Lambda / Client / list_layer_versions

list_layer_versions

Lambda.Client.list_layer_versions(**kwargs)

Lists the versions of an Lambda layer. Versions that have been deleted aren’t listed. Specify a runtime identifier to list only versions that indicate that they’re compatible with that runtime. Specify a compatible architecture to include only layer versions that are compatible with that architecture.

See also: AWS API Documentation

Request Syntax

response = client.list_layer_versions(
    CompatibleRuntime='nodejs'|'nodejs4.3'|'nodejs6.10'|'nodejs8.10'|'nodejs10.x'|'nodejs12.x'|'nodejs14.x'|'nodejs16.x'|'java8'|'java8.al2'|'java11'|'python2.7'|'python3.6'|'python3.7'|'python3.8'|'python3.9'|'dotnetcore1.0'|'dotnetcore2.0'|'dotnetcore2.1'|'dotnetcore3.1'|'dotnet6'|'dotnet8'|'nodejs4.3-edge'|'go1.x'|'ruby2.5'|'ruby2.7'|'provided'|'provided.al2'|'nodejs18.x'|'python3.10'|'java17'|'ruby3.2'|'python3.11'|'nodejs20.x'|'provided.al2023'|'python3.12'|'java21',
    LayerName='string',
    Marker='string',
    MaxItems=123,
    CompatibleArchitecture='x86_64'|'arm64'
)

Parameters:

• CompatibleRuntime (string) –

  A runtime identifier. For example, java21.

  The following list includes deprecated runtimes. For more information, see Runtime deprecation policy.

• LayerName (string) –

  [REQUIRED]

  The name or Amazon Resource Name (ARN) of the layer.

• Marker (string) – A pagination token returned by a previous call.

• MaxItems (integer) – The maximum number of versions to return.

• CompatibleArchitecture (string) – The compatible instruction set architecture.

Return type:

dict

Returns:

Response Syntax

{
    'NextMarker': 'string',
    'LayerVersions': [
        {
            'LayerVersionArn': 'string',
            'Version': 123,
            'Description': 'string',
            'CreatedDate': 'string',
            'CompatibleRuntimes': [
                'nodejs'|'nodejs4.3'|'nodejs6.10'|'nodejs8.10'|'nodejs10.x'|'nodejs12.x'|'nodejs14.x'|'nodejs16.x'|'java8'|'java8.al2'|'java11'|'python2.7'|'python3.6'|'python3.7'|'python3.8'|'python3.9'|'dotnetcore1.0'|'dotnetcore2.0'|'dotnetcore2.1'|'dotnetcore3.1'|'dotnet6'|'dotnet8'|'nodejs4.3-edge'|'go1.x'|'ruby2.5'|'ruby2.7'|'provided'|'provided.al2'|'nodejs18.x'|'python3.10'|'java17'|'ruby3.2'|'python3.11'|'nodejs20.x'|'provided.al2023'|'python3.12'|'java21',
            ],
            'LicenseInfo': 'string',
            'CompatibleArchitectures': [
                'x86_64'|'arm64',
            ]
        },
    ]
}

Response Structure

• (dict) –

  • NextMarker (string) –

    A pagination token returned when the response doesn’t contain all versions.

  • LayerVersions (list) –

    A list of versions.

    • (dict) –

      Details about a version of an Lambda layer.

      • LayerVersionArn (string) –

        The ARN of the layer version.

      • Version (integer) –

        The version number.

      • Description (string) –

        The description of the version.

      • CreatedDate (string) –

        The date that the version was created, in ISO 8601 format. For example, 2018-11-27T15:10:45.123+0000.

      • CompatibleRuntimes (list) –

        The layer’s compatible runtimes.

        The following list includes deprecated runtimes. For more information, see Runtime deprecation policy.

        • (string) –

      • LicenseInfo (string) –

        The layer’s open-source license.

      • CompatibleArchitectures (list) –

        A list of compatible instruction set architectures.

        • (string) –

Exceptions

• Lambda.Client.exceptions.ServiceException

• Lambda.Client.exceptions.InvalidParameterValueException

• Lambda.Client.exceptions.ResourceNotFoundException

• Lambda.Client.exceptions.TooManyRequestsException

Examples

The following example displays information about the versions for the layer named blank-java-lib

response = client.list_layer_versions(
    LayerName='blank-java-lib',
)

print(response)

Expected Output:

{
    'LayerVersions': [
        {
            'CompatibleRuntimes': [
                'java8',
            ],
            'CreatedDate': '2020-03-18T23:38:42.284+0000',
            'Description': 'Dependencies for the blank-java sample app.',
            'LayerVersionArn': 'arn:aws:lambda:us-east-2:123456789012:layer:blank-java-lib:7',
            'Version': 7,
        },
        {
            'CompatibleRuntimes': [
                'java8',
            ],
            'CreatedDate': '2020-03-17T07:24:21.960+0000',
            'Description': 'Dependencies for the blank-java sample app.',
            'LayerVersionArn': 'arn:aws:lambda:us-east-2:123456789012:layer:blank-java-lib:6',
            'Version': 6,
        },
    ],
    'ResponseMetadata': {
        '...': '...',
    },
}