AWS Lambda

{'EventSourceToken': 'string'}

Adds a permission to the resource policy associated with the specified AWS Lambda function. You use resource policies to grant permissions to event sources that use push model. In a push model, event sources (such as Amazon S3 and custom applications) invoke your Lambda function. Each permission you add to the resource policy allows an event source, permission to invoke the Lambda function.

For information about the push model, see AWS Lambda: How it Works .

If you are using versioning, the permissions you add are specific to the Lambda function version or alias you specify in the AddPermission request via the Qualifier parameter. For more information about versioning, see AWS Lambda Function Versioning and Aliases .

This operation requires permission for the lambda:AddPermission action.

Request Syntax

client.add_permission(
    FunctionName='string',
    StatementId='string',
    Action='string',
    Principal='string',
    SourceArn='string',
    SourceAccount='string',
    EventSourceToken='string',
    Qualifier='string'
)

type FunctionName

string

param FunctionName

[REQUIRED]

Name of the Lambda function whose resource policy you are updating by adding a new permission.

You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.

type StatementId

string

param StatementId

[REQUIRED]

A unique statement identifier.

type Action

string

param Action

[REQUIRED]

The AWS Lambda action you want to allow in this statement. Each Lambda action is a string starting with lambda: followed by the API name (see Operations ). For example, lambda:CreateFunction . You can use wildcard (lambda:* ) to grant permission for all AWS Lambda actions.

type Principal

string

param Principal

[REQUIRED]

The principal who is getting this permission. It can be Amazon S3 service Principal (s3.amazonaws.com ) if you want Amazon S3 to invoke the function, an AWS account ID if you are granting cross-account permission, or any valid AWS service principal such as sns.amazonaws.com . For example, you might want to allow a custom application in another AWS account to push events to AWS Lambda by invoking your function.

type SourceArn

string

param SourceArn

This is optional; however, when granting Amazon S3 permission to invoke your function, you should specify this field with the bucket Amazon Resource Name (ARN) as its value. This ensures that only events generated from the specified bucket can invoke the function.

Warning

If you add a permission for the Amazon S3 principal without providing the source ARN, any AWS account that creates a mapping to your function ARN can send events to invoke your Lambda function from Amazon S3.

type SourceAccount

string

param SourceAccount

The AWS account ID (without a hyphen) of the source owner. For example, if the SourceArn identifies a bucket, then this is the bucket owner's account ID. You can use this additional condition to ensure the bucket you specify is owned by a specific account (it is possible the bucket owner deleted the bucket and some other AWS account created the bucket). You can also use this condition to specify all sources (that is, you don't specify the SourceArn ) owned by a specific account.

type EventSourceToken

string

param EventSourceToken

type Qualifier

string

param Qualifier

You can use this optional query parameter to describe a qualified ARN using a function version or an alias name. The permission will then apply to the specific qualified ARN. For example, if you specify function version 2 as the qualifier, then permission applies only when request is made using qualified function ARN:

arn:aws:lambda:aws-region:acct-id:function:function-name:2

If you specify an alias name, for example PROD , then the permission is valid only for requests made using the alias ARN:

arn:aws:lambda:aws-region:acct-id:function:function-name:PROD

If the qualifier is not specified, the permission is valid only when requests is made using unqualified function ARN.

arn:aws:lambda:aws-region:acct-id:function:function-name

rtype

dict

returns

Response Syntax

{
    'Statement': 'string'
}

Response Structure

• (dict) --

  • Statement (string) --

    The permission statement you specified in the request. The response returns the same as a string using a backslash ("") as an escape character in the JSON.

{'Runtime': ['nodejs4.3']}

Creates a new Lambda function. The function metadata is created from the request parameters, and the code for the function is provided by a .zip file in the request body. If the function name already exists, the operation will fail. Note that the function name is case-sensitive.

If you are using versioning, you can also publish a version of the Lambda function you are creating using the Publish parameter. For more information about versioning, see AWS Lambda Function Versioning and Aliases .

This operation requires permission for the lambda:CreateFunction action.

Request Syntax

client.create_function(
    FunctionName='string',
    Runtime='nodejs'|'nodejs4.3'|'java8'|'python2.7',
    Role='string',
    Handler='string',
    Code={
        'ZipFile': b'bytes',
        'S3Bucket': 'string',
        'S3Key': 'string',
        'S3ObjectVersion': 'string'
    },
    Description='string',
    Timeout=123,
    MemorySize=123,
    Publish=True|False,
    VpcConfig={
        'SubnetIds': [
            'string',
        ],
        'SecurityGroupIds': [
            'string',
        ]
    }
)

type FunctionName

string

param FunctionName

[REQUIRED]

The name you want to assign to the function you are uploading. The function names appear in the console and are returned in the ListFunctions API. Function names are used to specify functions to other AWS Lambda APIs, such as Invoke .

type Runtime

string

param Runtime

[REQUIRED]

The runtime environment for the Lambda function you are uploading.

type Role

string

param Role

[REQUIRED]

The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources. For more information, see AWS Lambda: How it Works .

type Handler

string

param Handler

[REQUIRED]

The function within your code that Lambda calls to begin execution. For Node.js, it is the module-name .*export* value in your function. For Java, it can be package.class-name::handler or package.class-name . For more information, see Lambda Function Handler (Java) .

type Code

dict

param Code

[REQUIRED]

The code for the Lambda function.

• ZipFile (bytes) --

  A zip file containing your deployment package. If you are using the API directly, the zip file must be base64-encoded (if you are using the AWS SDKs or the AWS CLI, the SDKs or CLI will do the encoding for you). For more information about creating a .zip file, go to Execution Permissions in the AWS Lambda Developer Guide .

• S3Bucket (string) --

  Amazon S3 bucket name where the .zip file containing your deployment package is stored. This bucket must reside in the same AWS region where you are creating the Lambda function.

• S3Key (string) --

  The Amazon S3 object (the deployment package) key name you want to upload.

• S3ObjectVersion (string) --

  The Amazon S3 object (the deployment package) version you want to upload.

type Description

string

param Description

A short, user-defined function description. Lambda does not use this value. Assign a meaningful description as you see fit.

type Timeout

integer

param Timeout

The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

type MemorySize

integer

param MemorySize

The amount of memory, in MB, your Lambda function is given. Lambda uses this memory size to infer the amount of CPU and memory allocated to your function. Your function use-case determines your CPU and memory requirements. For example, a database operation might need less memory compared to an image processing function. The default value is 128 MB. The value must be a multiple of 64 MB.

type Publish

boolean

param Publish

This boolean parameter can be used to request AWS Lambda to create the Lambda function and publish a version as an atomic operation.

type VpcConfig

dict

param VpcConfig

If your Lambda function accesses resources in a VPC, you provide this parameter identifying the list of security group IDs and subnet IDs. These must belong to the same VPC. You must provide at least one security group and one subnet ID.

• SubnetIds (list) --

  A list of one or more subnet IDs in your VPC.

  • (string) --

• SecurityGroupIds (list) --

  A list of one or more security groups IDs in your VPC.

  • (string) --

rtype

dict

returns

Response Syntax

{
    'FunctionName': 'string',
    'FunctionArn': 'string',
    'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
    'Role': 'string',
    'Handler': 'string',
    'CodeSize': 123,
    'Description': 'string',
    'Timeout': 123,
    'MemorySize': 123,
    'LastModified': 'string',
    'CodeSha256': 'string',
    'Version': 'string',
    'VpcConfig': {
        'SubnetIds': [
            'string',
        ],
        'SecurityGroupIds': [
            'string',
        ],
        'VpcId': 'string'
    }
}

Response Structure

• (dict) --

  A complex type that describes function metadata.

  • FunctionName (string) --

    The name of the function.

  • FunctionArn (string) --

    The Amazon Resource Name (ARN) assigned to the function.

  • Runtime (string) --

    The runtime environment for the Lambda function.

  • Role (string) --

    The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

  • Handler (string) --

    The function Lambda calls to begin executing your function.

  • CodeSize (integer) --

    The size, in bytes, of the function .zip file you uploaded.

  • Description (string) --

    The user-provided description.

  • Timeout (integer) --

    The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

  • MemorySize (integer) --

    The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

  • LastModified (string) --

    The time stamp of the last time you updated the function.

  • CodeSha256 (string) --

    It is the SHA256 hash of your function deployment package.

  • Version (string) --

    The version of the Lambda function.

  • VpcConfig (dict) --

    VPC configuration associated with your Lambda function.

