🏗️ Microservices Architecture

This project implements a microservices-based system.
All services communicate through the API Gateway, and some interactions are asynchronous via Kafka.

📌 Architecture Overview

• Frontend (ReactJS) – user interface.
• API Gateway – single entry point for clients, request routing, and aggregation.
• Authentication Service – handles authentication and authorization.
• User Service – user management (REST API + Redis caching).
• Order Service – order management.
• Payment Service – payment handling (integration with external APIs).
• Kafka – message broker for asynchronous communication.
• Databases:
  • PostgreSQL – authentication, users, and orders.
  • MongoDB – payments.
  • Redis – caching for User Service.

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⚙️ Tech Stack

• Backend: Java (Spring Boot)
• Frontend: ReactJS
• Message Broker: Kafka
• Databases:
  • PostgreSQL
  • MongoDB
  • Redis
• Communication: REST + Event-driven

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