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AWS Lambda
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ListFunctions

Returns a list of your Lambda functions. For each function, the response includes the function configuration information. You must use GetFunction to retrieve the code for your function.

This operation requires permission for the lambda:ListFunctions action.

If you are using versioning feature, the response returns list of $LATEST versions of your functions. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

Request Syntax

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

URI Request Parameters

The request requires the following URI parameters.

Marker

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

MaxItems

Optional integer. Specifies the maximum number of AWS Lambda functions 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

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HTTP/1.1 200 Content-type: application/json { "Functions": [ { "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", "MemorySize": number, "Role": "string", "Runtime": "string", "Timeout": number, "Version": "string", "VpcConfig": { "SecurityGroupIds": [ "string" ], "SubnetIds": [ "string" ], "VpcId": "string" } } ], "NextMarker": "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.

Functions

A list of Lambda functions.

Type: array of FunctionConfiguration objects

NextMarker

A string, present if there are more functions.

Type: String

Errors

ServiceException

The AWS Lambda service encountered an internal error.

HTTP Status Code: 500

TooManyRequestsException

HTTP Status Code: 429

See Also

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