This repository contains small applications that showcase different AWS services. Each project focuses on a specific combination of services and the skills required to use them.

• S3
• Fargate
• VPC
• CloudFormation
• API Gateway
• Aurora
• Lambda
• Secrets Manager
• DynamoDB
• CloudFront
• CloudWatch
• Route 53
• AWS CDK
• IAM
• SQS
• Cognito

1. xcloud-shelf – Static website hosting with a CDN, custom domain, visitor metrics, and monitoring.

   • Services: S3, CloudFront, Route 53, Lambda, API Gateway, DynamoDB, CloudWatch, IAM
   • Key skills: bucket policies, static hosting, SSL/TLS via ACM, CDN caching, DNS records, serverless APIs, DynamoDB counters, monitoring and alarms

2. xpic-press – Serverless image resizer API triggered by S3 uploads.

   • Services: S3, Lambda, API Gateway, IAM, CloudWatch
   • Key skills: S3 event triggers, Lambda runtime tuning, API Gateway logging, CloudWatch metrics

3. xlock-note – Secure notes app with authentication and encrypted storage.

   • Services: Cognito, API Gateway, Lambda, DynamoDB, Secrets Manager, IAM
   • Key skills: user pools and app clients, secure Lambda–DynamoDB access, secrets retrieval, least-privilege IAM roles

4. xqueue-chat – Chat messaging queue processed asynchronously.

   • Services: SQS, Lambda, DynamoDB, CloudWatch
   • Key skills: standard vs. FIFO queues, dead-letter queues, Lambda batch processing, DynamoDB table design

5. xaurora-cart – REST microservice on Fargate backed by Aurora Serverless.

   • Services: VPC, Fargate (ECS), Aurora Serverless, IAM, CloudWatch, CDK
   • Key skills: subnet and security group design, ECS task definitions and scaling, Aurora provisioning, container logging, IaC with CDK

6. xmega-mart – Full e-commerce mock that ties together previous patterns.

   • Services: S3, CloudFront, Route 53, Cognito, API Gateway, Lambda, DynamoDB, SQS, Fargate, Aurora, CDK
   • Key skills: multi-service architecture, cross-service IAM permissions, deployment pipelines

7. xdash-stream – Real-time analytics dashboard with scheduled aggregations.

   • Services: API Gateway, Lambda, DynamoDB, CloudWatch, S3, CloudFront, IAM, CDK
   • Key skills: streaming writes to DynamoDB, scheduled Lambda for aggregation, static dashboard hosting with dynamic API integration, CDK deployment

Each project resides in its own directory with a README containing more detailed setup instructions.