    • SubnetIds (list) --

      A list of subnet IDs associated with the Lambda function.

      • (string) --

    • SecurityGroupIds (list) --

      A list of security group IDs associated with the Lambda function.

      • (string) --

    • VpcId (string) --

      The VPC ID associated with you Lambda function.

{'Configuration': {'Runtime': ['nodejs4.3']}}

Returns the configuration information of the Lambda function and a presigned URL link to the .zip file you uploaded with CreateFunction so you can download the .zip file. Note that the URL is valid for up to 10 minutes. The configuration information is the same information you provided as parameters when uploading the function.

Using the optional Qualifier parameter, you can specify a specific function version for which you want this information. If you don't specify this parameter, the API uses unqualified function ARN which return information about the $LATEST version of the Lambda function. For more information, see AWS Lambda Function Versioning and Aliases .

This operation requires permission for the lambda:GetFunction action.

Request Syntax

client.get_function(
    FunctionName='string',
    Qualifier='string'
)

type FunctionName

string

param FunctionName

[REQUIRED]

The Lambda function name.

You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.

type Qualifier

string

param Qualifier

Using this optional parameter to specify a function version or an alias name. If you specify function version, the API uses qualified function ARN for the request and returns information about the specific Lambda function version. If you specify an alias name, the API uses the alias ARN and returns information about the function version to which the alias points. If you don't provide this parameter, the API uses unqualified function ARN and returns information about the $LATEST version of the Lambda function.

rtype

dict

returns

Response Syntax

{
    'Configuration': {
        'FunctionName': 'string',
        'FunctionArn': 'string',
        'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
        'Role': 'string',
        'Handler': 'string',
        'CodeSize': 123,
        'Description': 'string',
        'Timeout': 123,
        'MemorySize': 123,
        'LastModified': 'string',
        'CodeSha256': 'string',
        'Version': 'string',
        'VpcConfig': {
            'SubnetIds': [
                'string',
            ],
            'SecurityGroupIds': [
                'string',
            ],
            'VpcId': 'string'
        }
    },
    'Code': {
        'RepositoryType': 'string',
        'Location': 'string'
    }
}

Response Structure

• (dict) --

  This response contains the object for the Lambda function location (see API_FunctionCodeLocation .

  • Configuration (dict) --

    A complex type that describes function metadata.

    • FunctionName (string) --

      The name of the function.

    • FunctionArn (string) --

      The Amazon Resource Name (ARN) assigned to the function.

    • Runtime (string) --

      The runtime environment for the Lambda function.

    • Role (string) --

      The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

    • Handler (string) --

      The function Lambda calls to begin executing your function.

    • CodeSize (integer) --

      The size, in bytes, of the function .zip file you uploaded.

    • Description (string) --

      The user-provided description.

    • Timeout (integer) --

      The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

    • MemorySize (integer) --

      The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

    • LastModified (string) --

      The time stamp of the last time you updated the function.

    • CodeSha256 (string) --

      It is the SHA256 hash of your function deployment package.

    • Version (string) --

      The version of the Lambda function.

    • VpcConfig (dict) --

      VPC configuration associated with your Lambda function.

      • SubnetIds (list) --

        A list of subnet IDs associated with the Lambda function.

        • (string) --

      • SecurityGroupIds (list) --

        A list of security group IDs associated with the Lambda function.

        • (string) --

      • VpcId (string) --

        The VPC ID associated with you Lambda function.

  • Code (dict) --

    The object for the Lambda function location.

    • RepositoryType (string) --

      The repository from which you can download the function.

    • Location (string) --

      The presigned URL you can use to download the function's .zip file that you previously uploaded. The URL is valid for up to 10 minutes.

{'Runtime': ['nodejs4.3']}

Returns the configuration information of the Lambda function. This the same information you provided as parameters when uploading the function by using CreateFunction .

If you are using the versioning feature, you can retrieve this information for a specific function version by using the optional Qualifier parameter and specifying the function version or alias that points to it. If you don't provide it, the API returns information about the $LATEST version of the function. For more information about versioning, see AWS Lambda Function Versioning and Aliases .

This operation requires permission for the lambda:GetFunctionConfiguration operation.

