get-function¶

Description¶

Returns information about the function or function version, with a link to download the deployment package that’s valid for 10 minutes. If you specify a function version, only details that are specific to that version are returned.

Synopsis¶

  get-function
--function-name <value>
[--qualifier <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--cli-auto-prompt <value>]

Options¶

--function-name (string)

The name of the Lambda function, version, or alias.

Name formats

Function name - my-function (name-only), my-function:v1 (with alias).

Function ARN - arn:aws:lambda:us-west-2:123456789012:function:my-function .

Partial ARN - 123456789012:function:my-function .

You can append a version number or alias to any of the formats. The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

--qualifier (string)

Specify a version or alias to get details about a published version of the function.

--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.

Examples¶

To retrieve information about a function

The following get-function example displays information about the my-function function.

aws lambda get-function \
    --function-name  my-function

Output:

{
    "Concurrency": {
        "ReservedConcurrentExecutions": 100
    },
    "Code": {
        "RepositoryType": "S3",
        "Location": "https://awslambda-us-west-2-tasks.s3.us-west-2.amazonaws.com/snapshots/123456789012/my-function..."
    },
    "Configuration": {
        "TracingConfig": {
            "Mode": "PassThrough"
        },
        "Version": "$LATEST",
        "CodeSha256": "5tT2qgzYUHoqwR616pZ2dpkn/0J1FrzJmlKidWaaCgk=",
        "FunctionName": "my-function",
        "VpcConfig": {
            "SubnetIds": [],
            "VpcId": "",
            "SecurityGroupIds": []
        },
        "MemorySize": 128,
        "RevisionId": "28f0fb31-5c5c-43d3-8955-03e76c5c1075",
        "CodeSize": 304,
        "FunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:my-function",
        "Handler": "index.handler",
        "Role": "arn:aws:iam::123456789012:role/service-role/helloWorldPython-role-uy3l9qyq",
        "Timeout": 3,
        "LastModified": "2019-09-24T18:20:35.054+0000",
        "Runtime": "nodejs10.x",
        "Description": ""
    }
}

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

Output¶

Configuration -> (structure)

The configuration of the function or version.

FunctionName -> (string)

The name of the function.

FunctionArn -> (string)

The function’s Amazon Resource Name (ARN).

Runtime -> (string)

The runtime environment for the Lambda function.

Role -> (string)

The function’s execution role.

Handler -> (string)

The function that Lambda calls to begin executing your function.

CodeSize -> (long)

The size of the function’s deployment package, in bytes.

Description -> (string)

The function’s description.

Timeout -> (integer)

The amount of time in seconds that Lambda allows a function to run before stopping it.

MemorySize -> (integer)

The memory that’s allocated to the function.

LastModified -> (string)

The date and time that the function was last updated, in ISO-8601 format (YYYY-MM-DDThh:mm:ss.sTZD).

CodeSha256 -> (string)

The SHA256 hash of the function’s deployment package.

Version -> (string)

The version of the Lambda function.

VpcConfig -> (structure)

The function’s networking configuration.

SubnetIds -> (list)

A list of VPC subnet IDs.

(string)

SecurityGroupIds -> (list)

A list of VPC security groups IDs.

(string)

VpcId -> (string)

The ID of the VPC.

DeadLetterConfig -> (structure)

The function’s dead letter queue.

TargetArn -> (string)

The Amazon Resource Name (ARN) of an Amazon SQS queue or Amazon SNS topic.

Environment -> (structure)

The function’s environment variables.

Variables -> (map)

Environment variable key-value pairs.

key -> (string)

value -> (string)

Error -> (structure)

Error messages for environment variables that couldn’t be applied.

ErrorCode -> (string)

The error code.

Message -> (string)

The error message.

KMSKeyArn -> (string)

The KMS key that’s used to encrypt the function’s environment variables. This key is only returned if you’ve configured a customer managed CMK.

TracingConfig -> (structure)

The function’s AWS X-Ray tracing configuration.

Mode -> (string)

The tracing mode.

MasterArn -> (string)

For Lambda@Edge functions, the ARN of the master function.

RevisionId -> (string)

The latest updated revision of the function or alias.

Layers -> (list)

The function’s layers .

(structure)

An AWS Lambda layer .

Arn -> (string)

The Amazon Resource Name (ARN) of the function layer.

CodeSize -> (long)

The size of the layer archive in bytes.

State -> (string)

The current state of the function. When the state is Inactive , you can reactivate the function by invoking it.

StateReason -> (string)

The reason for the function’s current state.

StateReasonCode -> (string)

The reason code for the function’s current state. When the code is Creating , you can’t invoke or modify the function.

LastUpdateStatus -> (string)

The status of the last update that was performed on the function. This is first set to Successful after function creation completes.

LastUpdateStatusReason -> (string)

The reason for the last update that was performed on the function.

LastUpdateStatusReasonCode -> (string)

The reason code for the last update that was performed on the function.

FileSystemConfigs -> (list)

Connection settings for an Amazon EFS file system.

(structure)

Details about the connection between a Lambda function and an Amazon EFS file system.

Arn -> (string)

The Amazon Resource Name (ARN) of the Amazon EFS access point that provides access to the file system.

LocalMountPath -> (string)

The path where the function can access the file system, starting with /mnt/ .

Code -> (structure)

The deployment package of the function or version.

RepositoryType -> (string)

The service that’s hosting the file.

Location -> (string)

A presigned URL that you can use to download the deployment package.

Tags -> (map)

The function’s tags .

key -> (string)

value -> (string)

Concurrency -> (structure)

The function’s reserved concurrency .

ReservedConcurrentExecutions -> (integer)

The number of concurrent executions that are reserved for this function. For more information, see Managing Concurrency .

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