Method projects.logs.entries.write

Writes log entries to Stackdriver Logging. Each entry consists of a LogEntry object. You must fill in the required fields of the object. You can supply a map, commonLabels, that holds default (key, value) data for the entries[].metadata.labels map in each entry, saving you the trouble of creating identical copies for each entry.

HTTP request


(This URI uses URI Template syntax.)

Path parameters

Parameter name Type Description
logName string The resource name of the log that will receive the log entries.

Request body

The request body contains data with the following structure:

JSON representation
  "commonLabels": {
    string: string,
  "entries": [
  "partialSuccess": boolean,
Field name Type Description
commonLabels map (key: string, value: string)

Metadata labels that apply to all log entries in this request, so that you don't have to repeat them in each log entry's metadata.labels field. If any of the log entries contains a (key, value) with the same key that is in commonLabels, then the entry's (key, value) overrides the one in commonLabels.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.

entries[] object(LogEntry) Log entries to write.
partialSuccess boolean Optional. Whether valid entries should be written even if some other entries fail due to INVALID_ARGUMENT or PERMISSION_DENIED errors. If any entry is not written, the response status will be the error associated with one of the failed entries and include error details in the form of WriteLogEntriesPartialErrors.

Response body

If successful, the response body will be empty.


Requires one of the following OAuth scopes:


For more information, see the Auth Guide.


An individual entry in a log.

JSON representation
  "metadata": {
  "insertId": string,
  "log": string,
  "httpRequest": {
  "operation": {
  // Union field, only one of the following:
  "protoPayload": {
    "@type": string,
    field1: ...,
  "textPayload": string,
  "structPayload": {
Field name Type Description
metadata object(LogEntryMetadata) Required. Information about the log entry.
insertId string A unique ID for the log entry. If you provide this field, the logging service considers other log entries in the same log with the same ID as duplicates which can be removed. If omitted, Stackdriver Logging will generate a unique ID for this log entry.
log string The log to which this entry belongs. When a log entry is written, the value of this field is set by the logging system.
httpRequest object(HttpRequest) Information about the HTTP request associated with this log entry, if applicable.
operation object(LogEntryOperation) Optional. Information about an operation associated with the log entry, if applicable.
Union field, only one of the following:
protoPayload object

The log entry payload, represented as a protocol buffer that is expressed as a JSON object. You can only pass protoPayload values that belong to a set of approved types.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "" }.

textPayload string The log entry payload, represented as a Unicode string (UTF-8).
structPayload object The log entry payload, represented as a structure that is expressed as a JSON object.


Additional data that is associated with a log entry, set by the service creating the log entry.

JSON representation
  "timestamp": string,
  "severity": enum(LogSeverity),
  "projectId": string,
  "serviceName": string,
  "region": string,
  "zone": string,
  "userId": string,
  "labels": {
    string: string,
Field name Type Description
timestamp string

The time the event described by the log entry occurred. Timestamps must be later than January 1, 1970. If omitted, Stackdriver Logging will use the time the log entry is received.

A timestamp in RFC3339 UTC "Zulu" format, accurate to nanoseconds. Example: "2014-10-02T15:01:23.045123456Z".

severity enum(LogSeverity) The severity of the log entry. If omitted, LogSeverity.DEFAULT is used.
projectId string The project ID of the Google Cloud Platform service that created the log entry.
serviceName string Required. The API name of the Google Cloud Platform service that created the log entry. For example, "".
region string The region name of the Google Cloud Platform service that created the log entry. For example, "us-central1".
zone string The zone of the Google Cloud Platform service that created the log entry. For example, "us-central1-a".
userId string The fully-qualified email address of the authenticated user that performed or requested the action represented by the log entry. If the log entry does not apply to an action taken by an authenticated user, then the field should be empty.
labels map (key: string, value: string)

A set of (key, value) data that provides additional information about the log entry. If the log entry is from one of the Google Cloud Platform sources listed below, the indicated (key, value) information must be provided:

Google App Engine, service_name

  "", <module ID>
  "", <version ID>
      and one of:
  "", <instance index>
  "", <instance ID>

or else provide the following Compute Engine labels:

Google Compute Engine, service_name

   "", "instance"
   "", <instance ID>

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.


The severity of the event described in a log entry. These guideline severity levels are ordered, with numerically smaller levels treated as less severe than numerically larger levels. If the source of the log entries uses a different set of severity levels, the client should select the closest corresponding LogSeverity value. For example, Java's FINE, FINER, and FINEST levels might all map to LogSeverity.DEBUG. If the original severity code must be preserved, it can be stored in the payload.

Enum value Description
DEFAULT The log entry has no assigned severity level.
DEBUG Debug or trace information.
INFO Routine information, such as ongoing status or performance.
NOTICE Normal but significant events, such as start up, shut down, or configuration.
WARNING Warning events might cause problems.
ERROR Error events are likely to cause problems.
CRITICAL Critical events cause more severe problems or brief outages.
ALERT A person must take an action immediately.
EMERGENCY One or more systems are unusable.


A common proto for logging HTTP requests.

JSON representation
  "requestMethod": string,
  "requestUrl": string,
  "requestSize": string,
  "status": number,
  "responseSize": string,
  "userAgent": string,
  "remoteIp": string,
  "serverIp": string,
  "referer": string,
  "cacheLookup": boolean,
  "cacheHit": boolean,
  "cacheValidatedWithOriginServer": boolean,
  "cacheFillBytes": string,
Field name Type Description
requestMethod string The request method. Examples: "GET", "HEAD", "PUT", "POST".
requestUrl string The scheme (http, https), the host name, the path and the query portion of the URL that was requested. Example: "".
requestSize string The size of the HTTP request message in bytes, including the request headers and the request body.
status number The response code indicating the status of response. Examples: 200, 404.
responseSize string The size of the HTTP response message sent back to the client, in bytes, including the response headers and the response body.
userAgent string The user agent sent by the client. Example: "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Q312461; .NET CLR 1.0.3705)".
remoteIp string The IP address (IPv4 or IPv6) of the client that issued the HTTP request. Examples: "", "FE80::0202:B3FF:FE1E:8329".
serverIp string The IP address (IPv4 or IPv6) of the origin server that the request was sent to.
referer string The referer URL of the request, as defined in HTTP/1.1 Header Field Definitions.
cacheLookup boolean Whether or not a cache lookup was attempted.
cacheHit boolean Whether or not an entity was served from cache (with or without validation).
cacheValidatedWithOriginServer boolean Whether or not the response was validated with the origin server before being served from cache. This field is only meaningful if cache_hit is True.
cacheFillBytes string The number of HTTP response bytes inserted into cache. Set only when a cache fill was attempted.


Additional information about a potentially long running operation with which a log entry is associated.

JSON representation
  "id": string,
  "producer": string,
  "first": boolean,
  "last": boolean,
Field name Type Description
id string An opaque identifier. A producer of log entries should ensure that id is only reused for entries related to one operation.
producer string Ensures the operation can be uniquely identified. The combination of id and producer should be made globally unique by filling producer with a value that disambiguates the service that created id.
first boolean True for the first entry associated with id.
last boolean True for the last entry associated with id.

Try it!