Request Syntax

client.get_function_configuration(
    FunctionName='string',
    Qualifier='string'
)

type FunctionName

string

param FunctionName

[REQUIRED]

The name of the Lambda function for which you want to retrieve the configuration information.

You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.

type Qualifier

string

param Qualifier

Using this optional parameter you can specify a function version or an alias name. If you specify function version, the API uses qualified function ARN and returns information about the specific function version. If you specify an alias name, the API uses the alias ARN and returns information about the function version to which the alias points.

If you don't specify this parameter, the API uses unqualified function ARN, and returns information about the $LATEST function version.

rtype

dict

returns

Response Syntax

{
    'FunctionName': 'string',
    'FunctionArn': 'string',
    'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
    'Role': 'string',
    'Handler': 'string',
    'CodeSize': 123,
    'Description': 'string',
    'Timeout': 123,
    'MemorySize': 123,
    'LastModified': 'string',
    'CodeSha256': 'string',
    'Version': 'string',
    'VpcConfig': {
        'SubnetIds': [
            'string',
        ],
        'SecurityGroupIds': [
            'string',
        ],
        'VpcId': 'string'
    }
}

Response Structure

• (dict) --

  A complex type that describes function metadata.

  • FunctionName (string) --

    The name of the function.

  • FunctionArn (string) --

    The Amazon Resource Name (ARN) assigned to the function.

  • Runtime (string) --

    The runtime environment for the Lambda function.

  • Role (string) --

    The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

  • Handler (string) --

    The function Lambda calls to begin executing your function.

  • CodeSize (integer) --

    The size, in bytes, of the function .zip file you uploaded.

  • Description (string) --

    The user-provided description.

  • Timeout (integer) --

    The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

  • MemorySize (integer) --

    The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

  • LastModified (string) --

    The time stamp of the last time you updated the function.

  • CodeSha256 (string) --

    It is the SHA256 hash of your function deployment package.

  • Version (string) --

    The version of the Lambda function.

  • VpcConfig (dict) --

    VPC configuration associated with your Lambda function.

    • SubnetIds (list) --

      A list of subnet IDs associated with the Lambda function.

      • (string) --

    • SecurityGroupIds (list) --

      A list of security group IDs associated with the Lambda function.

      • (string) --

    • VpcId (string) --

      The VPC ID associated with you Lambda function.

{'Functions': {'Runtime': ['nodejs4.3']}}

Returns a list of your Lambda functions. For each function, the response includes the function configuration information. You must use GetFunction to retrieve the code for your function.

This operation requires permission for the lambda:ListFunctions action.

If you are using versioning feature, the response returns list of $LATEST versions of your functions. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases .

Request Syntax

client.list_functions(
    Marker='string',
    MaxItems=123
)

type Marker

string

param Marker

Optional string. An opaque pagination token returned from a previous ListFunctions operation. If present, indicates where to continue the listing.

type MaxItems

integer

param MaxItems

Optional integer. Specifies the maximum number of AWS Lambda functions to return in response. This parameter value must be greater than 0.

rtype

dict

returns

Response Syntax

{
    'NextMarker': 'string',
    'Functions': [
        {
            'FunctionName': 'string',
            'FunctionArn': 'string',
            'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
            'Role': 'string',
            'Handler': 'string',
            'CodeSize': 123,
            'Description': 'string',
            'Timeout': 123,
            'MemorySize': 123,
            'LastModified': 'string',
            'CodeSha256': 'string',
            'Version': 'string',
            'VpcConfig': {
                'SubnetIds': [
                    'string',
                ],
                'SecurityGroupIds': [
                    'string',
                ],
                'VpcId': 'string'
            }
        },
    ]
}

Response Structure

• (dict) --

  Contains a list of AWS Lambda function configurations (see FunctionConfiguration .

  • NextMarker (string) --

    A string, present if there are more functions.

  • Functions (list) --

    A list of Lambda functions.

    • (dict) --

      A complex type that describes function metadata.

      • FunctionName (string) --

        The name of the function.

      • FunctionArn (string) --

        The Amazon Resource Name (ARN) assigned to the function.

      • Runtime (string) --

        The runtime environment for the Lambda function.

      • Role (string) --

        The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

      • Handler (string) --

        The function Lambda calls to begin executing your function.

      • CodeSize (integer) --

        The size, in bytes, of the function .zip file you uploaded.

      • Description (string) --

        The user-provided description.

