Protocol indicates which communication protocol the client used to start the audited operation.
| Enums | |
|---|---|
PROTOCOL_UNSPECIFIED | 
              Not expected. | 
WEBSOCKETS | 
              Set for realtime wire protocol requests made over a websockets connection. | 
LONG_POLLING | 
              Set for realtime wire protocol request made using long-polling. | 
EVENT_STREAMING | 
              Set for streaming queries made using REST with server-sent events. | 
REST_HTTP | 
              Set for normal REST data requests rest-{read, write, etc.}. |