GetFunctionConcurrency
Returns details about the reserved concurrency configuration for a function. To set a concurrency limit for a function, use PutFunctionConcurrency.
Request Syntax
GET /2019-09-30/functions/FunctionName
/concurrency HTTP/1.1
URI Request Parameters
The request uses the following URI parameters.
- FunctionName
-
The name or ARN 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
-
Request Body
The request does not have a request body.
Response Syntax
HTTP/1.1 200
Content-type: application/json
{
"ReservedConcurrentExecutions": number
}
Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
- ReservedConcurrentExecutions
-
The number of simultaneous executions that are reserved for the function.
Type: Integer
Valid Range: Minimum value of 0.
Errors
For information about the errors that are common to all actions, see Common Errors.
- InvalidParameterValueException
-
One of the parameters in the request is not valid.
HTTP Status Code: 400
- ResourceNotFoundException
-
The resource specified in the request does not exist.
HTTP Status Code: 404
- ServiceException
-
The Amazon Lambda service encountered an internal error.
HTTP Status Code: 500
- TooManyRequestsException
-
The request throughput limit was exceeded. For more information, see Lambda quotas.
HTTP Status Code: 429
See Also
For more information about using this API in one of the language-specific Amazon SDKs, see the following: