CreateLogStream
Creates a log stream for the specified log group. A log stream is a sequence of log events that originate from a single source, such as an application instance or a resource that is being monitored.
There is no limit on the number of log streams that you can create for a log group. There is a limit
of 50 TPS on CreateLogStream operations, after which transactions are throttled.
You must use the following guidelines when naming a log stream:
-
Log stream names must be unique within the log group.
-
Log stream names can be between 1 and 512 characters long.
-
Don't use ':' (colon) or '*' (asterisk) characters.
Request Syntax
{
"logGroupName": "string",
"logStreamName": "string"
}Request Parameters
For information about the parameters that are common to all actions, see Common Parameters.
The request accepts the following data in JSON format.
- logGroupName
-
The name of the log group.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 512.
Pattern:
[\.\-_/#A-Za-z0-9]+Required: Yes
- logStreamName
-
The name of the log stream.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 512.
Pattern:
[^:*]*Required: Yes
Response Elements
If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.
Errors
For information about the errors that are common to all actions, see Common Errors.
- InvalidParameterException
-
A parameter is specified incorrectly.
HTTP Status Code: 400
- ResourceAlreadyExistsException
-
The specified resource already exists.
HTTP Status Code: 400
- ResourceNotFoundException
-
The specified resource does not exist.
HTTP Status Code: 400
- ServiceUnavailableException
-
The service cannot complete the request.
HTTP Status Code: 500
Examples
To create a log stream
The following example creates a log stream for the specified log group.
Sample Request
POST / HTTP/1.1
Host: logs.<region>.<domain>
X-Amz-Date: <DATE>
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=content-type;date;host;user-agent;x-amz-date;x-amz-target;x-amzn-requestid, Signature=<Signature>
User-Agent: <UserAgentString>
Accept: application/json
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Connection: Keep-Alive
X-Amz-Target: Logs_20140328.CreateLogStream
{
"logGroupName": "my-log-group",
"logStreamName": "my-log-stream"
}Sample Response
HTTP/1.1 200 OK
x-amzn-RequestId: <RequestId>
Content-Type: application/x-amz-json-1.1
Content-Length: <PayloadSizeBytes>
Date: <Date>See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
