rollup-typescript-aws-serverless-stack.ts

import * as cdk from 'aws-cdk-lib';
import { Construct } from 'constructs';
import * as lambda from 'aws-cdk-lib/aws-lambda';
import * as dynamodb from 'aws-cdk-lib/aws-dynamodb';
import * as sqs from 'aws-cdk-lib/aws-sqs';
import * as lambdaEventSources from 'aws-cdk-lib/aws-lambda-event-sources';

export class RollupTypescriptAwsServerlessStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // Create a DynamoDB table
    const table = new dynamodb.Table(this, 'MyTable', {
      partitionKey: { name: 'messageId', type: dynamodb.AttributeType.STRING },
      removalPolicy: cdk.RemovalPolicy.DESTROY, // NOT recommended for production code
    });

    // Create an SQS queue
    const queue = new sqs.Queue(this, 'MyQueue', {
      visibilityTimeout: cdk.Duration.seconds(30),
    });

    // Create a Lambda function
    const myLambda = new lambda.Function(this, 'MyLambdaFunction', {
      runtime: lambda.Runtime.NODEJS_18_X,
      handler: 'lambdaExample.handler',
      code: lambda.Code.fromAsset('dist'),
      environment: {
        TABLE_NAME: table.tableName,
      },
    });

    // Grant Lambda function permissions to interact with DynamoDB
    table.grantReadWriteData(myLambda);

    // Add SQS as an event source for the Lambda function
    myLambda.addEventSource(new lambdaEventSources.SqsEventSource(queue));
  }
}