GetFunctionUrlConfig - AWS Lambda


Returns details about a Lambda function URL.

Request Syntax

GET /2021-10-31/functions/FunctionName/url?Qualifier=Qualifier HTTP/1.1

URI Request Parameters

The request uses the following URI parameters.


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 alias name.

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

Pattern: (^\$LATEST$)|((?!^[0-9]+$)([a-zA-Z0-9-_]+))

Request Body

The request does not have a request body.

Response Syntax

HTTP/1.1 200 Content-type: application/json { "AuthType": "string", "Cors": { "AllowCredentials": boolean, "AllowHeaders": [ "string" ], "AllowMethods": [ "string" ], "AllowOrigins": [ "string" ], "ExposeHeaders": [ "string" ], "MaxAge": number }, "CreationTime": "string", "FunctionArn": "string", "FunctionUrl": "string", "LastModifiedTime": "string" }

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.


The type of authentication that your function URL uses. Set to AWS_IAM if you want to restrict access to authenticated IAM users only. Set to NONE if you want to bypass IAM authentication to create a public endpoint. For more information, see Security and auth model for Lambda function URLs.

Type: String

Valid Values: NONE | AWS_IAM


The cross-origin resource sharing (CORS) settings for your function URL.

Type: Cors object


When the function URL was created, in ISO-8601 format (YYYY-MM-DDThh:mm:ss.sTZD).

Type: String


The Amazon Resource Name (ARN) of your function.

Type: String

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-_]+))?


The HTTP URL endpoint for your function.

Type: String

Length Constraints: Minimum length of 40. Maximum length of 100.


When the function URL configuration was last updated, in ISO-8601 format (YYYY-MM-DDThh:mm:ss.sTZD).

Type: String



One of the parameters in the request is invalid.

HTTP Status Code: 400


The resource specified in the request does not exist.

HTTP Status Code: 404


The AWS Lambda service encountered an internal error.

HTTP Status Code: 500


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: