $this->population = $population;
            $this->regions = $regions;
        }
    
        /**
         * @param array<mixed> $source
         */
        public static function fromArray(array $source): City
        {
            // implementation of fromArray is excluded for brevity
            # ...
        }
    
        /**
         * @return array<mixed>
         */
        public function toArray(): array
        {
            // implementation of toArray is excluded for brevity
            # ...
        }
    
        public function __toString()
        {
            // implementation of __toString is excluded for brevity
            # ...
        }
    }
    
    [FirestoreData]
    public class City
    {
    	[FirestoreProperty]
    	public string Name { get; set; }
    
    	[FirestoreProperty]
    	public string State { get; set; }
    
    	[FirestoreProperty]
    	public string Country { get; set; }
    
    	[FirestoreProperty]
    	public bool Capital { get; set; }
    
    	[FirestoreProperty]
    	public long Population { get; set; }
    }
    [FirestoreData]
    public class City
    {
        [FirestoreProperty]
        public string Name { get; set; }
    
        [FirestoreProperty]
        public string State { get; set; }
    
        [FirestoreProperty]
        public string Country { get; set; }
    
        [FirestoreProperty]
        public bool Capital { get; set; }
    
        [FirestoreProperty]
        public long Population { get; set; }
    }
    // This isn't supported in Ruby
    import { doc, setDoc } from "firebase/firestore"; 
    
    // Set with cityConverter
    const ref = doc(db, "cities", "LA").withConverter(cityConverter);
    await setDoc(ref, new City("Los Angeles", "CA", "USA"));
    // Set with cityConverter
    db.collection("cities").doc("LA")
      .withConverter(cityConverter)
      .set(new City("Los Angeles", "CA", "USA"));
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let city = City(name: "Los Angeles",
                    state: "CA",
                    country: "USA",
                    isCapital: false,
                    population: 5000000)
    
    do {
      try db.collection("cities").document("LA").setData(from: city)
    } catch let error {
      print("Error writing city to Firestore: \(error)")
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // This isn't supported in Objective-C.
      
    val city = City(
        "Los Angeles",
        "CA",
        "USA",
        false,
        5000000L,
        listOf("west_coast", "socal"),
    )
    db.collection("cities").document("LA").set(city)
    City city = new City("Los Angeles", "CA", "USA",
            false, 5000000L, Arrays.asList("west_coast", "sorcal"));
    db.collection("cities").document("LA").set(city);
    final city = City(
      name: "Los Angeles",
      state: "CA",
      country: "USA",
      capital: false,
      population: 5000000,
      regions: ["west_coast", "socal"],
    );
    final docRef = db
        .collection("cities")
        .withConverter(
          fromFirestore: City.fromFirestore,
          toFirestore: (City city, options) => city.toFirestore(),
        )
        .doc("LA");
    await docRef.set(city);
    City city =
        new City("Los Angeles", "CA", "USA", false, 3900000L, Arrays.asList("west_coast", "socal"));
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(city);
    // block on response if required
    System.out.println("Update time : " + future.get().getUpdateTime());
    city = City(name="Los Angeles", state="CA", country="USA")
    db.collection("cities").document("LA").set(city.to_dict())
    city = City(name="Los Angeles", state="CA", country="USA")
    await db.collection("cities").document("LA").set(city.to_dict())
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsEntity(ctx context.Context, client *firestore.Client) error {
    	city := City{
    		Name:    "Los Angeles",
    		Country: "USA",
    	}
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, city)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    
    // This isn't supported in PHP.
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
    	Name = "Los Angeles",
    	State = "CA",
    	Country = "USA",
    	Capital = false,
    	Population = 3900000L
    };
    docRef.SetAsync(city);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
        Name = "Los Angeles",
        State = "CA",
        Country = "USA",
        Capital = false,
        Population = 3900000L
    };
    await docRef.SetAsync(city);
    // This isn't supported in Ruby.

    یک سند اضافه کنید

    هنگامی که از set() برای ایجاد یک سند استفاده می کنید ، باید یک شناسه را برای ایجاد سند مشخص کنید ، همانطور که در مثال زیر نشان داده شده است:

    import { doc, setDoc } from "firebase/firestore"; 
    
    await setDoc(doc(db, "cities", "new-city-id"), data);
    db.collection("cities").doc("new-city-id").set(data);
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    db.collection("cities").document("new-city-id").setData(data)
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"new-city-id"]
        setData:data];
    db.collection("cities").document("new-city-id").set(data)
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").doc("new-city-id").set({"name": "Chicago"});
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").document("new-city-id").set(data)
    await db.collection("cities").document("new-city-id").set(data)
    db->Collection("cities").Document("SF").Set({/*some data*/});
    await db.collection('cities').doc('new-city-id').set(data);
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithID(ctx context.Context, client *firestore.Client) error {
    	var data = make(map[string]interface{})
    
    	_, err := client.Collection("cities").Doc("new-city-id").Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $db->collection('samples/php/cities')->document('new-city-id')->set($data);
    db.Collection("cities").Document("new-city-id").SetAsync(city);
    await db.Collection("cities").Document("new-city-id").SetAsync(city);
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.set data

    اگر یک شناسه معنی دار برای سند وجود نداشته باشد ، Cloud Firestore می تواند یک شناسه را برای شما ایجاد کند. می توانید روشهای add() زبان زیر را فراخوانی کنید:

    از روش addDoc() استفاده کنید:

    import { collection, addDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id.
    const docRef = await addDoc(collection(db, "cities"), {
      name: "Tokyo",
      country: "Japan"
    });
    console.log("Document written with ID: ", docRef.id);

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    db.collection("cities").add({
        name: "Tokyo",
        country: "Japan"
    })
    .then((docRef) => {
        console.log("Document written with ID: ", docRef.id);
    })
    .catch((error) => {
        console.error("Error adding document: ", error);
    });

    از روش addDocument() استفاده کنید:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Add a new document with a generated id.
    do {
      let ref = try await db.collection("cities").addDocument(data: [
        "name": "Tokyo",
        "country": "Japan"
      ])
      print("Document added with ID: \(ref.documentID)")
    } catch {
      print("Error adding document: \(error)")
    }

    از addDocumentWithData: روش:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Add a new document with a generated id.
    __block FIRDocumentReference *ref =
        [[self.db collectionWithPath:@"cities"] addDocumentWithData:@{
          @"name": @"Tokyo",
          @"country": @"Japan"
        } completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error adding document: %@", error);
          } else {
            NSLog(@"Document added with ID: %@", ref.documentID);
          }
        }];

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    val data = hashMapOf(
        "name" to "Tokyo",
        "country" to "Japan",
    )
    
    db.collection("cities")
        .add(data)
        .addOnSuccessListener { documentReference ->
            Log.d(TAG, "DocumentSnapshot written with ID: ${documentReference.id}")
        }
        .addOnFailureListener { e ->
            Log.w(TAG, "Error adding document", e)
        }

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    
    db.collection("cities")
            .add(data)
            .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                @Override
                public void onSuccess(DocumentReference documentReference) {
                    Log.d(TAG, "DocumentSnapshot written with ID: " + documentReference.getId());
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error adding document", e);
                }
            });

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    final data = {"name": "Tokyo", "country": "Japan"};
    
    db.collection("cities").add(data).then((documentSnapshot) =>
        print("Added Data with ID: ${documentSnapshot.id}"));

    از روش add() استفاده کنید:

    // Add document data with auto-generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    ApiFuture<DocumentReference> addedDocRef = db.collection("cities").add(data);
    System.out.println("Added document with ID: " + addedDocRef.get().getId());

    از روش add() استفاده کنید:

    city = {"name": "Tokyo", "country": "Japan"}
    update_time, city_ref = db.collection("cities").add(city)
    print(f"Added document with id {city_ref.id}")

    از روش add() استفاده کنید:

    city = City(name="Tokyo", state=None, country="Japan")
    await db.collection("cities").add(city.to_dict())

    از روش Add() استفاده کنید:

    db->Collection("cities").Add({/*some data*/});

    از روش add() استفاده کنید:

    // Add a new document with a generated id.
    const res = await db.collection('cities').add({
      name: 'Tokyo',
      country: 'Japan'
    });
    
    console.log('Added document with ID: ', res.id);

    از روش Add() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithoutID(ctx context.Context, client *firestore.Client) error {
    	_, _, err := client.Collection("cities").Add(ctx, map[string]interface{}{
    		"name":    "Tokyo",
    		"country": "Japan",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از روش add() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $data = [
        'name' => 'Tokyo',
        'country' => 'Japan'
    ];
    $addedDocRef = $db->collection('samples/php/cities')->add($data);
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());

    از روش AddAsync() استفاده کنید:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Tokyo" },
    	{ "Country", "Japan" }
    };
    db.Collection("cities").AddAsync(city).ContinueWithOnMainThread(task => {
    	DocumentReference addedDocRef = task.Result;
    	Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    });

    از روش AddAsync() استفاده کنید:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "Name", "Tokyo" },
        { "Country", "Japan" }
    };
    DocumentReference addedDocRef = await db.Collection("cities").AddAsync(city);
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);

    از روش add() استفاده کنید:

    data = {
      name:    "Tokyo",
      country: "Japan"
    }
    
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.add data
    puts "Added document with ID: #{added_doc_ref.document_id}."

    در بعضی موارد ، ایجاد یک مرجع سند با یک شناسه تولید شده به صورت خودکار می تواند مفید باشد ، سپس بعداً از مرجع استفاده کنید. برای این مورد استفاده ، می توانید به روش زیر با doc() تماس بگیرید:

    import { collection, doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id
    const newCityRef = doc(collection(db, "cities"));
    
    // later...
    await setDoc(newCityRef, data);
    // Add a new document with a generated id.
    var newCityRef = db.collection("cities").doc();
    
    // later...
    newCityRef.set(data);
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let newCityRef = db.collection("cities").document()
    
    // later...
    newCityRef.setData([
      // ...
    ])
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    FIRDocumentReference *newCityRef = [[self.db collectionWithPath:@"cities"] documentWithAutoID];
    // later...
    [newCityRef setData:@{ /* ... */ }];
    val data = HashMap<String, Any>()
    
    val newCityRef = db.collection("cities").document()
    
    // Later...
    newCityRef.set(data)
    Map<String, Object> data = new HashMap<>();
    
    DocumentReference newCityRef = db.collection("cities").document();
    
    // Later...
    newCityRef.set(data);
    // Add a new document with a generated id.
    final data = <String, dynamic>{};
    
    final newCityRef = db.collection("cities").doc();
    
    // Later...
    newCityRef.set(data);
    
    // Add document data after generating an id.
    DocumentReference addedDocRef = db.collection("cities").document();
    System.out.println("Added document with ID: " + addedDocRef.getId());
    
    // later...
    ApiFuture<WriteResult> writeResult = addedDocRef.set(data);
    new_city_ref = db.collection("cities").document()
    
    # later...
    new_city_ref.set(
        {
            # ...
        }
    )
    new_city_ref = db.collection("cities").document()
    
    # later...
    await new_city_ref.set(
        {
            # ...
        }
    )
    DocumentReference new_city_ref = db->Collection("cities").Document();
    const newCityRef = db.collection('cities').doc();
    
    // Later...
    const res = await newCityRef.set({
      // ...
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAfterAutoGeneratedID(ctx context.Context, client *firestore.Client) error {
    	data := City{
    		Name:    "Sydney",
    		Country: "Australia",
    	}
    
    	ref := client.Collection("cities").NewDoc()
    
    	// later...
    	_, err := ref.Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $addedDocRef = $db->collection('samples/php/cities')->newDocument();
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());
    $addedDocRef->set($data);
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    addedDocRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log(String.Format(
    		"Added data to the {0} document in the cities collection.", addedDocRef.Id));
    });
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);
    await addedDocRef.SetAsync(city);
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.doc
    puts "Added document with ID: #{added_doc_ref.document_id}."
    
    added_doc_ref.set data

    در باطن ، .add(...) و .doc().set(...) معادل هستند ، بنابراین می توانید از هر گزینه استفاده کنید.

