💬 MERN Socket.IO Chat Application

A real-time chat application built using the MERN stack (MongoDB, Express, React, Node.js) with Socket.IO for instant messaging.

🚀 Features

• 🔐 User authentication (JWT-based)
• 💬 Real-time one-to-one chat
• ⚡ Instant message delivery using Socket.IO
• 🟢 Online/offline user status
• 📜 Chat history stored in MongoDB
• 📱 Responsive UI

🛠️ Tech Stack

Frontend

• React
• Zustand
• Daisy UI
• Socket.IO Client
• TailwindCSS

Backend

• Node.js
• Express.js
• MongoDB
• Socket.IO

📂 Setup .env file

MONGODB_URI=...
PORT=...
JWT_SECRET=...

CLOUDINARY_CLOUD_NAME=...
CLOUDINARY_API_KEY=...
CLOUDINARY_API_SECRET=...

NODE_ENV=...

Build the app

npm run build

Start the app

npm run start