This project deploys a serverless application using AWS CDK with TypeScript, including API Gateway, Lambda, and DynamoDB.
- Node.js 18.x or later
- AWS CLI configured
- AWS CDK CLI (
npm install -g aws-cdk)
- Install dependencies
npm install
AWS_ACCOUNT_ID=account-id
AWS_REGION=aws-region
Deploy
cdk bootstrap # First time only
cdk deploy
Stack Components
API Gateway REST API
Lambda Function (Node.js)
DynamoDB Table
CloudWatch Logging
Request flow :
Client → API Gateway → Lambda → DynamoDB
↑ ↓ ↓ ↓
└──────── Response ← Data ← Databasen
Useful Commands
npm run build # Compile TypeScript
npm run test # Run tests
cdk diff # Compare changes
cdk synth # Generate CloudFormation
API Endpoints
GET /scan - Returns log stream name
Security
IAM authentication enabled
Environment variables for sensitive data
AWS managed encryption
## Security & Monitoring
- API Gateway logs to CloudWatch
- Lambda execution tracing with X-Ray
- IAM roles with least privilege
- CORS configured for API endpoints
## Infrastructure as Code
- Defined using AWS CDK in TypeScript
- Automated deployment via CloudFormation
- Environment-specific tagging
- Environment: Development
- Project: DemoAPI
## Stack Outputs
- API Gateway URL
- DynamoDB table name
## Scaling
- Lambda: Auto-scales based on demand
- DynamoDB: Pay-per-request auto-scaling
- API Gateway: Handles scaling automatically