    یک سند را به روز کنید

    برای به روزرسانی برخی از زمینه های یک سند بدون نوشتن کل سند ، از روش های update() استفاده کنید:

    از روش updateDoc() استفاده کنید:

    import { doc, updateDoc } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Set the "capital" field of the city 'DC'
    await updateDoc(washingtonRef, {
      capital: true
    });

    از روش update() استفاده کنید:

    var washingtonRef = db.collection("cities").doc("DC");
    
    // Set the "capital" field of the city 'DC'
    return washingtonRef.update({
        capital: true
    })
    .then(() => {
        console.log("Document successfully updated!");
    })
    .catch((error) => {
        // The document probably doesn't exist.
        console.error("Error updating document: ", error);
    });

    از روش updateData() استفاده کنید:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Set the "capital" field of the city 'DC'
    do {
      try await washingtonRef.updateData([
        "capital": true
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }

    از روش updateData: روش:

    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    // Set the "capital" field of the city
    [washingtonRef updateData:@{
      @"capital": @YES
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];

    از روش update() استفاده کنید:

    val washingtonRef = db.collection("cities").document("DC")
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
        .update("capital", true)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully updated!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error updating document", e) }

    از روش update() استفاده کنید:

    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
            .update("capital", true)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully updated!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error updating document", e);
                }
            });

    از روش update() استفاده کنید:

    final washingtonRef = db.collection("cites").doc("DC");
    washingtonRef.update({"capital": true}).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));

    از روش update() استفاده کنید:

    // Update an existing document
    DocumentReference docRef = db.collection("cities").document("DC");
    
    // (async) Update one field
    ApiFuture<WriteResult> future = docRef.update("capital", true);
    
    // ...
    WriteResult result = future.get();
    System.out.println("Write result: " + result);

    از روش update() استفاده کنید:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    city_ref.update({"capital": True})

    از روش update() استفاده کنید:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    await city_ref.update({"capital": True})

    از روش Update() استفاده کنید:

    DocumentReference washington_ref = db->Collection("cities").Document("DC");
    // Set the "capital" field of the city "DC".
    washington_ref.Update({{"capital", FieldValue::Boolean(true)}});

    از روش update() استفاده کنید:

    const cityRef = db.collection('cities').doc('DC');
    
    // Set the 'capital' field of the city
    const res = await cityRef.update({capital: true});

    از روش Update() استفاده کنید:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDoc(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("cities").Doc("DC").Update(ctx, []firestore.Update{
    		{
    			Path:  "capital",
    			Value: true,
    		},
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    از روش update() استفاده کنید:

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    $cityRef->update([
        ['path' => 'capital', 'value' => true]
    ]);

    از روش UpdateAsync() استفاده کنید:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
    	{ "Capital", false }
    };
    
    cityRef.UpdateAsync(updates).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the Capital field of the new-city-id document in the cities collection.");
    });
    // You can also update a single field with: cityRef.UpdateAsync("Capital", false);

    از روش UpdateAsync() استفاده کنید:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Capital", false }
    };
    await cityRef.UpdateAsync(updates);
    
    // You can also update a single field with: await cityRef.UpdateAsync("Capital", false);

    از روش update() استفاده کنید:

    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ capital: true })

    مهر زمان سرور

    می توانید یک فیلد را در سند خود در یک Timestamp سرور تنظیم کنید که هنگام دریافت سرور به روزرسانی را ردیابی می کند.

    import { updateDoc, serverTimestamp } from "firebase/firestore";
    
    const docRef = doc(db, 'objects', 'some-id');
    
    // Update the timestamp field with the value from the server
    const updateTimestamp = await updateDoc(docRef, {
        timestamp: serverTimestamp()
    });
    var docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    var updateTimestamp = docRef.update({
        timestamp: firebase.firestore.FieldValue.serverTimestamp()
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    do {
      try await db.collection("objects").document("some-id").updateData([
        "lastUpdated": FieldValue.serverTimestamp(),
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    [[[self.db collectionWithPath:@"objects"] documentWithPath:@"some-id"] updateData:@{
      @"lastUpdated": [FIRFieldValue fieldValueForServerTimestamp]
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // If you're using custom Kotlin objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    val docRef = db.collection("objects").document("some-id")
    
    // Update the timestamp field with the value from the server
    val updates = hashMapOf<String, Any>(
        "timestamp" to FieldValue.serverTimestamp(),
    )
    
    docRef.update(updates).addOnCompleteListener { }
    // If you're using custom Java objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    DocumentReference docRef = db.collection("objects").document("some-id");
    
    // Update the timestamp field with the value from the server
    Map<String,Object> updates = new HashMap<>();
    updates.put("timestamp", FieldValue.serverTimestamp());
    
    docRef.update(updates).addOnCompleteListener(new OnCompleteListener<Void>() {
        // ...
        // ...
    final docRef = db.collection("objects").doc("some-id");
    final updates = <String, dynamic>{
      "timestamp": FieldValue.serverTimestamp(),
    };
    
    docRef.update(updates).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));
    DocumentReference docRef = db.collection("objects").document("some-id");
    // Update the timestamp field with the value from the server
    ApiFuture<WriteResult> writeResult = docRef.update("timestamp", FieldValue.serverTimestamp());
    System.out.println("Update time : " + writeResult.get());
    city_ref = db.collection("objects").document("some-id")
    city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    city_ref = db.collection("objects").document("some-id")
    await city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    DocumentReference doc_ref = db->Collection("objects").Document("some-id");
    doc_ref.Update({{"timestamp", FieldValue::ServerTimestamp()}})
        .OnCompletion([](const Future<void>& future) {
          // ...
        });
    // Create a document reference
    const docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    const res = await docRef.update({
      timestamp: FieldValue.serverTimestamp()
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocServerTimestamp(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("objects").Doc("some-id").Set(ctx, map[string]interface{}{
    		"timestamp": firestore.ServerTimestamp,
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $docRef = $db->collection('samples/php/objects')->document('some-id');
    $docRef->update([
        ['path' => 'timestamp', 'value' => FieldValue::serverTimestamp()]
    ]);
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    cityRef.UpdateAsync("Timestamp", FieldValue.ServerTimestamp)
    	.ContinueWithOnMainThread(task => {
    		Debug.Log(
    			"Updated the Timestamp field of the new-city-id document in the cities "
    			+ "collection.");
    	});
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    await cityRef.UpdateAsync("Timestamp", Timestamp.GetCurrentTimestamp());
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.update({ timestamp: firestore.field_server_time })

    هنگام به روزرسانی چندین قسمت Timestamp در داخل یک معامله ، هر فیلد همان مقدار Timestamp سرور را دریافت می کند.

    زمینه ها را در اشیاء تو در تو به روز کنید

    اگر سند شما حاوی اشیاء تو در تو است ، می توانید هنگام تماس با update() از Notation DOT برای استفاده از قسمت های مرجع در داخل سند استفاده کنید:

    import { doc, setDoc, updateDoc } from "firebase/firestore"; 
    
    // Create an initial document to update.
    const frankDocRef = doc(db, "users", "frank");
    await setDoc(frankDocRef, {
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    await updateDoc(frankDocRef, {
        "age": 13,
        "favorites.color": "Red"
    });
    // Create an initial document to update.
    var frankDocRef = db.collection("users").doc("frank");
    frankDocRef.set({
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    db.collection("users").doc("frank").update({
        "age": 13,
        "favorites.color": "Red"
    })
    .then(() => {
        console.log("Document successfully updated!");
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Create an initial document to update.
    let frankDocRef = db.collection("users").document("frank")
    do {
      try await frankDocRef.setData([
        "name": "Frank",
        "favorites": [ "food": "Pizza", "color": "Blue", "subject": "recess" ],
        "age": 12
      ])
    
      // To update age and favorite color:
      try await frankDocRef.updateData([
        "age": 13,
        "favorites.color": "Red"
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    // Create an initial document to update.
    FIRDocumentReference *frankDocRef =
        [[self.db collectionWithPath:@"users"] documentWithPath:@"frank"];
    [frankDocRef setData:@{
      @"name": @"Frank",
      @"favorites": @{
        @"food": @"Pizza",
        @"color": @"Blue",
        @"subject": @"recess"
      },
      @"age": @12
    }];
    // To update age and favorite color:
    [frankDocRef updateData:@{
      @"age": @13,
      @"favorites.color": @"Red",
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
        .update(
            mapOf(
                "age" to 13,
                "favorites.color" to "Red",
            ),
        )
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
            .update(
                    "age", 13,
                    "favorites.color", "Red"
            );
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    db
        .collection("users")
        .doc("frank")
        .update({"age": 13, "favorites.color": "Red"});
    // Create an initial document to update
    DocumentReference frankDocRef = db.collection("users").document("frank");
    Map<String, Object> initialData = new HashMap<>();
    initialData.put("name", "Frank");
    initialData.put("age", 12);
    
    Map<String, Object> favorites = new HashMap<>();
    favorites.put("food", "Pizza");
    favorites.put("color", "Blue");
    favorites.put("subject", "Recess");
    initialData.put("favorites", favorites);
    
    ApiFuture<WriteResult> initialResult = frankDocRef.set(initialData);
    // Confirm that data has been successfully saved by blocking on the operation
    initialResult.get();
    
    // Update age and favorite color
    Map<String, Object> updates = new HashMap<>();
    updates.put("age", 13);
    updates.put("favorites.color", "Red");
    
    // Async update document
    ApiFuture<WriteResult> writeResult = frankDocRef.update(updates);
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    frank_ref.update({"age": 13, "favorites.color": "Red"})
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    await frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    await frank_ref.update({"age": 13, "favorites.color": "Red"})
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db->Collection("users").Document("frank").Update({
        {"age", FieldValue::Integer(13)},
        {"favorites.color", FieldValue::String("red")},
    });
    const initialData = {
      name: 'Frank',
      age: 12,
      favorites: {
        food: 'Pizza',
        color: 'Blue',
        subject: 'recess'
      }
    };
    
    // ...
    const res = await db.collection('users').doc('Frank').update({
      age: 13,
      'favorites.color': 'Red'
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocNested(ctx context.Context, client *firestore.Client) error {
    	initialData := map[string]interface{}{
    		"name": "Frank",
    		"age":  12,
    		"favorites": map[string]interface{}{
    			"food":    "Pizza",
    			"color":   "Blue",
    			"subject": "recess",
    		},
    	}
    
    	// ...
    
    	_, err := client.Collection("users").Doc("frank").Set(ctx, map[string]interface{}{
    		"age": 13,
    		"favorites": map[string]interface{}{
    			"color": "Red",
    		},
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    // Create an initial document to update
    $frankRef = $db->collection('samples/php/users')->document('frank');
    $frankRef->set([
        'first' => 'Frank',
        'last' => 'Franklin',
        'favorites' => ['food' => 'Pizza', 'color' => 'Blue', 'subject' => 'Recess'],
        'age' => 12
    ]);
    
    // Update age and favorite color
    $frankRef->update([
        ['path' => 'age', 'value' => 13],
        ['path' => 'favorites.color', 'value' => 'Red']
    ]);
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
    	{ "Name", "Frank" },
    	{ "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
    	{ "Food", "Pizza" },
    	{ "Color", "Blue" },
    	{ "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    frankDocRef.SetAsync(initialData).ContinueWithOnMainThread(task => {
    
    	// Update age and favorite color
    	Dictionary<string, object> updates = new Dictionary<string, object>
    	{
    		{ "Age", 13 },
    		{ "Favorites.Color", "Red" },
    	};
    
    	// Asynchronously update the document
    	return frankDocRef.UpdateAsync(updates);
    }).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the age and favorite color fields of the Frank document in "
    		+ "the users collection.");
    });
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
        { "Name", "Frank" },
        { "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
        { "Food", "Pizza" },
        { "Color", "Blue" },
        { "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    await frankDocRef.SetAsync(initialData);
    
    // Update age and favorite color
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Age", 13 },
        { "Favorites.Color", "Red" },
    };
    
    // Asynchronously update the document
    await frankDocRef.UpdateAsync(updates);
    # Create an initial document to update
    frank_ref = firestore.doc "#{collection_path}/frank"
    frank_ref.set(
      {
        name:      "Frank",
        favorites: {
          food:    "Pizza",
          color:   "Blue",
          subject: "Recess"
        },
        age:       12
      }
    )
    
    # Update age and favorite color
    frank_ref.update({ age: 13, "favorites.color": "Red" })

    Dot Notation به شما امکان می دهد بدون نوشتن سایر زمینه های تو در تو ، یک زمینه تو در تو را به روز کنید. اگر یک قسمت تو در تو را بدون نماد نقطه به روز کنید ، همانطور که در مثال زیر نشان داده شده است ، کل قسمت نقشه را بازنویسی خواهید کرد:

    وب
    // Create our initial doc
    db.collection("users").doc("frank").set({
      name: "Frank",
      favorites: {
        food: "Pizza",
        color: "Blue",
        subject: "Recess"
      },
      age: 12
    }).then(function() {
      console.log("Frank created");
    });
    
    // Update the doc without using dot notation.
    // Notice the map value for favorites.
    db.collection("users").doc("frank").update({
      favorites: {
        food: "Ice Cream"
      }
    }).then(function() {
      console.log("Frank food updated");
    });
    
    /*
    Ending State, favorite.color and favorite.subject are no longer present:
    /users
        /frank
            {
                name: "Frank",
                favorites: {
                    food: "Ice Cream",
                },
                age: 12
            }
     */

    عناصر را در یک آرایه به روز کنید

    اگر سند شما حاوی یک قسمت آرایه است ، می توانید از arrayUnion() و arrayRemove() برای اضافه کردن و حذف عناصر استفاده کنید. arrayUnion() عناصر را به یک آرایه اضافه می کند اما فقط عناصری که از قبل موجود نیستند. arrayRemove() تمام نمونه های هر عنصر معین را حذف می کند.

    import { doc, updateDoc, arrayUnion, arrayRemove } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically add a new region to the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayRemove("east_coast")
    });
    var washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayRemove("east_coast")
    });
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayUnion(["greater_virginia"])
    ])
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayRemove(["east_coast"])
    ])
    توجه: این محصول در اهداف WatchOS و برنامه کلیپ در دسترس نیست.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically add a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayUnion:@[@"greater_virginia"]]
    }];
    
    // Atomically remove a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayRemove:@[@"east_coast"]]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"))
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    final washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayUnion(["greater_virginia"]),
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayRemove(["east_coast"]),
    });
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    ApiFuture<WriteResult> arrayUnion =
        washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    System.out.println("Update time : " + arrayUnion.get());
    
    // Atomically remove a region from the "regions" array field.
    ApiFuture<WriteResult> arrayRm =
        washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    System.out.println("Update time : " + arrayRm.get());
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically add a new region to the "regions" array field.
    const unionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('greater_virginia')
    });
    // Atomically remove a region from the "regions" array field.
    const removeRes = await washingtonRef.update({
      regions: FieldValue.arrayRemove('east_coast')
    });
    
    // To add or remove multiple items, pass multiple arguments to arrayUnion/arrayRemove
    const multipleUnionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('south_carolina', 'texas')
      // Alternatively, you can use spread operator in ES6 syntax
      // const newRegions = ['south_carolina', 'texas']
      // regions: FieldValue.arrayUnion(...newRegions)
    });
    // Not supported yet

    PHP

    برای اطلاعات بیشتر در مورد نصب و ایجاد مشتری Cloud Firestore ، به کتابخانه های مشتری Cloud Firestore مراجعه کنید.

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically add a new region to the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayUnion(['greater_virginia'])]
    ]);
    
    // Atomically remove a region from the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayRemove(['east_coast'])]
    ]);
    // This is not yet supported in the Unity SDK
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically add a new region to the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayRemove("east_coast"));
    // Not supported yet

    مقدار عددی را افزایش دهید

    همانطور که در مثال زیر نشان داده شده است می توانید مقدار میدان عددی را افزایش یا کاهش دهید. یک عمل افزایش مقدار فعلی یک میدان را با مقدار مشخص افزایش یا کاهش می دهد.

    import { doc, updateDoc, increment } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically increment the population of the city by 50.
    await updateDoc(washingtonRef, {
        population: increment(50)
    });
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update({
        population: firebase.firestore.FieldValue.increment(50)
    });
    Note: This product is not available on watchOS and App Clip targets.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    washingtonRef.updateData([
      "population": FieldValue.increment(Int64(50))
    ])
    Note: This product is not available on watchOS and App Clip targets.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    [washingtonRef updateData:@{
      @"population": [FIRFieldValue fieldValueForIntegerIncrement:50]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50));
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update(
      {"population": FieldValue.increment(50)},
    );
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    final ApiFuture<WriteResult> updateFuture =
        washingtonRef.update("population", FieldValue.increment(50));
    washington_ref = db.collection("cities").document("DC")
    
    washington_ref.update({"population": firestore.Increment(50)})
    washington_ref = db.collection("cities").document("DC")
    
    await washington_ref.update({"population": firestore.Increment(50)})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    const res = await washingtonRef.update({
      population: FieldValue.increment(50)
    });
    import (
    	"context"
    	"fmt"
    
    	"cloud.google.com/go/firestore"
    )
    
    // updateDocumentIncrement increments the population of the city document in the
    // cities collection by 50.
    func updateDocumentIncrement(projectID, city string) error {
    	// projectID := "my-project"
    
    	ctx := context.Background()
    
    	client, err := firestore.NewClient(ctx, projectID)
    	if err != nil {
    		return fmt.Errorf("firestore.NewClient: %w", err)
    	}
    	defer client.Close()
    
    	dc := client.Collection("cities").Doc(city)
    	_, err = dc.Update(ctx, []firestore.Update{
    		{Path: "population", Value: firestore.Increment(50)},
    	})
    	if err != nil {
    		return fmt.Errorf("Update: %w", err)
    	}
    
    	return nil
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically increment the population of the city by 50.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::increment(50)]
    ]);
    // This is not yet supported in the Unity SDK.
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically increment the population of the city by 50.
    await washingtonRef.UpdateAsync("Regions", FieldValue.Increment(50));
    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ population: firestore.field_increment(50) })

    Increment operations are useful for implementing counters. Note that updating a single document too quickly can lead to contention or errors . If you need to update your counter at a very high rate, see the Distributed counters page.

    ،

    This document explains how to set, add, or update individual documents in Cloud Firestore . To write data in bulk, see Transactions and batched writes .

    نمای کلی

    You can write data to Cloud Firestore in one of the following ways:

    • Set the data of a document within a collection, explicitly specifying a document identifier.
    • Add a new document to a collection. In this case, Cloud Firestore automatically generates the document identifier.
    • Create an empty document with an automatically generated identifier, and assign data to it later.

    قبل از شروع

    Before you can initialize Cloud Firestore to set, add, or update data, you must complete the following steps:

    Initialize Cloud Firestore

    Initialize an instance of Cloud Firestore :

    import { initializeApp } from "firebase/app";
    import { getFirestore } from "firebase/firestore";
    
    // TODO: Replace the following with your app's Firebase project configuration
    // See: https://support.google.com/firebase/answer/7015592
    const firebaseConfig = {
        FIREBASE_CONFIGURATION
    };
    
    // Initialize Firebase
    const app = initializeApp(firebaseConfig);
    
    
    // Initialize Cloud Firestore and get a reference to the service
    const db = getFirestore(app);
    

    Replace FIREBASE_CONFIGURATION with your web app's firebaseConfig .

    To persist data when the device loses its connection, see the Enable Offline Data documentation.

    import firebase from "firebase/app";
    import "firebase/firestore";
    
    // TODO: Replace the following with your app's Firebase project configuration
    // See: https://support.google.com/firebase/answer/7015592
    const firebaseConfig = {
        FIREBASE_CONFIGURATION
    };
    
    // Initialize Firebase
    firebase.initializeApp(firebaseConfig);
    
    
    // Initialize Cloud Firestore and get a reference to the service
    const db = firebase.firestore();
    

    Replace FIREBASE_CONFIGURATION with your web app's firebaseConfig .

    To persist data when the device loses its connection, see the Enable Offline Data documentation.

    Note: This product is not available on watchOS and App Clip targets.
    import FirebaseCore
    import FirebaseFirestore
    FirebaseApp.configure()
    
    let db = Firestore.firestore()
    Note: This product is not available on watchOS and App Clip targets.
    @import FirebaseCore;
    @import FirebaseFirestore;
    
    // Use Firebase library to configure APIs
    [FIRApp configure];
      
    FIRFirestore *defaultFirestore = [FIRFirestore firestore];
    // Access a Cloud Firestore instance from your Activity
    val db = Firebase.firestore
    // Access a Cloud Firestore instance from your Activity
    FirebaseFirestore db = FirebaseFirestore.getInstance();
    db = FirebaseFirestore.instance;
    The Cloud Firestore SDK is initialized in different ways depending on your environment. Below are the most common methods. For a complete reference, see Initialize the Admin SDK .
  • Initialize on Google Cloud
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use the application default credentials
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault();
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .setProjectId(projectId)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • Initialize on your own server

    To use the Firebase Admin SDK on your own server, use a service account .

    Go to IAM & admin > Service accounts in the Google Cloud console. Generate a new private key and save the JSON file. Then use the file to initialize the SDK:

    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.cloud.firestore.Firestore;
    
    import com.google.firebase.FirebaseApp;
    import com.google.firebase.FirebaseOptions;
    
    // Use a service account
    InputStream serviceAccount = new FileInputStream("path/to/serviceAccount.json");
    GoogleCredentials credentials = GoogleCredentials.fromStream(serviceAccount);
    FirebaseOptions options = new FirebaseOptions.Builder()
        .setCredentials(credentials)
        .build();
    FirebaseApp.initializeApp(options);
    
    Firestore db = FirestoreClient.getFirestore();
  • The Cloud Firestore SDK is initialized in different ways depending on your environment. Below are the most common methods. For a complete reference, see Initialize the Admin SDK .
  • Initialize on Google Cloud
    import firebase_admin
    from firebase_admin import firestore
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore.client()

    An existing application default credential can also be used to initialize the SDK.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore.client()
  • Initialize on your own server

    To use the Firebase Admin SDK on your own server, use a service account .

    Go to IAM & admin > Service accounts in the Google Cloud console. Generate a new private key and save the JSON file. Then use the file to initialize the SDK:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore.client()
  • The Cloud Firestore SDK is initialized in different ways depending on your environment. Below are the most common methods. For a complete reference, see Initialize the Admin SDK .
  • Initialize on Google Cloud
    import firebase_admin
    from firebase_admin import firestore_async
    
    # Application Default credentials are automatically created.
    app = firebase_admin.initialize_app()
    db = firestore_async.client()

    An existing application default credential can also be used to initialize the SDK.

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use the application default credentials.
    cred = credentials.ApplicationDefault()
    
    firebase_admin.initialize_app(cred)
    db = firestore_async.client()
  • Initialize on your own server

    To use the Firebase Admin SDK on your own server, use a service account .

    Go to IAM & admin > Service accounts in the Google Cloud console. Generate a new private key and save the JSON file. Then use the file to initialize the SDK:

    import firebase_admin
    from firebase_admin import credentials
    from firebase_admin import firestore_async
    
    # Use a service account.
    cred = credentials.Certificate('path/to/serviceAccount.json')
    
    app = firebase_admin.initialize_app(cred)
    
    db = firestore_async.client()
  • // Make sure the call to `Create()` happens some time before you call Firestore::GetInstance().
    App::Create();
    Firestore* db = Firestore::GetInstance();
    The Cloud Firestore SDK is initialized in different ways depending on your environment. Below are the most common methods. For a complete reference, see Initialize the Admin SDK .
    • Initialize on Cloud Functions
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp();
      
      const db = getFirestore();
      
    • Initialize on Google Cloud
      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      initializeApp({
        credential: applicationDefault()
      });
      
      const db = getFirestore();
    • Initialize on your own server

      To use the Firebase Admin SDK on your own server (or any other Node.js environment), use a service account . Go to IAM & admin > Service accounts in the Google Cloud console. Generate a new private key and save the JSON file. Then use the file to initialize the SDK:

      const { initializeApp, applicationDefault, cert } = require('firebase-admin/app');
      const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
      const serviceAccount = require('./path/to/serviceAccountKey.json');
      
      initializeApp({
        credential: cert(serviceAccount)
      });
      
      const db = getFirestore();
      
    The Cloud Firestore SDK is initialized in different ways depending on your environment. Below are the most common methods. For a complete reference, see Initialize the Admin SDK .
  • Initialize on Google Cloud
    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use the application default credentials
    ctx := context.Background()
    conf := &firebase.Config{ProjectID: projectID}
    app, err := firebase.NewApp(ctx, conf)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • Initialize on your own server

    To use the Firebase Admin SDK on your own server, use a service account .

    Go to IAM & admin > Service accounts in the Google Cloud console. Generate a new private key and save the JSON file. Then use the file to initialize the SDK:

    import (
      "log"
    
      firebase "firebase.google.com/go"
      "google.golang.org/api/option"
    )
    
    // Use a service account
    ctx := context.Background()
    sa := option.WithCredentialsFile("path/to/serviceAccount.json")
    app, err := firebase.NewApp(ctx, nil, sa)
    if err != nil {
      log.Fatalln(err)
    }
    
    client, err := app.Firestore(ctx)
    if err != nil {
      log.Fatalln(err)
    }
    defer client.Close()
  • PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    use Google\Cloud\Firestore\FirestoreClient;
    
    /**
     * Initialize Cloud Firestore with default project ID.
     */
    function setup_client_create(string $projectId = null)
    {
        // Create the Cloud Firestore client
        if (empty($projectId)) {
            // The `projectId` parameter is optional and represents which project the
            // client will act on behalf of. If not supplied, the client falls back to
            // the default project inferred from the environment.
            $db = new FirestoreClient();
            printf('Created Cloud Firestore client with default project ID.' . PHP_EOL);
        } else {
            $db = new FirestoreClient([
                'projectId' => $projectId,
            ]);
            printf('Created Cloud Firestore client with project ID: %s' . PHP_EOL, $projectId);
        }
    }
    using Firebase.Firestore;
    using Firebase.Extensions;
    FirebaseFirestore db = FirebaseFirestore.DefaultInstance;

    سی شارپ

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    FirestoreDb db = FirestoreDb.Create(project);
    Console.WriteLine("Created Cloud Firestore client with project ID: {0}", project);
    require "google/cloud/firestore"
    
    # The `project_id` parameter is optional and represents which project the
    # client will act on behalf of. If not supplied, the client falls back to the
    # default project inferred from the environment.
    firestore = Google::Cloud::Firestore.new project_id: project_id
    
    puts "Created Cloud Firestore client with given project ID."

    Set a document

    To create or overwrite a single document, use the following language-specific set() methods:

    Use the setDoc() method:

    import { doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document in collection "cities"
    await setDoc(doc(db, "cities", "LA"), {
      name: "Los Angeles",
      state: "CA",
      country: "USA"
    });

    Use the set() method:

    // Add a new document in collection "cities"
    db.collection("cities").doc("LA").set({
        name: "Los Angeles",
        state: "CA",
        country: "USA"
    })
    .then(() => {
        console.log("Document successfully written!");
    })
    .catch((error) => {
        console.error("Error writing document: ", error);
    });

    Use the setData() method:

    Note: This product is not available on watchOS and App Clip targets.
    // Add a new document in collection "cities"
    do {
      try await db.collection("cities").document("LA").setData([
        "name": "Los Angeles",
        "state": "CA",
        "country": "USA"
      ])
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }

    Use the setData: method:

    Note: This product is not available on watchOS and App Clip targets.
    // Add a new document in collection "cities"
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"LA"] setData:@{
      @"name": @"Los Angeles",
      @"state": @"CA",
      @"country": @"USA"
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error writing document: %@", error);
      } else {
        NSLog(@"Document successfully written!");
      }
    }];

    Use the set() method:

    val city = hashMapOf(
        "name" to "Los Angeles",
        "state" to "CA",
        "country" to "USA",
    )
    
    db.collection("cities").document("LA")
        .set(city)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }

    Use the set() method:

    Map<String, Object> city = new HashMap<>();
    city.put("name", "Los Angeles");
    city.put("state", "CA");
    city.put("country", "USA");
    
    db.collection("cities").document("LA")
            .set(city)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });

    Use the set() method:

    final city = <String, String>{
      "name": "Los Angeles",
      "state": "CA",
      "country": "USA"
    };
    
    db
        .collection("cities")
        .doc("LA")
        .set(city)
        .onError((e, _) => print("Error writing document: $e"));

    Use the set() method:

    // Create a Map to store the data we want to set
    Map<String, Object> docData = new HashMap<>();
    docData.put("name", "Los Angeles");
    docData.put("state", "CA");
    docData.put("country", "USA");
    docData.put("regions", Arrays.asList("west_coast", "socal"));
    // Add a new document (asynchronously) in collection "cities" with id "LA"
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(docData);
    // ...
    // future.get() blocks on response
    System.out.println("Update time : " + future.get().getUpdateTime());

    Use the set() method:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    db.collection("cities").document("LA").set(data)

    Use the set() method:

    data = {"name": "Los Angeles", "state": "CA", "country": "USA"}
    
    # Add a new doc in collection 'cities' with ID 'LA'
    await db.collection("cities").document("LA").set(data)

    Use the Set() method:

    // Add a new document in collection 'cities'
    db->Collection("cities")
        .Document("LA")
        .Set({{"name", FieldValue::String("Los Angeles")},
              {"state", FieldValue::String("CA")},
              {"country", FieldValue::String("USA")}})
        .OnCompletion([](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });

    Use the set() method:

    const data = {
      name: 'Los Angeles',
      state: 'CA',
      country: 'USA'
    };
    
    // Add a new document in collection "cities" with ID 'LA'
    const res = await db.collection('cities').doc('LA').set(data);

    Use the Set() method:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsMap(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, map[string]interface{}{
    		"name":    "Los Angeles",
    		"state":   "CA",
    		"country": "USA",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    Use the set() method:

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $data = [
        'name' => 'Los Angeles',
        'state' => 'CA',
        'country' => 'USA'
    ];
    $db->collection('samples/php/cities')->document('LA')->set($data);

    Use the SetAsync() method:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Los Angeles" },
    	{ "State", "CA" },
    	{ "Country", "USA" }
    };
    docRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log("Added data to the LA document in the cities collection.");
    });

    Use the SetAsync() method:

    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "name", "Los Angeles" },
        { "state", "CA" },
        { "country", "USA" }
    };
    await docRef.SetAsync(city);

    Use the set() method:

    city_ref = firestore.doc "#{collection_path}/LA"
    
    data = {
      name:    "Los Angeles",
      state:   "CA",
      country: "USA"
    }
    
    city_ref.set data

    If the document does not exist, it will be created. If the document does exist, its contents will be overwritten with the newly provided data, unless you specify that the data should be merged into the existing document, as follows:

    import { doc, setDoc } from "firebase/firestore"; 
    
    const cityRef = doc(db, 'cities', 'BJ');
    setDoc(cityRef, { capital: true }, { merge: true });
    var cityRef = db.collection('cities').doc('BJ');
    
    var setWithMerge = cityRef.set({
        capital: true
    }, { merge: true });
    Note: This product is not available on watchOS and App Clip targets.
    // Update one field, creating the document if it does not exist.
    db.collection("cities").document("BJ").setData([ "capital": true ], merge: true)
    Note: This product is not available on watchOS and App Clip targets.
    // Write to the document reference, merging data with existing
    // if the document already exists
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"BJ"]
         setData:@{ @"capital": @YES }
         merge:YES
         completion:^(NSError * _Nullable error) {
           // ...
         }];
    // Update one field, creating the document if it does not already exist.
    val data = hashMapOf("capital" to true)
    
    db.collection("cities").document("BJ")
        .set(data, SetOptions.merge())
    // Update one field, creating the document if it does not already exist.
    Map<String, Object> data = new HashMap<>();
    data.put("capital", true);
    
    db.collection("cities").document("BJ")
            .set(data, SetOptions.merge());
    // Update one field, creating the document if it does not already exist.
    final data = {"capital": true};
    
    db.collection("cities").doc("BJ").set(data, SetOptions(merge: true));
    // asynchronously update doc, create the document if missing
    Map<String, Object> update = new HashMap<>();
    update.put("capital", true);
    
    ApiFuture<WriteResult> writeResult =
        db.collection("cities").document("BJ").set(update, SetOptions.merge());
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    city_ref = db.collection("cities").document("BJ")
    
    city_ref.set({"capital": True}, merge=True)
    city_ref = db.collection("cities").document("BJ")
    
    await city_ref.set({"capital": True}, merge=True)
    db->Collection("cities").Document("BJ").Set(
        {{"capital", FieldValue::Boolean(true)}}, SetOptions::Merge());
    const cityRef = db.collection('cities').doc('BJ');
    
    const res = await cityRef.set({
      capital: true
    }, { merge: true });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocCreateIfMissing(ctx context.Context, client *firestore.Client) error {
    	_, err := client.Collection("cities").Doc("BJ").Set(ctx, map[string]interface{}{
    		"capital": true,
    	}, firestore.MergeAll)
    
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $cityRef = $db->collection('samples/php/cities')->document('BJ');
    $cityRef->set([
        'capital' => true
    ], ['merge' => true]);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
    	{ "capital", false }
    };
    docRef.SetAsync(update, SetOptions.MergeAll);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    Dictionary<string, object> update = new Dictionary<string, object>
    {
        { "capital", false }
    };
    await docRef.SetAsync(update, SetOptions.MergeAll);
    city_ref = firestore.doc "#{collection_path}/LA"
    city_ref.set({ capital: false }, merge: true)

    If you're not sure whether the document exists, pass the option to merge the new data with any existing document to avoid overwriting entire documents. For documents that contain maps, if you specify a set with a field that contains an empty map, the map field of the target document is overwritten.

