[ aws . lambda ]



Returns information about a version of an AWS Lambda layer , with a link to download the layer archive that’s valid for 10 minutes.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.


--arn <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--cli-auto-prompt <value>]


--arn (string)

The ARN of the layer version.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

--cli-auto-prompt (boolean) Automatically prompt for CLI input parameters.

See ‘aws help’ for descriptions of global parameters.


To retrieve information about a Lambda layer version

The following get-layer-version-by-arn example displays information about the layer version with the specified Amazon Resource Name (ARN).

aws lambda get-layer-version-by-arn \
    --arn "arn:aws:lambda:us-west-2:123456789012:layer:AWSLambda-Python37-SciPy1x:2"


    "LayerVersionArn": "arn:aws:lambda:us-west-2:123456789012:layer:AWSLambda-Python37-SciPy1x:2",
    "Description": "AWS Lambda SciPy layer for Python 3.7 (scipy-1.1.0, numpy-1.15.4) https://github.com/scipy/scipy/releases/tag/v1.1.0 https://github.com/numpy/numpy/releases/tag/v1.15.4",
    "CreatedDate": "2018-11-12T10:09:38.398+0000",
    "LayerArn": "arn:aws:lambda:us-west-2:123456789012:layer:AWSLambda-Python37-SciPy1x",
    "Content": {
        "CodeSize": 41784542,
        "CodeSha256": "GGmv8ocUw4cly0T8HL0Vx/f5V4RmSCGNjDIslY4VskM=",
        "Location": "https://awslambda-us-west-2-layers.s3.us-west-2.amazonaws.com/snapshots/123456789012/..."
    "Version": 2,
    "CompatibleRuntimes": [
    "LicenseInfo": "SciPy: https://github.com/scipy/scipy/blob/master/LICENSE.txt, NumPy: https://github.com/numpy/numpy/blob/master/LICENSE.txt"

For more information, see AWS Lambda Layers in the AWS Lambda Developer Guide.


Content -> (structure)

Details about the layer version.

Location -> (string)

A link to the layer archive in Amazon S3 that is valid for 10 minutes.

CodeSha256 -> (string)

The SHA-256 hash of the layer archive.

CodeSize -> (long)

The size of the layer archive in bytes.

LayerArn -> (string)

The ARN of the layer.

LayerVersionArn -> (string)

The ARN of the layer version.

Description -> (string)

The description of the version.

CreatedDate -> (string)

The date that the layer version was created, in ISO-8601 format (YYYY-MM-DDThh:mm:ss.sTZD).

Version -> (long)

The version number.

CompatibleRuntimes -> (list)

The layer’s compatible runtimes.


LicenseInfo -> (string)

The layer’s software license.