💬 Hola – Real-Time Full-Stack Chat App

Hola is a modern, full-stack real-time chat application with secure authentication, responsive UI, and persistent message storage. Built with the MERN stack and powered by Socket.IO for seamless communication.

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🚀 Features

🔐 Authentication

• User Signup with username, email, and password
• User Login using email + password
• Passwords hashed using bcrypt
• Secure authentication with JWT tokens

💬 Real-Time Chat

• Instant messaging with Socket.IO
• Displays sender's username with each message
• Typing indicators (optional)
• Online users list (optional)
• All messages stored in MongoDB
• Previous messages load on login

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🧩 Tech Stack

🖥️ Frontend

• React.js + Vite
• Tailwind CSS
• Socket.IO Client

🖥️ Backend

• Node.js + Express.js
• MongoDB + Mongoose
• Socket.IO
• bcrypt
• jsonwebtoken (JWT)

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📁 Folder Structure