    انواع داده ها

    Cloud Firestore lets you write a variety of data types inside a document, including strings, booleans, numbers, dates, null, and nested arrays and objects. Cloud Firestore always stores numbers as doubles, regardless of what type of number you use in your code.

    import { doc, setDoc, Timestamp } from "firebase/firestore"; 
    
    const docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    await setDoc(doc(db, "data", "one"), docData);
    var docData = {
        stringExample: "Hello world!",
        booleanExample: true,
        numberExample: 3.14159265,
        dateExample: firebase.firestore.Timestamp.fromDate(new Date("December 10, 1815")),
        arrayExample: [5, true, "hello"],
        nullExample: null,
        objectExample: {
            a: 5,
            b: {
                nested: "foo"
            }
        }
    };
    db.collection("data").doc("one").set(docData).then(() => {
        console.log("Document successfully written!");
    });
    Note: This product is not available on watchOS and App Clip targets.
    let docData: [String: Any] = [
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp(date: Date()),
      "arrayExample": [5, true, "hello"],
      "nullExample": NSNull(),
      "objectExample": [
        "a": 5,
        "b": [
          "nested": "foo"
        ]
      ]
    ]
    do {
      try await db.collection("data").document("one").setData(docData)
      print("Document successfully written!")
    } catch {
      print("Error writing document: \(error)")
    }
    Note: This product is not available on watchOS and App Clip targets.
    NSDictionary *docData = @{
      @"stringExample": @"Hello world!",
      @"booleanExample": @YES,
      @"numberExample": @3.14,
      @"dateExample": [FIRTimestamp timestampWithDate:[NSDate date]],
      @"arrayExample": @[@5, @YES, @"hello"],
      @"nullExample": [NSNull null],
      @"objectExample": @{
        @"a": @5,
        @"b": @{
          @"nested": @"foo"
        }
      }
    };
    
    [[[self.db collectionWithPath:@"data"] documentWithPath:@"one"] setData:docData
        completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error writing document: %@", error);
          } else {
            NSLog(@"Document successfully written!");
          }
        }];
    val docData = hashMapOf(
        "stringExample" to "Hello world!",
        "booleanExample" to true,
        "numberExample" to 3.14159265,
        "dateExample" to Timestamp(Date()),
        "listExample" to arrayListOf(1, 2, 3),
        "nullExample" to null,
    )
    
    val nestedData = hashMapOf(
        "a" to 5,
        "b" to true,
    )
    
    docData["objectExample"] = nestedData
    
    db.collection("data").document("one")
        .set(docData)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello world!");
    docData.put("booleanExample", true);
    docData.put("numberExample", 3.14159265);
    docData.put("dateExample", new Timestamp(new Date()));
    docData.put("listExample", Arrays.asList(1, 2, 3));
    docData.put("nullExample", null);
    
    Map<String, Object> nestedData = new HashMap<>();
    nestedData.put("a", 5);
    nestedData.put("b", true);
    
    docData.put("objectExample", nestedData);
    
    db.collection("data").document("one")
            .set(docData)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully written!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error writing document", e);
                }
            });
    final docData = {
      "stringExample": "Hello world!",
      "booleanExample": true,
      "numberExample": 3.14159265,
      "dateExample": Timestamp.now(),
      "listExample": [1, 2, 3],
      "nullExample": null
    };
    
    final nestedData = {
      "a": 5,
      "b": true,
    };
    
    docData["objectExample"] = nestedData;
    
    db
        .collection("data")
        .doc("one")
        .set(docData)
        .onError((e, _) => print("Error writing document: $e"));
    Map<String, Object> docData = new HashMap<>();
    docData.put("stringExample", "Hello, World");
    docData.put("booleanExample", false);
    docData.put("numberExample", 3.14159265);
    docData.put("nullExample", null);
    
    ArrayList<Object> arrayExample = new ArrayList<>();
    Collections.addAll(arrayExample, 5L, true, "hello");
    docData.put("arrayExample", arrayExample);
    
    Map<String, Object> objectExample = new HashMap<>();
    objectExample.put("a", 5L);
    objectExample.put("b", true);
    
    docData.put("objectExample", objectExample);
    
    ApiFuture<WriteResult> future = db.collection("data").document("one").set(docData);
    System.out.println("Update time : " + future.get().getUpdateTime());
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    db.collection("data").document("one").set(data)
    data = {
        "stringExample": "Hello, World!",
        "booleanExample": True,
        "numberExample": 3.14159265,
        "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
        "arrayExample": [5, True, "hello"],
        "nullExample": None,
        "objectExample": {"a": 5, "b": True},
    }
    
    await db.collection("data").document("one").set(data)
    MapFieldValue doc_data{
        {"stringExample", FieldValue::String("Hello world!")},
        {"booleanExample", FieldValue::Boolean(true)},
        {"numberExample", FieldValue::Double(3.14159265)},
        {"dateExample", FieldValue::Timestamp(Timestamp::Now())},
        {"arrayExample", FieldValue::Array({FieldValue::Integer(1),
                                            FieldValue::Integer(2),
                                            FieldValue::Integer(3)})},
        {"nullExample", FieldValue::Null()},
        {"objectExample",
         FieldValue::Map(
             {{"a", FieldValue::Integer(5)},
              {"b", FieldValue::Map(
                        {{"nested", FieldValue::String("foo")}})}})},
    };
    
    db->Collection("data").Document("one").Set(doc_data).OnCompletion(
        [](const Future<void>& future) {
          if (future.error() == Error::kErrorOk) {
            std::cout << "DocumentSnapshot successfully written!" << std::endl;
          } else {
            std::cout << "Error writing document: " << future.error_message()
                      << std::endl;
          }
        });
    const data = {
      stringExample: 'Hello, World!',
      booleanExample: true,
      numberExample: 3.14159265,
      dateExample: Timestamp.fromDate(new Date('December 10, 1815')),
      arrayExample: [5, true, 'hello'],
      nullExample: null,
      objectExample: {
        a: 5,
        b: true
      }
    };
    
    const res = await db.collection('data').doc('one').set(data);
    
    import (
    	"context"
    	"log"
    	"time"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocDataTypes(ctx context.Context, client *firestore.Client) error {
    	doc := make(map[string]interface{})
    	doc["stringExample"] = "Hello world!"
    	doc["booleanExample"] = true
    	doc["numberExample"] = 3.14159265
    	doc["dateExample"] = time.Now()
    	doc["arrayExample"] = []interface{}{5, true, "hello"}
    	doc["nullExample"] = nil
    	doc["objectExample"] = map[string]interface{}{
    		"a": 5,
    		"b": true,
    	}
    
    	_, err := client.Collection("data").Doc("one").Set(ctx, doc)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $data = [
        'stringExample' => 'Hello World',
        'booleanExample' => true,
        'numberExample' => 3.14159265,
        'dateExample' => new Timestamp(new DateTime()),
        'arrayExample' => array(5, true, 'hello'),
        'nullExample' => null,
        'objectExample' => ['a' => 5, 'b' => true],
        'documentReferenceExample' => $db->collection('samples/php/data')->document('two'),
    ];
    $db->collection('samples/php/data')->document('one')->set($data);
    printf('Set multiple data-type data for the one document in the data collection.' . PHP_EOL);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
    	{ "stringExample", "Hello World" },
    	{ "booleanExample", false },
    	{ "numberExample", 3.14159265 },
    	{ "nullExample", null },
    	{ "arrayExample", new List<object>() { 5, true, "Hello" } },
    	{ "objectExample", new Dictionary<string, object>
    		{
    			{ "a", 5 },
    			{ "b", true },
    		}
    	},
    };
    
    docRef.SetAsync(docData);
    DocumentReference docRef = db.Collection("data").Document("one");
    Dictionary<string, object> docData = new Dictionary<string, object>
    {
        { "stringExample", "Hello World" },
        { "booleanExample", false },
        { "numberExample", 3.14159265 },
        { "nullExample", null },
        { "arrayExample", new object[] { 5, true, "Hello" } },
        { "objectExample", new Dictionary<string, object>
            {
                { "a", 5 },
                { "b", true},
            }
        }
    };
    
    await docRef.SetAsync(docData);
    doc_ref = firestore.doc "#{collection_path}/one"
    
    data = {
      stringExample:  "Hello, World!",
      booleanExample: true,
      numberExample:  3.14159265,
      dateExample:    DateTime.now,
      arrayExample:   [5, true, "hello"],
      nullExample:    nil,
      objectExample:  {
        a: 5,
        b: true
      }
    }
    
    doc_ref.set data

    اشیاء سفارشی

    Using Map or Dictionary objects to represent your documents is often inconvenient, so Cloud Firestore supports writing documents with custom classes. Cloud Firestore converts the objects to supported data types.

    Using custom classes, you can rewrite the initial example in the following way:

    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    const cityConverter = {
        toFirestore: (city) => {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: (snapshot, options) => {
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    class City {
        constructor (name, state, country ) {
            this.name = name;
            this.state = state;
            this.country = country;
        }
        toString() {
            return this.name + ', ' + this.state + ', ' + this.country;
        }
    }
    
    // Firestore data converter
    var cityConverter = {
        toFirestore: function(city) {
            return {
                name: city.name,
                state: city.state,
                country: city.country
                };
        },
        fromFirestore: function(snapshot, options){
            const data = snapshot.data(options);
            return new City(data.name, data.state, data.country);
        }
    };
    Note: This product is not available on watchOS and App Clip targets.
    public struct City: Codable {
    
      let name: String
      let state: String?
      let country: String?
      let isCapital: Bool?
      let population: Int64?
    
      enum CodingKeys: String, CodingKey {
        case name
        case state
        case country
        case isCapital = "capital"
        case population
      }
    
    }
    Note: This product is not available on watchOS and App Clip targets.
    // This isn't supported in Objective-C.
      
    data class City(
        val name: String? = null,
        val state: String? = null,
        val country: String? = null,
        @field:JvmField // use this annotation if your Boolean field is prefixed with 'is'
        val isCapital: Boolean? = null,
        val population: Long? = null,
        val regions: List<String>? = null,
    )

    Each custom class must have a public constructor that takes no arguments. In addition, the class must include a public getter for each property.

    public class City {
    
    
        private String name;
        private String state;
        private String country;
        private boolean capital;
        private long population;
        private List<String> regions;
    
        public City() {}
    
        public City(String name, String state, String country, boolean capital, long population, List<String> regions) {
            // ...
        }
    
        public String getName() {
            return name;
        }
    
        public String getState() {
            return state;
        }
    
        public String getCountry() {
            return country;
        }
    
        public boolean isCapital() {
            return capital;
        }
    
        public long getPopulation() {
            return population;
        }
    
        public List<String> getRegions() {
            return regions;
        }
    
    }
    class City {
      final String? name;
      final String? state;
      final String? country;
      final bool? capital;
      final int? population;
      final List<String>? regions;
    
      City({
        this.name,
        this.state,
        this.country,
        this.capital,
        this.population,
        this.regions,
      });
    
      factory City.fromFirestore(
        DocumentSnapshot<Map<String, dynamic>> snapshot,
        SnapshotOptions? options,
      ) {
        final data = snapshot.data();
        return City(
          name: data?['name'],
          state: data?['state'],
          country: data?['country'],
          capital: data?['capital'],
          population: data?['population'],
          regions:
              data?['regions'] is Iterable ? List.from(data?['regions']) : null,
        );
      }
    
      Map<String, dynamic> toFirestore() {
        return {
          if (name != null) "name": name,
          if (state != null) "state": state,
          if (country != null) "country": country,
          if (capital != null) "capital": capital,
          if (population != null) "population": population,
          if (regions != null) "regions": regions,
        };
      }
    }
    public City() {
      // Must have a public no-argument constructor
    }
    
    // Initialize all fields of a city
    public City(
        String name,
        String state,
        String country,
        Boolean capital,
        Long population,
        List<String> regions) {
      this.name = name;
      this.state = state;
      this.country = country;
      this.capital = capital;
      this.population = population;
      this.regions = regions;
    }
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    class City:
        def __init__(self, name, state, country, capital=False, population=0, regions=[]):
            self.name = name
            self.state = state
            self.country = country
            self.capital = capital
            self.population = population
            self.regions = regions
    
        @staticmethod
        def from_dict(source):
            # ...
    
        def to_dict(self):
            # ...
    
        def __repr__(self):
            return f"City(\
                    name={self.name}, \
                    country={self.country}, \
                    population={self.population}, \
                    capital={self.capital}, \
                    regions={self.regions}\
                )"
    
    
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    // City represents a city.
    type City struct {
    	Name       string   `firestore:"name,omitempty"`
    	State      string   `firestore:"state,omitempty"`
    	Country    string   `firestore:"country,omitempty"`
    	Capital    bool     `firestore:"capital,omitempty"`
    	Population int64    `firestore:"population,omitempty"`
    	Density    int64    `firestore:"density,omitempty"`
    	Regions    []string `firestore:"regions,omitempty"`
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    class City
    {
        /** @var string */
        public $name;
        /** @var string */
        public $state;
        /** @var string */
        public $country;
        /** @var bool */
        public $capital;
        /** @var int */
        public $population;
        /** @var array<string> */
        public $regions;
    
        /**
         * @param array<string> $regions
         */
        public function __construct(
            string $name,
            string $state,
            string $country,
            bool $capital = false,
            int $population = 0,
            array $regions = []
        ) {
            $this->name = $name;
            $this->state = $state;
            $this->country = $country;
            $this->capital = $capital;
            $this->population = $population;
            $this->regions = $regions;
        }
    
        /**
         * @param array<mixed> $source
         */
        public static function fromArray(array $source): City
        {
            // implementation of fromArray is excluded for brevity
            # ...
        }
    
        /**
         * @return array<mixed>
         */
        public function toArray(): array
        {
            // implementation of toArray is excluded for brevity
            # ...
        }
    
        public function __toString()
        {
            // implementation of __toString is excluded for brevity
            # ...
        }
    }
    
    [FirestoreData]
    public class City
    {
    	[FirestoreProperty]
    	public string Name { get; set; }
    
    	[FirestoreProperty]
    	public string State { get; set; }
    
    	[FirestoreProperty]
    	public string Country { get; set; }
    
    	[FirestoreProperty]
    	public bool Capital { get; set; }
    
    	[FirestoreProperty]
    	public long Population { get; set; }
    }
    [FirestoreData]
    public class City
    {
        [FirestoreProperty]
        public string Name { get; set; }
    
        [FirestoreProperty]
        public string State { get; set; }
    
        [FirestoreProperty]
        public string Country { get; set; }
    
        [FirestoreProperty]
        public bool Capital { get; set; }
    
        [FirestoreProperty]
        public long Population { get; set; }
    }
    // This isn't supported in Ruby
    import { doc, setDoc } from "firebase/firestore"; 
    
    // Set with cityConverter
    const ref = doc(db, "cities", "LA").withConverter(cityConverter);
    await setDoc(ref, new City("Los Angeles", "CA", "USA"));
    // Set with cityConverter
    db.collection("cities").doc("LA")
      .withConverter(cityConverter)
      .set(new City("Los Angeles", "CA", "USA"));
    Note: This product is not available on watchOS and App Clip targets.
    let city = City(name: "Los Angeles",
                    state: "CA",
                    country: "USA",
                    isCapital: false,
                    population: 5000000)
    
    do {
      try db.collection("cities").document("LA").setData(from: city)
    } catch let error {
      print("Error writing city to Firestore: \(error)")
    }
    Note: This product is not available on watchOS and App Clip targets.
    // This isn't supported in Objective-C.
      
    val city = City(
        "Los Angeles",
        "CA",
        "USA",
        false,
        5000000L,
        listOf("west_coast", "socal"),
    )
    db.collection("cities").document("LA").set(city)
    City city = new City("Los Angeles", "CA", "USA",
            false, 5000000L, Arrays.asList("west_coast", "sorcal"));
    db.collection("cities").document("LA").set(city);
    final city = City(
      name: "Los Angeles",
      state: "CA",
      country: "USA",
      capital: false,
      population: 5000000,
      regions: ["west_coast", "socal"],
    );
    final docRef = db
        .collection("cities")
        .withConverter(
          fromFirestore: City.fromFirestore,
          toFirestore: (City city, options) => city.toFirestore(),
        )
        .doc("LA");
    await docRef.set(city);
    City city =
        new City("Los Angeles", "CA", "USA", false, 3900000L, Arrays.asList("west_coast", "socal"));
    ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(city);
    // block on response if required
    System.out.println("Update time : " + future.get().getUpdateTime());
    city = City(name="Los Angeles", state="CA", country="USA")
    db.collection("cities").document("LA").set(city.to_dict())
    city = City(name="Los Angeles", state="CA", country="USA")
    await db.collection("cities").document("LA").set(city.to_dict())
    // This is not yet supported.
    // Node.js uses JavaScript objects
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAsEntity(ctx context.Context, client *firestore.Client) error {
    	city := City{
    		Name:    "Los Angeles",
    		Country: "USA",
    	}
    	_, err := client.Collection("cities").Doc("LA").Set(ctx, city)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    
    // This isn't supported in PHP.
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
    	Name = "Los Angeles",
    	State = "CA",
    	Country = "USA",
    	Capital = false,
    	Population = 3900000L
    };
    docRef.SetAsync(city);
    DocumentReference docRef = db.Collection("cities").Document("LA");
    City city = new City
    {
        Name = "Los Angeles",
        State = "CA",
        Country = "USA",
        Capital = false,
        Population = 3900000L
    };
    await docRef.SetAsync(city);
    // This isn't supported in Ruby.

    Add a document

    When you use set() to create a document, you must specify an ID for the document to create, as shown in the following example:

    import { doc, setDoc } from "firebase/firestore"; 
    
    await setDoc(doc(db, "cities", "new-city-id"), data);
    db.collection("cities").doc("new-city-id").set(data);
    Note: This product is not available on watchOS and App Clip targets.
    db.collection("cities").document("new-city-id").setData(data)
    Note: This product is not available on watchOS and App Clip targets.
    [[[self.db collectionWithPath:@"cities"] documentWithPath:@"new-city-id"]
        setData:data];
    db.collection("cities").document("new-city-id").set(data)
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").doc("new-city-id").set({"name": "Chicago"});
    db.collection("cities").document("new-city-id").set(data);
    db.collection("cities").document("new-city-id").set(data)
    await db.collection("cities").document("new-city-id").set(data)
    db->Collection("cities").Document("SF").Set({/*some data*/});
    await db.collection('cities').doc('new-city-id').set(data);
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithID(ctx context.Context, client *firestore.Client) error {
    	var data = make(map[string]interface{})
    
    	_, err := client.Collection("cities").Doc("new-city-id").Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $db->collection('samples/php/cities')->document('new-city-id')->set($data);
    db.Collection("cities").Document("new-city-id").SetAsync(city);
    await db.Collection("cities").Document("new-city-id").SetAsync(city);
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.set data

    If there isn't a meaningful ID for the document, Cloud Firestore can auto-generate an ID for you. You can call the following language-specific add() methods:

    Use the addDoc() method:

    import { collection, addDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id.
    const docRef = await addDoc(collection(db, "cities"), {
      name: "Tokyo",
      country: "Japan"
    });
    console.log("Document written with ID: ", docRef.id);

    Use the add() method:

    // Add a new document with a generated id.
    db.collection("cities").add({
        name: "Tokyo",
        country: "Japan"
    })
    .then((docRef) => {
        console.log("Document written with ID: ", docRef.id);
    })
    .catch((error) => {
        console.error("Error adding document: ", error);
    });

    Use the addDocument() method:

    Note: This product is not available on watchOS and App Clip targets.
    // Add a new document with a generated id.
    do {
      let ref = try await db.collection("cities").addDocument(data: [
        "name": "Tokyo",
        "country": "Japan"
      ])
      print("Document added with ID: \(ref.documentID)")
    } catch {
      print("Error adding document: \(error)")
    }

    Use the addDocumentWithData: method:

    Note: This product is not available on watchOS and App Clip targets.
    // Add a new document with a generated id.
    __block FIRDocumentReference *ref =
        [[self.db collectionWithPath:@"cities"] addDocumentWithData:@{
          @"name": @"Tokyo",
          @"country": @"Japan"
        } completion:^(NSError * _Nullable error) {
          if (error != nil) {
            NSLog(@"Error adding document: %@", error);
          } else {
            NSLog(@"Document added with ID: %@", ref.documentID);
          }
        }];

    Use the add() method:

    // Add a new document with a generated id.
    val data = hashMapOf(
        "name" to "Tokyo",
        "country" to "Japan",
    )
    
    db.collection("cities")
        .add(data)
        .addOnSuccessListener { documentReference ->
            Log.d(TAG, "DocumentSnapshot written with ID: ${documentReference.id}")
        }
        .addOnFailureListener { e ->
            Log.w(TAG, "Error adding document", e)
        }

    Use the add() method:

    // Add a new document with a generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    
    db.collection("cities")
            .add(data)
            .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                @Override
                public void onSuccess(DocumentReference documentReference) {
                    Log.d(TAG, "DocumentSnapshot written with ID: " + documentReference.getId());
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error adding document", e);
                }
            });

    Use the add() method:

    // Add a new document with a generated id.
    final data = {"name": "Tokyo", "country": "Japan"};
    
    db.collection("cities").add(data).then((documentSnapshot) =>
        print("Added Data with ID: ${documentSnapshot.id}"));

    Use the add() method:

    // Add document data with auto-generated id.
    Map<String, Object> data = new HashMap<>();
    data.put("name", "Tokyo");
    data.put("country", "Japan");
    ApiFuture<DocumentReference> addedDocRef = db.collection("cities").add(data);
    System.out.println("Added document with ID: " + addedDocRef.get().getId());

    Use the add() method:

    city = {"name": "Tokyo", "country": "Japan"}
    update_time, city_ref = db.collection("cities").add(city)
    print(f"Added document with id {city_ref.id}")

    Use the add() method:

    city = City(name="Tokyo", state=None, country="Japan")
    await db.collection("cities").add(city.to_dict())

    Use the Add() method:

    db->Collection("cities").Add({/*some data*/});

    Use the add() method:

    // Add a new document with a generated id.
    const res = await db.collection('cities').add({
      name: 'Tokyo',
      country: 'Japan'
    });
    
    console.log('Added document with ID: ', res.id);

    Use the Add() method:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocWithoutID(ctx context.Context, client *firestore.Client) error {
    	_, _, err := client.Collection("cities").Add(ctx, map[string]interface{}{
    		"name":    "Tokyo",
    		"country": "Japan",
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    Use the add() method:

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $data = [
        'name' => 'Tokyo',
        'country' => 'Japan'
    ];
    $addedDocRef = $db->collection('samples/php/cities')->add($data);
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());

    Use the AddAsync() method:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
    	{ "Name", "Tokyo" },
    	{ "Country", "Japan" }
    };
    db.Collection("cities").AddAsync(city).ContinueWithOnMainThread(task => {
    	DocumentReference addedDocRef = task.Result;
    	Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    });

    Use the AddAsync() method:

    Dictionary<string, object> city = new Dictionary<string, object>
    {
        { "Name", "Tokyo" },
        { "Country", "Japan" }
    };
    DocumentReference addedDocRef = await db.Collection("cities").AddAsync(city);
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);

    Use the add() method:

    data = {
      name:    "Tokyo",
      country: "Japan"
    }
    
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.add data
    puts "Added document with ID: #{added_doc_ref.document_id}."

    In some cases, it can be useful to create a document reference with an auto-generated ID, then use the reference later. For this use case, you can call doc() in the following way:

    import { collection, doc, setDoc } from "firebase/firestore"; 
    
    // Add a new document with a generated id
    const newCityRef = doc(collection(db, "cities"));
    
    // later...
    await setDoc(newCityRef, data);
    // Add a new document with a generated id.
    var newCityRef = db.collection("cities").doc();
    
    // later...
    newCityRef.set(data);
    Note: This product is not available on watchOS and App Clip targets.
    let newCityRef = db.collection("cities").document()
    
    // later...
    newCityRef.setData([
      // ...
    ])
    Note: This product is not available on watchOS and App Clip targets.
    FIRDocumentReference *newCityRef = [[self.db collectionWithPath:@"cities"] documentWithAutoID];
    // later...
    [newCityRef setData:@{ /* ... */ }];
    val data = HashMap<String, Any>()
    
    val newCityRef = db.collection("cities").document()
    
    // Later...
    newCityRef.set(data)
    Map<String, Object> data = new HashMap<>();
    
    DocumentReference newCityRef = db.collection("cities").document();
    
    // Later...
    newCityRef.set(data);
    // Add a new document with a generated id.
    final data = <String, dynamic>{};
    
    final newCityRef = db.collection("cities").doc();
    
    // Later...
    newCityRef.set(data);
    
    // Add document data after generating an id.
    DocumentReference addedDocRef = db.collection("cities").document();
    System.out.println("Added document with ID: " + addedDocRef.getId());
    
    // later...
    ApiFuture<WriteResult> writeResult = addedDocRef.set(data);
    new_city_ref = db.collection("cities").document()
    
    # later...
    new_city_ref.set(
        {
            # ...
        }
    )
    new_city_ref = db.collection("cities").document()
    
    # later...
    await new_city_ref.set(
        {
            # ...
        }
    )
    DocumentReference new_city_ref = db->Collection("cities").Document();
    const newCityRef = db.collection('cities').doc();
    
    // Later...
    const res = await newCityRef.set({
      // ...
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func addDocAfterAutoGeneratedID(ctx context.Context, client *firestore.Client) error {
    	data := City{
    		Name:    "Sydney",
    		Country: "Australia",
    	}
    
    	ref := client.Collection("cities").NewDoc()
    
    	// later...
    	_, err := ref.Set(ctx, data)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $addedDocRef = $db->collection('samples/php/cities')->newDocument();
    printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());
    $addedDocRef->set($data);
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
    addedDocRef.SetAsync(city).ContinueWithOnMainThread(task => {
    	Debug.Log(String.Format(
    		"Added data to the {0} document in the cities collection.", addedDocRef.Id));
    });
    DocumentReference addedDocRef = db.Collection("cities").Document();
    Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);
    await addedDocRef.SetAsync(city);
    cities_ref = firestore.col collection_path
    
    added_doc_ref = cities_ref.doc
    puts "Added document with ID: #{added_doc_ref.document_id}."
    
    added_doc_ref.set data

    In the backend, .add(...) and .doc().set(...) are equivalent, so you can use either option.

    یک سند را به روز کنید

    To update some fields of a document without overwriting the entire document, use the following language-specific update() methods:

    Use the updateDoc() method:

    import { doc, updateDoc } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Set the "capital" field of the city 'DC'
    await updateDoc(washingtonRef, {
      capital: true
    });

    Use the update() method:

    var washingtonRef = db.collection("cities").doc("DC");
    
    // Set the "capital" field of the city 'DC'
    return washingtonRef.update({
        capital: true
    })
    .then(() => {
        console.log("Document successfully updated!");
    })
    .catch((error) => {
        // The document probably doesn't exist.
        console.error("Error updating document: ", error);
    });

    Use the updateData() method:

    Note: This product is not available on watchOS and App Clip targets.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Set the "capital" field of the city 'DC'
    do {
      try await washingtonRef.updateData([
        "capital": true
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }

    Use the updateData: method:

    Note: This product is not available on watchOS and App Clip targets.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    // Set the "capital" field of the city
    [washingtonRef updateData:@{
      @"capital": @YES
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];

    Use the update() method:

    val washingtonRef = db.collection("cities").document("DC")
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
        .update("capital", true)
        .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully updated!") }
        .addOnFailureListener { e -> Log.w(TAG, "Error updating document", e) }

    Use the update() method:

    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Set the "isCapital" field of the city 'DC'
    washingtonRef
            .update("capital", true)
            .addOnSuccessListener(new OnSuccessListener<Void>() {
                @Override
                public void onSuccess(Void aVoid) {
                    Log.d(TAG, "DocumentSnapshot successfully updated!");
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Log.w(TAG, "Error updating document", e);
                }
            });

    Use the update() method:

    final washingtonRef = db.collection("cites").doc("DC");
    washingtonRef.update({"capital": true}).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));

    Use the update() method:

    // Update an existing document
    DocumentReference docRef = db.collection("cities").document("DC");
    
    // (async) Update one field
    ApiFuture<WriteResult> future = docRef.update("capital", true);
    
    // ...
    WriteResult result = future.get();
    System.out.println("Write result: " + result);

    Use the update() method:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    city_ref.update({"capital": True})

    Use the update() method:

    city_ref = db.collection("cities").document("DC")
    
    # Set the capital field
    await city_ref.update({"capital": True})

    Use the Update() method:

    DocumentReference washington_ref = db->Collection("cities").Document("DC");
    // Set the "capital" field of the city "DC".
    washington_ref.Update({{"capital", FieldValue::Boolean(true)}});

    Use the update() method:

    const cityRef = db.collection('cities').doc('DC');
    
    // Set the 'capital' field of the city
    const res = await cityRef.update({capital: true});

    Use the Update() method:

    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDoc(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("cities").Doc("DC").Update(ctx, []firestore.Update{
    		{
    			Path:  "capital",
    			Value: true,
    		},
    	})
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    Use the update() method:

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    $cityRef->update([
        ['path' => 'capital', 'value' => true]
    ]);

    Use the UpdateAsync() method:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
    	{ "Capital", false }
    };
    
    cityRef.UpdateAsync(updates).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the Capital field of the new-city-id document in the cities collection.");
    });
    // You can also update a single field with: cityRef.UpdateAsync("Capital", false);

    Use the UpdateAsync() method:

    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Capital", false }
    };
    await cityRef.UpdateAsync(updates);
    
    // You can also update a single field with: await cityRef.UpdateAsync("Capital", false);

    Use the update() method:

    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ capital: true })

    مهر زمان سرور

    You can set a field in your document to a server timestamp which tracks when the server receives the update.

    import { updateDoc, serverTimestamp } from "firebase/firestore";
    
    const docRef = doc(db, 'objects', 'some-id');
    
    // Update the timestamp field with the value from the server
    const updateTimestamp = await updateDoc(docRef, {
        timestamp: serverTimestamp()
    });
    var docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    var updateTimestamp = docRef.update({
        timestamp: firebase.firestore.FieldValue.serverTimestamp()
    });
    Note: This product is not available on watchOS and App Clip targets.
    do {
      try await db.collection("objects").document("some-id").updateData([
        "lastUpdated": FieldValue.serverTimestamp(),
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    Note: This product is not available on watchOS and App Clip targets.
    [[[self.db collectionWithPath:@"objects"] documentWithPath:@"some-id"] updateData:@{
      @"lastUpdated": [FIRFieldValue fieldValueForServerTimestamp]
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // If you're using custom Kotlin objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    val docRef = db.collection("objects").document("some-id")
    
    // Update the timestamp field with the value from the server
    val updates = hashMapOf<String, Any>(
        "timestamp" to FieldValue.serverTimestamp(),
    )
    
    docRef.update(updates).addOnCompleteListener { }
    // If you're using custom Java objects in Android, add an @ServerTimestamp
    // annotation to a Date field for your custom object classes. This indicates
    // that the Date field should be treated as a server timestamp by the object mapper.
    DocumentReference docRef = db.collection("objects").document("some-id");
    
    // Update the timestamp field with the value from the server
    Map<String,Object> updates = new HashMap<>();
    updates.put("timestamp", FieldValue.serverTimestamp());
    
    docRef.update(updates).addOnCompleteListener(new OnCompleteListener<Void>() {
        // ...
        // ...
    final docRef = db.collection("objects").doc("some-id");
    final updates = <String, dynamic>{
      "timestamp": FieldValue.serverTimestamp(),
    };
    
    docRef.update(updates).then(
        (value) => print("DocumentSnapshot successfully updated!"),
        onError: (e) => print("Error updating document $e"));
    DocumentReference docRef = db.collection("objects").document("some-id");
    // Update the timestamp field with the value from the server
    ApiFuture<WriteResult> writeResult = docRef.update("timestamp", FieldValue.serverTimestamp());
    System.out.println("Update time : " + writeResult.get());
    city_ref = db.collection("objects").document("some-id")
    city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    city_ref = db.collection("objects").document("some-id")
    await city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
    DocumentReference doc_ref = db->Collection("objects").Document("some-id");
    doc_ref.Update({{"timestamp", FieldValue::ServerTimestamp()}})
        .OnCompletion([](const Future<void>& future) {
          // ...
        });
    // Create a document reference
    const docRef = db.collection('objects').doc('some-id');
    
    // Update the timestamp field with the value from the server
    const res = await docRef.update({
      timestamp: FieldValue.serverTimestamp()
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocServerTimestamp(ctx context.Context, client *firestore.Client) error {
    	// ...
    
    	_, err := client.Collection("objects").Doc("some-id").Set(ctx, map[string]interface{}{
    		"timestamp": firestore.ServerTimestamp,
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $docRef = $db->collection('samples/php/objects')->document('some-id');
    $docRef->update([
        ['path' => 'timestamp', 'value' => FieldValue::serverTimestamp()]
    ]);
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    cityRef.UpdateAsync("Timestamp", FieldValue.ServerTimestamp)
    	.ContinueWithOnMainThread(task => {
    		Debug.Log(
    			"Updated the Timestamp field of the new-city-id document in the cities "
    			+ "collection.");
    	});
    DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
    await cityRef.UpdateAsync("Timestamp", Timestamp.GetCurrentTimestamp());
    city_ref = firestore.doc "#{collection_path}/new-city-id"
    city_ref.update({ timestamp: firestore.field_server_time })

    When updating multiple timestamp fields inside of a transaction , each field receives the same server timestamp value.

    Update fields in nested objects

    If your document contains nested objects, you can use the dot notation to reference nested fields within the document when you call update() :

    import { doc, setDoc, updateDoc } from "firebase/firestore"; 
    
    // Create an initial document to update.
    const frankDocRef = doc(db, "users", "frank");
    await setDoc(frankDocRef, {
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    await updateDoc(frankDocRef, {
        "age": 13,
        "favorites.color": "Red"
    });
    // Create an initial document to update.
    var frankDocRef = db.collection("users").doc("frank");
    frankDocRef.set({
        name: "Frank",
        favorites: { food: "Pizza", color: "Blue", subject: "recess" },
        age: 12
    });
    
    // To update age and favorite color:
    db.collection("users").doc("frank").update({
        "age": 13,
        "favorites.color": "Red"
    })
    .then(() => {
        console.log("Document successfully updated!");
    });
    Note: This product is not available on watchOS and App Clip targets.
    // Create an initial document to update.
    let frankDocRef = db.collection("users").document("frank")
    do {
      try await frankDocRef.setData([
        "name": "Frank",
        "favorites": [ "food": "Pizza", "color": "Blue", "subject": "recess" ],
        "age": 12
      ])
    
      // To update age and favorite color:
      try await frankDocRef.updateData([
        "age": 13,
        "favorites.color": "Red"
      ])
      print("Document successfully updated")
    } catch {
      print("Error updating document: \(error)")
    }
    Note: This product is not available on watchOS and App Clip targets.
    // Create an initial document to update.
    FIRDocumentReference *frankDocRef =
        [[self.db collectionWithPath:@"users"] documentWithPath:@"frank"];
    [frankDocRef setData:@{
      @"name": @"Frank",
      @"favorites": @{
        @"food": @"Pizza",
        @"color": @"Blue",
        @"subject": @"recess"
      },
      @"age": @12
    }];
    // To update age and favorite color:
    [frankDocRef updateData:@{
      @"age": @13,
      @"favorites.color": @"Red",
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error updating document: %@", error);
      } else {
        NSLog(@"Document successfully updated");
      }
    }];
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
        .update(
            mapOf(
                "age" to 13,
                "favorites.color" to "Red",
            ),
        )
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db.collection("users").document("frank")
            .update(
                    "age", 13,
                    "favorites.color", "Red"
            );
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    db
        .collection("users")
        .doc("frank")
        .update({"age": 13, "favorites.color": "Red"});
    // Create an initial document to update
    DocumentReference frankDocRef = db.collection("users").document("frank");
    Map<String, Object> initialData = new HashMap<>();
    initialData.put("name", "Frank");
    initialData.put("age", 12);
    
    Map<String, Object> favorites = new HashMap<>();
    favorites.put("food", "Pizza");
    favorites.put("color", "Blue");
    favorites.put("subject", "Recess");
    initialData.put("favorites", favorites);
    
