🚀 Relay — Real-Time Chat Backend

A scalable real-time chat backend built using Spring Boot. Designed to handle real-time messaging for both web and mobile clients using WebSockets.

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🔥 Features

• 💬 Real-time messaging (WebSocket)
• 🔐 JWT-based authentication (coming soon)
• 👤 User registration & login
• 📦 Message persistence (JPA + DB)
• ⚡ High-performance backend architecture
• 🌐 Supports both Web & Mobile clients

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🧠 Tech Stack

• Java 25
• Spring Boot
• Spring WebSocket
• Spring Security (JWT)
• Spring Data JPA
• PostgreSQL / H2 (development)
• Maven

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🏗️ Architecture

Client → REST API → Service → Repository → Database Client ↔ WebSocket ↔ Server ↔ Database

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📁 Project Structure

com.sarvy.relay
│
├── controller/
├── service/
├── repository/
├── model/
├── dto/
├── config/
├── security/
└── RelayApplication.java

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⚙️ Getting Started

1️⃣ Clone the repository

git clone https://github.com/Sarvesh2005-code/relay-realtime-chat.git
cd relay-realtime-chat

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2️⃣ Run the application

Make sure Java 25 is installed.

mvn spring-boot:run

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3️⃣ Access API

http://localhost:8080

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🧪 Development Setup

• H2 in-memory database for quick setup
• PostgreSQL for production

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🚀 Future Enhancements

• ✅ JWT Authentication
• ✅ Private & Group Chats
• ✅ Typing Indicators
• ✅ Read Receipts
• ✅ Redis for scalability
• ✅ Docker deployment

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🎯 Goal

This project is built to demonstrate:

• Real-time system design
• Backend scalability
• Clean architecture using Spring Boot

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👨‍💻 Author

Sarvesh Nakhale Java Backend Developer | Spring Boot Enthusiast

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