Headless E-commerce Platform with FastAPI & React

As a Senior Software Developer, I designed and implemented a scalable headless e-commerce platform using FastAPI and React. The project follows a modular and decoupled architecture, where the frontend and backend communicate via RESTful APIs, allowing for seamless integration with mobile apps or third-party services. The backend, built with FastAPI, handles user authentication (JWT-based), product management, cart operations, and order processing. Data is persisted using MySQL for relational data (users, orders) and MongoDB for flexible product catalog storage. Redis is used for caching sessions, carts, and frequently accessed product data to boost performance. On the frontend, React is used to build a responsive, single-page application with dynamic routing, product listing, shopping cart functionality, and secure checkout flows. Axios is used for API communication, and TailwindCSS is integrated for fast UI development. The entire stack is containerized with Docker and deployed using GitHub Actions and Nginx for reverse proxy and static asset delivery.

Architecture Overview:
Frontend (React SPA) → FastAPI Backend (REST API) → MongoDB (Product Catalog), MySQL (Orders & Users) → Redis (Cache)