      • Timeout (integer) --

        The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

      • MemorySize (integer) --

        The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

      • LastModified (string) --

        The time stamp of the last time you updated the function.

      • CodeSha256 (string) --

        It is the SHA256 hash of your function deployment package.

      • Version (string) --

        The version of the Lambda function.

      • VpcConfig (dict) --

        VPC configuration associated with your Lambda function.

        • SubnetIds (list) --

          A list of subnet IDs associated with the Lambda function.

          • (string) --

        • SecurityGroupIds (list) --

          A list of security group IDs associated with the Lambda function.

          • (string) --

        • VpcId (string) --

          The VPC ID associated with you Lambda function.

{'Versions': {'Runtime': ['nodejs4.3']}}

List all versions of a function. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases .

Request Syntax

client.list_versions_by_function(
    FunctionName='string',
    Marker='string',
    MaxItems=123
)

type FunctionName

string

param FunctionName

[REQUIRED]

Function name whose versions to list. You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.

type Marker

string

param Marker

Optional string. An opaque pagination token returned from a previous ListVersionsByFunction operation. If present, indicates where to continue the listing.

type MaxItems

integer

param MaxItems

Optional integer. Specifies the maximum number of AWS Lambda function versions to return in response. This parameter value must be greater than 0.

rtype

dict

returns

Response Syntax

{
    'NextMarker': 'string',
    'Versions': [
        {
            'FunctionName': 'string',
            'FunctionArn': 'string',
            'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
            'Role': 'string',
            'Handler': 'string',
            'CodeSize': 123,
            'Description': 'string',
            'Timeout': 123,
            'MemorySize': 123,
            'LastModified': 'string',
            'CodeSha256': 'string',
            'Version': 'string',
            'VpcConfig': {
                'SubnetIds': [
                    'string',
                ],
                'SecurityGroupIds': [
                    'string',
                ],
                'VpcId': 'string'
            }
        },
    ]
}

Response Structure

• (dict) --

  • NextMarker (string) --

    A string, present if there are more function versions.

  • Versions (list) --

    A list of Lambda function versions.

    • (dict) --

      A complex type that describes function metadata.

      • FunctionName (string) --

        The name of the function.

      • FunctionArn (string) --

        The Amazon Resource Name (ARN) assigned to the function.

      • Runtime (string) --

        The runtime environment for the Lambda function.

      • Role (string) --

        The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

      • Handler (string) --

        The function Lambda calls to begin executing your function.

      • CodeSize (integer) --

        The size, in bytes, of the function .zip file you uploaded.

      • Description (string) --

        The user-provided description.

      • Timeout (integer) --

        The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

      • MemorySize (integer) --

        The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

      • LastModified (string) --

        The time stamp of the last time you updated the function.

      • CodeSha256 (string) --

        It is the SHA256 hash of your function deployment package.

      • Version (string) --

        The version of the Lambda function.

      • VpcConfig (dict) --

        VPC configuration associated with your Lambda function.

        • SubnetIds (list) --

          A list of subnet IDs associated with the Lambda function.

          • (string) --

        • SecurityGroupIds (list) --

          A list of security group IDs associated with the Lambda function.

          • (string) --

        • VpcId (string) --

          The VPC ID associated with you Lambda function.

{'Runtime': ['nodejs4.3']}

Publishes a version of your function from the current snapshot of $LATEST. That is, AWS Lambda takes a snapshot of the function code and configuration information from $LATEST and publishes a new version. The code and configuration cannot be modified after publication. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases .

Request Syntax

client.publish_version(
    FunctionName='string',
    CodeSha256='string',
    Description='string'
)

type FunctionName

string

param FunctionName

[REQUIRED]

The Lambda function name. You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.

type CodeSha256

string

param CodeSha256

The SHA256 hash of the deployment package you want to publish. This provides validation on the code you are publishing. If you provide this parameter value must match the SHA256 of the $LATEST version for the publication to succeed.

type Description

string

param Description

The description for the version you are publishing. If not provided, AWS Lambda copies the description from the $LATEST version.

rtype

dict

returns

Response Syntax

{
    'FunctionName': 'string',
    'FunctionArn': 'string',
    'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
    'Role': 'string',
    'Handler': 'string',
    'CodeSize': 123,
    'Description': 'string',
    'Timeout': 123,
    'MemorySize': 123,
    'LastModified': 'string',
    'CodeSha256': 'string',
    'Version': 'string',
    'VpcConfig': {
        'SubnetIds': [
            'string',
        ],
        'SecurityGroupIds': [
            'string',
        ],
        'VpcId': 'string'
    }
}

Response Structure

• (dict) --

  A complex type that describes function metadata.

  • FunctionName (string) --

    The name of the function.

  • FunctionArn (string) --

    The Amazon Resource Name (ARN) assigned to the function.

  • Runtime (string) --

    The runtime environment for the Lambda function.

  • Role (string) --

    The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

  • Handler (string) --

    The function Lambda calls to begin executing your function.

  • CodeSize (integer) --

    The size, in bytes, of the function .zip file you uploaded.

  • Description (string) --

    The user-provided description.

  • Timeout (integer) --

    The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

  • MemorySize (integer) --

    The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

  • LastModified (string) --

    The time stamp of the last time you updated the function.

  • CodeSha256 (string) --

    It is the SHA256 hash of your function deployment package.

  • Version (string) --

    The version of the Lambda function.

  • VpcConfig (dict) --

    VPC configuration associated with your Lambda function.

    • SubnetIds (list) --

      A list of subnet IDs associated with the Lambda function.

      • (string) --

    • SecurityGroupIds (list) --

      A list of security group IDs associated with the Lambda function.

      • (string) --

    • VpcId (string) --

      The VPC ID associated with you Lambda function.

{'Runtime': ['nodejs4.3']}

Updates the code for the specified Lambda function. This operation must only be used on an existing Lambda function and cannot be used to update the function configuration.

If you are using the versioning feature, note this API will always update the $LATEST version of your Lambda function. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases .

This operation requires permission for the lambda:UpdateFunctionCode action.

Request Syntax

client.update_function_code(
    FunctionName='string',
    ZipFile=b'bytes',
    S3Bucket='string',
    S3Key='string',
    S3ObjectVersion='string',
    Publish=True|False
)

type FunctionName

string

param FunctionName

[REQUIRED]

The existing Lambda function name whose code you want to replace.

You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.

type ZipFile

bytes

param ZipFile

Based64-encoded .zip file containing your packaged source code.

type S3Bucket

string

param S3Bucket

Amazon S3 bucket name where the .zip file containing your deployment package is stored. This bucket must reside in the same AWS region where you are creating the Lambda function.

type S3Key

string

param S3Key

The Amazon S3 object (the deployment package) key name you want to upload.

type S3ObjectVersion

string

param S3ObjectVersion

The Amazon S3 object (the deployment package) version you want to upload.

type Publish

boolean

param Publish

This boolean parameter can be used to request AWS Lambda to update the Lambda function and publish a version as an atomic operation.

rtype

dict

returns

Response Syntax

{
    'FunctionName': 'string',
    'FunctionArn': 'string',
    'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
    'Role': 'string',
    'Handler': 'string',
    'CodeSize': 123,
    'Description': 'string',
    'Timeout': 123,
    'MemorySize': 123,
    'LastModified': 'string',
    'CodeSha256': 'string',
    'Version': 'string',
    'VpcConfig': {
        'SubnetIds': [
            'string',
        ],
        'SecurityGroupIds': [
            'string',
        ],
        'VpcId': 'string'
    }
}

Response Structure

• (dict) --

  A complex type that describes function metadata.

  • FunctionName (string) --

    The name of the function.

  • FunctionArn (string) --

    The Amazon Resource Name (ARN) assigned to the function.

  • Runtime (string) --

    The runtime environment for the Lambda function.

  • Role (string) --

    The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

  • Handler (string) --

    The function Lambda calls to begin executing your function.

  • CodeSize (integer) --

    The size, in bytes, of the function .zip file you uploaded.

  • Description (string) --

    The user-provided description.

  • Timeout (integer) --

    The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

  • MemorySize (integer) --

    The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

  • LastModified (string) --

    The time stamp of the last time you updated the function.

  • CodeSha256 (string) --

    It is the SHA256 hash of your function deployment package.

  • Version (string) --

    The version of the Lambda function.

  • VpcConfig (dict) --

    VPC configuration associated with your Lambda function.

