💬 Real-Time Chat Application

A real-time web chat application built using Spring Boot, WebSockets, STOMP, and Thymeleaf.
This application enables multiple users to communicate instantly through a shared chat interface.

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🚀 Live Demo

🌐 https://chatapplication-3-0ixj.onrender.com

Note: Since the app is hosted on a free Render instance, it may take 30–50 seconds to wake up after inactivity.

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📌 Features

• ⚡ Real-time messaging using WebSockets
• 📡 Communication using STOMP messaging protocol
• 🧠 Backend powered by Spring Boot
• 🎨 Dynamic frontend using Thymeleaf
• 🌌 Modern UI
• 👥 Multi-user chat support
• 📦 Dockerized deployment
• ☁ Cloud deployment using Render

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🛠 Tech Stack

Backend

• Java
• Spring Boot
• Spring WebSocket
• STOMP Protocol

Frontend

• HTML
• CSS
• JavaScript
• Thymeleaf

Deployment

• Render Cloud

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⚙️ How It Works

1. A user opens the chat page in their browser.

2. The frontend establishes a WebSocket connection with the server.

3. Messages are sent to the backend endpoint: /app/sendMessage

4. The Spring Boot server processes the message.

5. The message is broadcast to all connected users through:

6. Every connected client instantly receives the new message.

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🧪 Running the Project Locally

Clone the repository:

git clone https://github.com/xnisha-verma/ChatApplication.git
cd ChatApplication/App
./mvnw spring-boot:run
http://localhost:8080