    ApiFuture<WriteResult> initialResult = frankDocRef.set(initialData);
    // Confirm that data has been successfully saved by blocking on the operation
    initialResult.get();
    
    // Update age and favorite color
    Map<String, Object> updates = new HashMap<>();
    updates.put("age", 13);
    updates.put("favorites.color", "Red");
    
    // Async update document
    ApiFuture<WriteResult> writeResult = frankDocRef.update(updates);
    // ...
    System.out.println("Update time : " + writeResult.get().getUpdateTime());
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    frank_ref.update({"age": 13, "favorites.color": "Red"})
    # Create an initial document to update
    frank_ref = db.collection("users").document("frank")
    await frank_ref.set(
        {
            "name": "Frank",
            "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
            "age": 12,
        }
    )
    
    # Update age and favorite color
    await frank_ref.update({"age": 13, "favorites.color": "Red"})
    // Assume the document contains:
    // {
    //   name: "Frank",
    //   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
    //   age: 12
    // }
    //
    // To update age and favorite color:
    db->Collection("users").Document("frank").Update({
        {"age", FieldValue::Integer(13)},
        {"favorites.color", FieldValue::String("red")},
    });
    const initialData = {
      name: 'Frank',
      age: 12,
      favorites: {
        food: 'Pizza',
        color: 'Blue',
        subject: 'recess'
      }
    };
    
    // ...
    const res = await db.collection('users').doc('Frank').update({
      age: 13,
      'favorites.color': 'Red'
    });
    
    import (
    	"context"
    	"log"
    
    	"cloud.google.com/go/firestore"
    )
    
    func updateDocNested(ctx context.Context, client *firestore.Client) error {
    	initialData := map[string]interface{}{
    		"name": "Frank",
    		"age":  12,
    		"favorites": map[string]interface{}{
    			"food":    "Pizza",
    			"color":   "Blue",
    			"subject": "recess",
    		},
    	}
    
    	// ...
    
    	_, err := client.Collection("users").Doc("frank").Set(ctx, map[string]interface{}{
    		"age": 13,
    		"favorites": map[string]interface{}{
    			"color": "Red",
    		},
    	}, firestore.MergeAll)
    	if err != nil {
    		// Handle any errors in an appropriate way, such as returning them.
    		log.Printf("An error has occurred: %s", err)
    	}
    
    	return err
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    // Create an initial document to update
    $frankRef = $db->collection('samples/php/users')->document('frank');
    $frankRef->set([
        'first' => 'Frank',
        'last' => 'Franklin',
        'favorites' => ['food' => 'Pizza', 'color' => 'Blue', 'subject' => 'Recess'],
        'age' => 12
    ]);
    
    // Update age and favorite color
    $frankRef->update([
        ['path' => 'age', 'value' => 13],
        ['path' => 'favorites.color', 'value' => 'Red']
    ]);
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
    	{ "Name", "Frank" },
    	{ "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
    	{ "Food", "Pizza" },
    	{ "Color", "Blue" },
    	{ "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    frankDocRef.SetAsync(initialData).ContinueWithOnMainThread(task => {
    
    	// Update age and favorite color
    	Dictionary<string, object> updates = new Dictionary<string, object>
    	{
    		{ "Age", 13 },
    		{ "Favorites.Color", "Red" },
    	};
    
    	// Asynchronously update the document
    	return frankDocRef.UpdateAsync(updates);
    }).ContinueWithOnMainThread(task => {
    	Debug.Log(
    		"Updated the age and favorite color fields of the Frank document in "
    		+ "the users collection.");
    });
    DocumentReference frankDocRef = db.Collection("users").Document("frank");
    Dictionary<string, object> initialData = new Dictionary<string, object>
    {
        { "Name", "Frank" },
        { "Age", 12 }
    };
    
    Dictionary<string, object> favorites = new Dictionary<string, object>
    {
        { "Food", "Pizza" },
        { "Color", "Blue" },
        { "Subject", "Recess" },
    };
    initialData.Add("Favorites", favorites);
    await frankDocRef.SetAsync(initialData);
    
    // Update age and favorite color
    Dictionary<string, object> updates = new Dictionary<string, object>
    {
        { "Age", 13 },
        { "Favorites.Color", "Red" },
    };
    
    // Asynchronously update the document
    await frankDocRef.UpdateAsync(updates);
    # Create an initial document to update
    frank_ref = firestore.doc "#{collection_path}/frank"
    frank_ref.set(
      {
        name:      "Frank",
        favorites: {
          food:    "Pizza",
          color:   "Blue",
          subject: "Recess"
        },
        age:       12
      }
    )
    
    # Update age and favorite color
    frank_ref.update({ age: 13, "favorites.color": "Red" })

    Dot notation allows you to update a single nested field without overwriting other nested fields. If you update a nested field without dot notation, you will overwrite the entire map field, as shown in the following example:

    وب
    // Create our initial doc
    db.collection("users").doc("frank").set({
      name: "Frank",
      favorites: {
        food: "Pizza",
        color: "Blue",
        subject: "Recess"
      },
      age: 12
    }).then(function() {
      console.log("Frank created");
    });
    
    // Update the doc without using dot notation.
    // Notice the map value for favorites.
    db.collection("users").doc("frank").update({
      favorites: {
        food: "Ice Cream"
      }
    }).then(function() {
      console.log("Frank food updated");
    });
    
    /*
    Ending State, favorite.color and favorite.subject are no longer present:
    /users
        /frank
            {
                name: "Frank",
                favorites: {
                    food: "Ice Cream",
                },
                age: 12
            }
     */

    Update elements in an array

    If your document contains an array field, you can use arrayUnion() and arrayRemove() to add and remove elements. arrayUnion() adds elements to an array but only elements not already present. arrayRemove() removes all instances of each given element.

    import { doc, updateDoc, arrayUnion, arrayRemove } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically add a new region to the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    await updateDoc(washingtonRef, {
        regions: arrayRemove("east_coast")
    });
    var washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayUnion("greater_virginia")
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
        regions: firebase.firestore.FieldValue.arrayRemove("east_coast")
    });
    Note: This product is not available on watchOS and App Clip targets.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayUnion(["greater_virginia"])
    ])
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.updateData([
      "regions": FieldValue.arrayRemove(["east_coast"])
    ])
    Note: This product is not available on watchOS and App Clip targets.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically add a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayUnion:@[@"greater_virginia"]]
    }];
    
    // Atomically remove a new region to the "regions" array field.
    [washingtonRef updateData:@{
      @"regions": [FIRFieldValue fieldValueForArrayRemove:@[@"east_coast"]]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"))
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    final washingtonRef = db.collection("cities").doc("DC");
    
    // Atomically add a new region to the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayUnion(["greater_virginia"]),
    });
    
    // Atomically remove a region from the "regions" array field.
    washingtonRef.update({
      "regions": FieldValue.arrayRemove(["east_coast"]),
    });
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically add a new region to the "regions" array field.
    ApiFuture<WriteResult> arrayUnion =
        washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
    System.out.println("Update time : " + arrayUnion.get());
    
    // Atomically remove a region from the "regions" array field.
    ApiFuture<WriteResult> arrayRm =
        washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
    System.out.println("Update time : " + arrayRm.get());
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    city_ref = db.collection("cities").document("DC")
    
    # Atomically add a new region to the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})
    
    # // Atomically remove a region from the 'regions' array field.
    await city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically add a new region to the "regions" array field.
    const unionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('greater_virginia')
    });
    // Atomically remove a region from the "regions" array field.
    const removeRes = await washingtonRef.update({
      regions: FieldValue.arrayRemove('east_coast')
    });
    
    // To add or remove multiple items, pass multiple arguments to arrayUnion/arrayRemove
    const multipleUnionRes = await washingtonRef.update({
      regions: FieldValue.arrayUnion('south_carolina', 'texas')
      // Alternatively, you can use spread operator in ES6 syntax
      // const newRegions = ['south_carolina', 'texas']
      // regions: FieldValue.arrayUnion(...newRegions)
    });
    // Not supported yet

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically add a new region to the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayUnion(['greater_virginia'])]
    ]);
    
    // Atomically remove a region from the "regions" array field.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::arrayRemove(['east_coast'])]
    ]);
    // This is not yet supported in the Unity SDK
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically add a new region to the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayUnion("greater_virginia"));
    
    // Atomically remove a region from the "regions" array field.
    await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayRemove("east_coast"));
    // Not supported yet

    Increment a numeric value

    You can increment or decrement a numeric field value as shown in the following example. An increment operation increases or decreases the current value of a field by the given amount.

    import { doc, updateDoc, increment } from "firebase/firestore";
    
    const washingtonRef = doc(db, "cities", "DC");
    
    // Atomically increment the population of the city by 50.
    await updateDoc(washingtonRef, {
        population: increment(50)
    });
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update({
        population: firebase.firestore.FieldValue.increment(50)
    });
    Note: This product is not available on watchOS and App Clip targets.
    let washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    washingtonRef.updateData([
      "population": FieldValue.increment(Int64(50))
    ])
    Note: This product is not available on watchOS and App Clip targets.
    FIRDocumentReference *washingtonRef =
        [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
    
    // Atomically increment the population of the city by 50.
    // Note that increment() with no arguments increments by 1.
    [washingtonRef updateData:@{
      @"population": [FIRFieldValue fieldValueForIntegerIncrement:50]
    }];
    val washingtonRef = db.collection("cities").document("DC")
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50))
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update("population", FieldValue.increment(50));
    var washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    washingtonRef.update(
      {"population": FieldValue.increment(50)},
    );
    DocumentReference washingtonRef = db.collection("cities").document("DC");
    
    // Atomically increment the population of the city by 50.
    final ApiFuture<WriteResult> updateFuture =
        washingtonRef.update("population", FieldValue.increment(50));
    washington_ref = db.collection("cities").document("DC")
    
    washington_ref.update({"population": firestore.Increment(50)})
    washington_ref = db.collection("cities").document("DC")
    
    await washington_ref.update({"population": firestore.Increment(50)})
    // This is not yet supported.
    // ...
    const washingtonRef = db.collection('cities').doc('DC');
    
    // Atomically increment the population of the city by 50.
    const res = await washingtonRef.update({
      population: FieldValue.increment(50)
    });
    import (
    	"context"
    	"fmt"
    
    	"cloud.google.com/go/firestore"
    )
    
    // updateDocumentIncrement increments the population of the city document in the
    // cities collection by 50.
    func updateDocumentIncrement(projectID, city string) error {
    	// projectID := "my-project"
    
    	ctx := context.Background()
    
    	client, err := firestore.NewClient(ctx, projectID)
    	if err != nil {
    		return fmt.Errorf("firestore.NewClient: %w", err)
    	}
    	defer client.Close()
    
    	dc := client.Collection("cities").Doc(city)
    	_, err = dc.Update(ctx, []firestore.Update{
    		{Path: "population", Value: firestore.Increment(50)},
    	})
    	if err != nil {
    		return fmt.Errorf("Update: %w", err)
    	}
    
    	return nil
    }
    

    PHP

    For more on installing and creating a Cloud Firestore client, refer to Cloud Firestore Client Libraries .

    $cityRef = $db->collection('samples/php/cities')->document('DC');
    
    // Atomically increment the population of the city by 50.
    $cityRef->update([
        ['path' => 'regions', 'value' => FieldValue::increment(50)]
    ]);
    // This is not yet supported in the Unity SDK.
      
    DocumentReference washingtonRef = db.Collection("cities").Document("DC");
    
    // Atomically increment the population of the city by 50.
    await washingtonRef.UpdateAsync("Regions", FieldValue.Increment(50));
    city_ref = firestore.doc "#{collection_path}/DC"
    city_ref.update({ population: firestore.field_increment(50) })

    Increment operations are useful for implementing counters. Note that updating a single document too quickly can lead to contention or errors . If you need to update your counter at a very high rate, see the Distributed counters page.