aws-events-rule-lambda module

> Some of our early constructs don’t meet the naming standards that evolved for the library. We are releasing completely feature compatible versions with corrected names. The underlying implementation code is the same regardless of whether you deploy the construct using the old or new name. We will support both names for all 1.x releases, but in 2.x we will only publish the correctly named constructs. This construct is being replaced by the functionally identical aws-eventbridge-lambda.

Language	Package
Python	aws_solutions_constructs.aws_events_rule_lambda
Typescript	@aws-solutions-constructs/aws-events-rule-lambda
Java	software.amazon.awsconstructs.services.eventsrulelambda

Overview

This AWS Solutions Construct implements an AWS Events rule and an AWS Lambda function.

Here is a minimal deployable pattern definition:

Typescript

// aws-events-rule-lambda has been deprecated for CDK V2 in favor of aws-eventbridge-lambda.
// This sample uses the CDK V1 syntax
import * as cdk from '@aws-cdk/core';
import * as lambda from '@aws-cdk/aws-lambda';
import * as events from '@aws-cdk/aws-events';
import { EventsRuleToLambdaProps, EventsRuleToLambda } from '@aws-solutions-constructs/aws-events-rule-lambda';

const constructProps: EventsRuleToLambdaProps = {
  lambdaFunctionProps: {
    code: lambda.Code.fromAsset(`lambda`),
    runtime: lambda.Runtime.NODEJS_14_X,
    handler: 'index.handler'
  },
  eventRuleProps: {
    schedule: events.Schedule.rate(cdk.Duration.minutes(5))
  }
};

new EventsRuleToLambda(this, 'test-events-rule-lambda', constructProps);

Python

# aws-events-rule-lambda has been deprecated for CDK V2 in favor of aws-eventbridge-lambda.
# This sample uses the CDK V1 syntax
from aws_solutions_constructs.aws_events_rule_lambda import EventsRuleToLambdaProps, EventsRuleToLambda
from aws_cdk import (
    aws_lambda as _lambda,
    aws_events as events,
    core
)

EventsRuleToLambda(self, 'test_events_rule_lambda',
                lambda_function_props=_lambda.FunctionProps(
                    code=_lambda.Code.from_asset('lambda'),
                    runtime=_lambda.Runtime.PYTHON_3_9,
                    handler='index.handler'
                ),
                event_rule_props=events.RuleProps(
                    schedule=events.Schedule.rate(core.Duration.minutes(5))
                ))

Java

// aws-events-rule-lambda has been deprecated for CDK V2 in favor of aws-eventbridge-lambda.
// This sample uses the CDK V1 syntax
import software.constructs.Construct;

import software.amazon.awscdk.core.*;
import software.amazon.awscdk.services.events.*;
import software.amazon.awscdk.services.lambda.*;
import software.amazon.awscdk.services.lambda.Runtime;
import software.amazon.awsconstructs.services.eventsrulelambda.*;

new EventsRuleToLambda(this, "test-events-rule-lambda",
        new EventsRuleToLambdaProps.Builder()
                .lambdaFunctionProps(new FunctionProps.Builder()
                        .runtime(Runtime.NODEJS_14_X)
                        .code(Code.fromAsset("lambda"))
                        .handler("index.handler")
                        .build())
                .eventRuleProps(new RuleProps.Builder()
                        .schedule(Schedule.rate(Duration.minutes(5)))
                        .build())
                .build());

Pattern Construct Props

Pattern Properties

Default settings

Out of the box implementation of the Construct without any override will set the following defaults:

Amazon CloudWatch Events Rule

• Grant least privilege permissions to CloudWatch Events to trigger the Lambda Function

AWS Lambda Function

• Configure limited privilege access IAM role for Lambda function
• Enable reusing connections with Keep-Alive for NodeJs Lambda function
• Enable X-Ray Tracing
• Set Environment Variables
• AWS_NODEJS_CONNECTION_REUSE_ENABLED (for Node 10.x and higher functions)

Architecture

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