Paytm Clone - MERN Stack

A simple money transfer application built with React, Express.js, Node.js, and MongoDB.

Features

• User Authentication - Sign up and sign in with JWT tokens
• Dashboard - View account balance and user list
• Money Transfer - Send money to other users securely
• Real-time Balance - Check your current balance
• User Search - Find users to transfer money to

Tech Stack

Frontend

• React 19
• Vite
• Tailwind CSS
• Axios
• React Router

Backend

• Node.js
• Express.js
• MongoDB + Mongoose
• JWT Authentication
• bcrypt (password hashing)
• Zod (validation)

Quick Start

Backend Setup

cd backend
npm install
# Create .env file with:
# DBKey_URI=your_mongodb_connection_string
# JWT_KEY=your_jwt_secret
npm start

Frontend Setup

cd frontend
npm install
npm run dev

API Endpoints

• POST /api/v1/user/signup - Register new user
• POST /api/v1/user/signin - User login
• GET /api/v1/user/getUsers - Get all users
• GET /api/v1/account/getBalance - Check balance
• POST /api/v1/account/transfer - Transfer money

Project Structure

├── backend/
│   ├── db.js
│   ├── index.js
│   ├── middlewares/
│   └── routes/
└── frontend/
    ├── src/
    │   ├── components/
    │   └── Routes/
    └── package.json

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Built with ❤️ using MERN stack