PayPal Backend Clone 🚀

A production-grade PayPal-like payment backend system built with Spring Boot microservices and modern cloud-native technologies.

🧠 System Goals

• High scalability
• Fault tolerance
• Event-driven architecture
• Observability-first design
• Production-ready coding practices

🛠 Tech Stack

• Java 17 + Spring Boot
• Spring Cloud Gateway
• Kafka
• Redis
• MySQL
• Neo4j
• Docker & Docker Compose
• Prometheus + Grafana
• Zipkin

🧩 Microservices

• API Gateway
• Auth Service
• User Service
• Wallet Service
• Ledger Service
• Payment Service
• Transaction Graph Service
• Notification Service

📐 Architecture

(Diagram coming soon)

🚦 Project Status

🚧 In Progress – Foundation setup

📌 Author

Built with ❤️ by Yash chauhan