Returns details about the reserved concurrency configuration for a function. To set a concurrency limit for a function, use PutFunctionConcurrency.
GET /2019-09-30/functions/FunctionName/concurrency HTTP/1.1
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
The request does not have a request body.
HTTP/1.1 200
Content-type: application/json
{
"ReservedConcurrentExecutions": number
}
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.
InvalidParameterValueException
One of the parameters in the request is invalid.
HTTP Status Code: 400
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
For more information about using this API in one of the language-specific AWS SDKs, see the following: