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ListLayers

Lists AWS Lambda 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: nodejs10.x | nodejs12.x | java8 | java11 | python2.7 | python3.6 | python3.7 | python3.8 | dotnetcore2.1 | dotnetcore3.1 | go1.x | ruby2.5 | ruby2.7 | 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](#SSS-ListLayers-response-Layers)": [ 
      { 
         "[LatestMatchingVersion](API_LayersListItem.md#SSS-Type-LayersListItem-LatestMatchingVersion)": { 
            "[CompatibleRuntimes](API_LayerVersionsListItem.md#SSS-Type-LayerVersionsListItem-CompatibleRuntimes)": [ "string" ],
            "[CreatedDate](API_LayerVersionsListItem.md#SSS-Type-LayerVersionsListItem-CreatedDate)": "string",
            "[Description](API_LayerVersionsListItem.md#SSS-Type-LayerVersionsListItem-Description)": "string",
            "[LayerVersionArn](API_LayerVersionsListItem.md#SSS-Type-LayerVersionsListItem-LayerVersionArn)": "string",
            "[LicenseInfo](API_LayerVersionsListItem.md#SSS-Type-LayerVersionsListItem-LicenseInfo)": "string",
            "[Version](API_LayerVersionsListItem.md#SSS-Type-LayerVersionsListItem-Version)": number
         },
         "[LayerArn](API_LayersListItem.md#SSS-Type-LayersListItem-LayerArn)": "string",
         "[LayerName](API_LayersListItem.md#SSS-Type-LayersListItem-LayerName)": "string"
      }
   ],
   "[NextMarker](#SSS-ListLayers-response-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.
HTTP Status Code: 400

ServiceException
The AWS Lambda service encountered an internal error.
HTTP Status Code: 500

TooManyRequestsException
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: