aws_ddk_core.resources.LambdaFactory

class aws_ddk_core.resources.LambdaFactory

Class factory to create and configure Lambda DDK resources, including Functions.

__init__()

Methods

__init__()

add_vpc_permissions(fn)

function(scope, id, environment_id, code, ...)

Create and configure Lambda function.
static function(scope: constructs.Construct, id: str, environment_id: str, code: aws_cdk.aws_lambda.Code, handler: str, runtime: aws_cdk.aws_lambda.Runtime = <aws_cdk.aws_lambda.Runtime object>, function_name: typing.Optional[str] = None, description: typing.Optional[str] = None, role: typing.Optional[aws_cdk.aws_iam.IRole] = None, dead_letter_queue_enabled: typing.Optional[bool] = None, dead_letter_queue: typing.Optional[aws_cdk.aws_sqs.IQueue] = None, memory_size: typing.Optional[int] = None, timeout: typing.Optional[aws_cdk.Duration] = None, **function_props: typing.Any) → aws_cdk.aws_lambda.IFunction

Create and configure Lambda function.

This construct allows to configure parameters of the function using ddk.json configuration file depending on the environment_id in which the function is used. Supported parameters are: dead_letter_queue_enabled,`memory_size`, environment, profiling, reserved_concurrent_executions, timeout, tracing, max_event_age, retry_attempts, allow_all_outbound, and allow_public_subnet.

The parameters are respected in the following order: 1 - Explicit arguments are always preferred 2 - Values from configuration file 3 - Defaults are used otherwise

Parameters

  • scope (Construct) – Scope within which this construct is defined

  • id (str) – Identifier of the Lambda function

  • environment_id (str) – Identifier of the environment

  • code (Code) – The source code of the Lambda function

  • handler (str) – The name of the method within the code that Lambda calls to execute the function

  • runtime (Runtime) – The runtime environment for the Lambda function

  • function_name (Optional[str]) – The name of the Lambda function

  • description (Optional[str]) – The description of the Lambda function

  • role (Optional[IRole]) – Lambda execution role

  • dead_letter_queue_enabled (Optional[bool]) – Determines if DLQ is enabled. False by default.

  • dead_letter_queue (Optional[IQueue]) – The SQS queue to use if DLQ is enabled

  • memory_size (Optional[int]) – The amount of memory, in MB, that is allocated to the Lambda function. 256 by default.

  • timeout (Optional[Duration]) – The function execution time (in seconds) after which Lambda terminates the function. aws_cdk.Duration.seconds(120) by default.

  • function_props (Any) – Additional function properties. For complete list of properties refer to CDK Documentation - Lambda Function: https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_lambda/Function.html

Returns

fn – Lambda function

Return type

aws_cdk.aws_lambda.Function