Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

GetFunctionScalingConfig

Retrieves the scaling configuration for a Lambda Managed Instances function.

Request Syntax


GET /2025-11-30/functions/FunctionName/function-scaling-config?Qualifier=Qualifier HTTP/1.1

URI Request Parameters

The request uses the following URI parameters.

FunctionName

The name or ARN of the Lambda function.

Length Constraints: Minimum length of 1. Maximum length of 140.

Pattern: (arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}((-gov)|(-iso([a-z]?)))?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_]+)

Required: Yes

Qualifier

Specify a version or alias to get the scaling configuration for a published version of the function.

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: (\$LATEST\.PUBLISHED|[0-9]+)

Required: Yes

Request Body

The request does not have a request body.

Response Syntax


HTTP/1.1 200
Content-type: application/json

{
   "AppliedFunctionScalingConfig": { 
      "MaxExecutionEnvironments": number,
      "MinExecutionEnvironments": number
   },
   "FunctionArn": "string",
   "RequestedFunctionScalingConfig": { 
      "MaxExecutionEnvironments": number,
      "MinExecutionEnvironments": 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.

AppliedFunctionScalingConfig

The scaling configuration that is currently applied to the function. This represents the actual scaling settings in effect.

Type: FunctionScalingConfig object

FunctionArn

The Amazon Resource Name (ARN) of the function.

Type: String

Length Constraints: Minimum length of 0. Maximum length of 10000.

Pattern: arn:(aws[a-zA-Z-]*)?:lambda:[a-z]{2}((-gov)|(-iso([a-z]?)))?-[a-z]+-\d{1}:\d{12}:function:[a-zA-Z0-9-_]+(:(\$LATEST|[a-zA-Z0-9-_]+))?

RequestedFunctionScalingConfig

The scaling configuration that was requested for the function.

Type: FunctionScalingConfig object

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.

message: The exception message.
Type: The exception type.

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. For more information, see Lambda quotas.

retryAfterSeconds: The number of seconds the caller should wait before retrying.

HTTP Status Code: 429