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API_PutProvisionedConcurrencyConfig.md

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PutProvisionedConcurrencyConfig

Adds a provisioned concurrency configuration to a function's alias or version.

Request Syntax

PUT /2019-09-30/functions/FunctionName/provisioned-concurrency?Qualifier=Qualifier HTTP/1.1
Content-type: application/json

{
   "ProvisionedConcurrentExecutions": number
}

URI Request Parameters

The request uses the following URI parameters.

** FunctionName ** The name of the Lambda function.

Name formats

  • Function name - my-function.
  • Function ARN - arn:aws:lambda:us-west-2:123456789012:function:my-function.
  • Partial ARN - 123456789012:function:my-function. The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.
    Length Constraints: Minimum length of 1. Maximum length of 140.
    Pattern: (arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}(-gov)?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?
    Required: Yes

** Qualifier ** The version number or alias name.
Length Constraints: Minimum length of 1. Maximum length of 128.
Pattern: (|[a-zA-Z0-9$_-]+)
Required: Yes

Request Body

The request accepts the following data in JSON format.

** ProvisionedConcurrentExecutions ** The amount of provisioned concurrency to allocate for the version or alias.
Type: Integer
Valid Range: Minimum value of 1.
Required: Yes

Response Syntax

HTTP/1.1 202
Content-type: application/json

{
   "AllocatedProvisionedConcurrentExecutions": number,
   "AvailableProvisionedConcurrentExecutions": number,
   "LastModified": "string",
   "RequestedProvisionedConcurrentExecutions": number,
   "Status": "string",
   "StatusReason": "string"
}

Response Elements

If the action is successful, the service sends back an HTTP 202 response.

The following data is returned in JSON format by the service.

** AllocatedProvisionedConcurrentExecutions ** The amount of provisioned concurrency allocated. When a weighted alias is used during linear and canary deployments, this value fluctuates depending on the amount of concurrency that is provisioned for the function versions.
Type: Integer
Valid Range: Minimum value of 0.

** AvailableProvisionedConcurrentExecutions ** The amount of provisioned concurrency available.
Type: Integer
Valid Range: Minimum value of 0.

** LastModified ** The date and time that a user last updated the configuration, in ISO 8601 format.
Type: String

** RequestedProvisionedConcurrentExecutions ** The amount of provisioned concurrency requested.
Type: Integer
Valid Range: Minimum value of 1.

** Status ** The status of the allocation process.
Type: String
Valid Values: IN_PROGRESS | READY | FAILED

** StatusReason ** For failed allocations, the reason that provisioned concurrency could not be allocated.
Type: String

Errors

** InvalidParameterValueException **
One of the parameters in the request is invalid.
HTTP Status Code: 400

** ResourceConflictException **
The resource already exists, or another operation is in progress.
HTTP Status Code: 409

** ResourceNotFoundException **
The resource specified in the request does not exist.
HTTP Status Code: 404

** ServiceException **
The AWS Lambda service encountered an internal error.
HTTP Status Code: 500

** TooManyRequestsException **
The request throughput limit was exceeded.
HTTP Status Code: 429

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: