"# AWS"

1. lambda-sqs-cdk -> IaC demo

AWS IaC Demos

This repository contains AWS Infrastructure as Code (IaC) demos using AWS CDK with TypeScript.

Project Structure

• lambda-sqs-cdk/: Main CDK project for deploying a Lambda + SQS + API Gateway stack.
  • bin/: CDK app entrypoint.
  • lib/: CDK stack definition (lambda-sqs-cdk-stack.ts).
  • lambda/: Lambda function source code.
    • api/: Lambda for API Gateway integration.
    • consumer/: Lambda for SQS message consumption.
  • layer/axios-node/: Lambda layer for sharing the axios library.
  • test/: Jest unit tests.
  • cdk.json, tsconfig.json, package.json: Project configuration files.
• .github/workflows/: GitHub Actions CI/CD workflows for build and deploy.

Getting Started

Prerequisites

• Node.js 20+
• AWS CLI configured (aws configure)
• AWS CDK (npm install -g aws-cdk)

Install Dependencies

cd lambda-sqs-cdk
npm install

Build the Project

npm run build

Deploy the Stack

npx cdk bootstrap
npx cdk deploy

Run Tests

npm run test

CI/CD

• Automated deployment is configured via deploy.yml on pushes to main.

Lambda Functions

• API Lambda (lambda/api/index.js): Receives HTTP requests and sends messages to SQS.
• Consumer Lambda (lambda/consumer/index.js): Processes messages from SQS and makes HTTP requests using axios from a shared Lambda layer.

Architecture

See lambda-sqs-cdk/Architecture.png for a diagram of the deployed resources.

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