    • SubnetIds (list) --

      A list of subnet IDs associated with the Lambda function.

      • (string) --

    • SecurityGroupIds (list) --

      A list of security group IDs associated with the Lambda function.

      • (string) --

    • VpcId (string) --

      The VPC ID associated with you Lambda function.

{'Runtime': 'nodejs | nodejs4.3 | java8 | python2.7'}

{'Runtime': ['nodejs4.3']}

Updates the configuration parameters for the specified Lambda function by using the values provided in the request. You provide only the parameters you want to change. This operation must only be used on an existing Lambda function and cannot be used to update the function's code.

If you are using the versioning feature, note this API will always update the $LATEST version of your Lambda function. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases .

This operation requires permission for the lambda:UpdateFunctionConfiguration action.

Request Syntax

client.update_function_configuration(
    FunctionName='string',
    Role='string',
    Handler='string',
    Description='string',
    Timeout=123,
    MemorySize=123,
    VpcConfig={
        'SubnetIds': [
            'string',
        ],
        'SecurityGroupIds': [
            'string',
        ]
    },
    Runtime='nodejs'|'nodejs4.3'|'java8'|'python2.7'
)

type FunctionName

string

param FunctionName

[REQUIRED]

The name of the Lambda function.

You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.

type Role

string

param Role

The Amazon Resource Name (ARN) of the IAM role that Lambda will assume when it executes your function.

type Handler

string

param Handler

The function that Lambda calls to begin executing your function. For Node.js, it is the module-name.export value in your function.

type Description

string

param Description

A short user-defined function description. AWS Lambda does not use this value. Assign a meaningful description as you see fit.

type Timeout

integer

param Timeout

The function execution time at which AWS Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

type MemorySize

integer

param MemorySize

The amount of memory, in MB, your Lambda function is given. AWS Lambda uses this memory size to infer the amount of CPU allocated to your function. Your function use-case determines your CPU and memory requirements. For example, a database operation might need less memory compared to an image processing function. The default value is 128 MB. The value must be a multiple of 64 MB.

type VpcConfig

dict

param VpcConfig

If your Lambda function accesses resources in a VPC, you provide this parameter identifying the list of security group IDs and subnet IDs. These must belong to the same VPC. You must provide at least one security group and one subnet ID.

• SubnetIds (list) --

  A list of one or more subnet IDs in your VPC.

  • (string) --

• SecurityGroupIds (list) --

  A list of one or more security groups IDs in your VPC.

  • (string) --

type Runtime

string

param Runtime

rtype

dict

returns

Response Syntax

{
    'FunctionName': 'string',
    'FunctionArn': 'string',
    'Runtime': 'nodejs'|'nodejs4.3'|'java8'|'python2.7',
    'Role': 'string',
    'Handler': 'string',
    'CodeSize': 123,
    'Description': 'string',
    'Timeout': 123,
    'MemorySize': 123,
    'LastModified': 'string',
    'CodeSha256': 'string',
    'Version': 'string',
    'VpcConfig': {
        'SubnetIds': [
            'string',
        ],
        'SecurityGroupIds': [
            'string',
        ],
        'VpcId': 'string'
    }
}

Response Structure

• (dict) --

  A complex type that describes function metadata.

  • FunctionName (string) --

    The name of the function.

  • FunctionArn (string) --

    The Amazon Resource Name (ARN) assigned to the function.

  • Runtime (string) --

    The runtime environment for the Lambda function.

  • Role (string) --

    The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.

  • Handler (string) --

    The function Lambda calls to begin executing your function.

  • CodeSize (integer) --

    The size, in bytes, of the function .zip file you uploaded.

  • Description (string) --

    The user-provided description.

  • Timeout (integer) --

    The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.

  • MemorySize (integer) --

    The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.

  • LastModified (string) --

    The time stamp of the last time you updated the function.

  • CodeSha256 (string) --

    It is the SHA256 hash of your function deployment package.

  • Version (string) --

    The version of the Lambda function.

  • VpcConfig (dict) --

    VPC configuration associated with your Lambda function.

    • SubnetIds (list) --

      A list of subnet IDs associated with the Lambda function.

      • (string) --

    • SecurityGroupIds (list) --

      A list of security group IDs associated with the Lambda function.

      • (string) --

    • VpcId (string) --

      The VPC ID associated with you Lambda function.