AWS Lambda
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List all versions of a function. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

Request Syntax

GET /2015-03-31/functions/FunctionName/versions?Marker=Marker&MaxItems=MaxItems HTTP/1.1

URI Request Parameters

The request requires the following URI parameters.


Function name whose versions to list. You can specify a function name (for example, Thumbnail) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail). Note that the length constraint applies only to the 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 170.

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


Optional string. An opaque pagination token returned from a previous ListVersionsByFunction operation. If present, indicates where to continue the listing.


Optional integer. Specifies the maximum number of AWS Lambda function versions to return in response. This parameter value must be greater than 0.

Valid Range: Minimum value of 1. Maximum value of 10000.

Request Body

The request does not have a request body.

Response Syntax

HTTP/1.1 200
Content-type: application/json

   "NextMarker": "string",
   "Versions": [ 
         "CodeSha256": "string",
         "CodeSize": number,
         "DeadLetterConfig": { 
            "TargetArn": "string"
         "Description": "string",
         "Environment": { 
            "Error": { 
               "ErrorCode": "string",
               "Message": "string"
            "Variables": { 
               "string" : "string" 
         "FunctionArn": "string",
         "FunctionName": "string",
         "Handler": "string",
         "KMSKeyArn": "string",
         "LastModified": "string",
         "MasterArn": "string",
         "MemorySize": number,
         "Role": "string",
         "Runtime": "string",
         "Timeout": number,
         "TracingConfig": { 
            "Mode": "string"
         "Version": "string",
         "VpcConfig": { 
            "SecurityGroupIds": [ "string" ],
            "SubnetIds": [ "string" ],
            "VpcId": "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.


A string, present if there are more function versions.

Type: String


A list of Lambda function versions.

Type: Array of FunctionConfiguration objects



One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

HTTP Status Code: 400


The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

HTTP Status Code: 404


The AWS Lambda service encountered an internal error.

HTTP Status Code: 500


HTTP Status Code: 429

See Also

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