AWS Lambda
Developer Guide

ListLayers

Lists function layers and shows information about the latest version of each. Specify a runtime identifier to list only layers that indicate that they're compatible with that runtime.

Request Syntax

GET /2018-10-31/layers?CompatibleRuntime=CompatibleRuntime&Marker=Marker&MaxItems=MaxItems HTTP/1.1

URI Request Parameters

The request requires the following URI parameters.

CompatibleRuntime

A runtime identifier. For example, go1.x.

Valid Values: nodejs | nodejs4.3 | nodejs6.10 | nodejs8.10 | java8 | python2.7 | python3.6 | python3.7 | dotnetcore1.0 | dotnetcore2.0 | dotnetcore2.1 | nodejs4.3-edge | go1.x | ruby2.5 | provided

Marker

A pagination token returned by a previous call.

MaxItems

The maximum number of layers to return.

Valid Range: Minimum value of 1. Maximum value of 50.

Request Body

The request does not have a request body.

Response Syntax

HTTP/1.1 200 Content-type: application/json { "Layers": [ { "LatestMatchingVersion": { "CompatibleRuntimes": [ "string" ], "CreatedDate": "string", "Description": "string", "LayerVersionArn": "string", "LicenseInfo": "string", "Version": number }, "LayerArn": "string", "LayerName": "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.

Layers

A list of function layers.

Type: Array of LayersListItem objects

NextMarker

A pagination token returned when the response doesn't contain all layers.

Type: String

Errors

InvalidParameterValueException

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

ServiceException

The AWS Lambda service encountered an internal error.

HTTP Status Code: 500

TooManyRequestsException

Request throughput limit 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: