Overview

A fully serverless REST API built entirely on AWS cloud services, demonstrating modern cloud-native architecture and DevOps best practices. This project showcases the power of serverless computing for building scalable, cost-effective APIs without managing infrastructure.

Technologies Used

  • AWS Lambda - Serverless compute for API logic
  • API Gateway - HTTP endpoint management and request routing
  • DynamoDB - NoSQL database for data persistence
  • AWS CodePipeline - Automated CI/CD orchestration
  • AWS CodeBuild - Build and testing automation
  • CloudFormation/SAM - Infrastructure as Code

Key Features

  • 100% Serverless - No servers to manage, automatic scaling
  • RESTful Design - Clean API architecture following REST principles
  • Automated Testing - Unit and integration tests run on every commit
  • CI/CD Pipeline - Automated deployment from code commit to production
  • Cost Optimized - Pay-per-use pricing model with minimal idle costs
  • High Availability - Multi-AZ deployment with automatic failover

Architecture Highlights

The API leverages AWS Lambda functions triggered by API Gateway endpoints, with DynamoDB providing fast, scalable data storage. The CI/CD pipeline automatically tests and deploys changes, ensuring code quality and rapid iteration.

Challenges & Solutions

  • Cold Start Optimization - Implemented provisioned concurrency for critical endpoints
  • Database Design - Optimized DynamoDB schema for single-table design patterns
  • Testing Strategy - Built comprehensive test suite covering unit, integration, and end-to-end scenarios

Outcomes

  • Zero infrastructure management overhead
  • Sub-second API response times
  • Automated deployments reducing release time by 90%
  • 99.9% uptime achieved through AWS managed services