💰 Paytmm Clone (Full-Stack)

A functional digital wallet application where users can securely sign up, manage a virtual wallet, and transfer funds to other users in real-time.

Live Demo: paytm-clone-ten-bice.vercel.app

🚀 Features

•User Authentication: Secure Sign Up and Sign In functionality using JWT.

• Dashboard: View your current wallet balance and search for other registered users.

•Peer-to-Peer Transfers: Send money to any user instantly using an atomic transaction system.

•Real-time Search: Filter through the user database to find recipients easily.

•Dynamic Balancing: Currently, new accounts are initialized with a random balance (using Math.random()) to simulate an existing account state.

🛠️Tech Stack

•Frontend: React.js, Tailwind CSS (for styling), Axios (for API calls).

•Backend: Node.js, Express.js.

•Database: MongoDB with Mongoose (modeling and transactions).

•Security: JSON Web Tokens (JWT) for session management and Zod for input validation.

🏁 Getting Started

Prerequisites

•Node.js (v16 or higher)

•MongoDB Atlas account or local MongoDB instance

Installation

1.Clone the repository

git clone https://github.com/yourusername/paytm-clone.git
cd paytm-clone

2.Backend Setup

cd backend
npm install

Create a .env file in the backend folder:

PORT=3000
MONGODB_URI=your_mongodb_connection_string
JWT_SECRET=your_secret_key

Start the server:

node index.js

3.Frontend Setup

cd ../frontend
npm install

Start the development server:

npm run dev

🔧 Application Logic

Wallet Initialization

In the current version, when a user signs up, the application assigns a starting balance using:

// Backend logic snippet
const balance = Math.random() * 10000;
await Account.create({
    userId,
    balance
});

Secure Transactions

To ensure money is never "lost" during a transfer, the app uses MongoDB Transactions. This ensures that if the deduction from the sender fails, the credit to the receiver is never executed (and vice-versa).

🗺️ Roadmap (Future Enhancements)

•[ ] Payment Gateway Integration: Connect with Razorpay or Stripe to add real money to the wallet.

•[ ] Transaction History: A dedicated page to view all past debits and credits.

•[ ] Profile Management: Allow users to update their details and upload profile pictures.

•[ ] Input Verification: Better error handling and toast notifications for failed transactions.

•[ ] QR Code Scanning: Generate and scan QR codes for even faster payments.

📄 License

Distributed under the MIT License. See LICENSE for more information.

MIT

Contact

Yash Sharma - https://x.com/buildwithyash- yashsharmaofficially@gmail.com

Project Link: https://github.com/yashsharmaofficially/paytm-clone