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Cloud Logging Service, gRPC: LogIngestionService.Write

Written by
Updated at October 17, 2024

Write log entries to specified destination.

gRPC request

rpc Write (WriteRequest) returns (WriteResponse)

WriteRequest

{
  "destination": {
    // Includes only one of the fields `logGroupId`, `folderId`
    "logGroupId": "string",
    "folderId": "string"
    // end of the list of possible fields
  },
  "resource": {
    "type": "string",
    "id": "string"
  },
  "entries": [
    {
      "timestamp": "google.protobuf.Timestamp",
      "level": "Level",
      "message": "string",
      "jsonPayload": "google.protobuf.Struct",
      "streamName": "string"
    }
  ],
  "defaults": {
    "level": "Level",
    "jsonPayload": "google.protobuf.Struct",
    "streamName": "string"
  }
}

Field

Description

destination

Destination

Required field. Log entries destination.

See Destination for details.

resource

LogEntryResource

Common resource (type, ID) specification for log entries.

entries[]

IncomingLogEntry

List of log entries.

defaults

LogEntryDefaults

Log entries defaults.

See LogEntryDefaults for details.

Destination

Field

Description

logGroupId

string

Entry should be written to log group resolved by ID.

Includes only one of the fields logGroupId, folderId.

Entry destination.

folderId

string

Entry should be written to default log group for the folder.

Includes only one of the fields logGroupId, folderId.

Entry destination.

LogEntryResource

Log entry resource specification.

May be used either by services and by user.

Field

Description

type

string

Resource type, i.e., serverless.function

id

string

Resource ID, i.e., ID of the function producing logs.

IncomingLogEntry

Field

Description

timestamp

google.protobuf.Timestamp

Required field. Timestamp of the entry.

level

enum Level

Entry severity.

See LogLevel.Level for details.

  • LEVEL_UNSPECIFIED: Default log level.

    Equivalent to not specifying log level at all.

  • TRACE: Trace log level.

    Possible use case: verbose logging of some business logic.

  • DEBUG: Debug log level.

    Possible use case: debugging special cases in application logic.

  • INFO: Info log level.

    Mostly used for information messages.

  • WARN: Warn log level.

    May be used to alert about significant events.

  • ERROR: Error log level.

    May be used to alert about errors in infrastructure, logic, etc.

  • FATAL: Fatal log level.

    May be used to alert about unrecoverable failures and events.

message

string

Entry text message.

jsonPayload

google.protobuf.Struct

Entry annotation.

streamName

string

Entry stream name.

LogEntryDefaults

Field

Description

level

enum Level

Default entry severity.
Will be applied if entry level is unspecified.

See LogLevel.Level for details.

  • LEVEL_UNSPECIFIED: Default log level.

    Equivalent to not specifying log level at all.

  • TRACE: Trace log level.

    Possible use case: verbose logging of some business logic.

  • DEBUG: Debug log level.

    Possible use case: debugging special cases in application logic.

  • INFO: Info log level.

    Mostly used for information messages.

  • WARN: Warn log level.

    May be used to alert about significant events.

  • ERROR: Error log level.

    May be used to alert about errors in infrastructure, logic, etc.

  • FATAL: Fatal log level.

    May be used to alert about unrecoverable failures and events.

jsonPayload

google.protobuf.Struct

Default entry annotation.
Will be merged with entry annotation.
Any conflict will be resolved in favor of entry own annotation.

streamName

string

Entry stream name.

WriteResponse

{
  "errors": "google.rpc.Status"
}

Field

Description

errors

google.rpc.Status

The error result of the operation in case of failure or cancellation.
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