PayP: Payment Platform API

This project is a payment architecture based on UPI architecture, designed to accept payments and send them. It includes core features such as secure user accounts, balance management, transaction logs, and a lockout mechanism for failed login attempts. It provides a great alternative to Razorpay or Stripe for development since it completely works like UPI. Here is the complete API Endpoint testing: Postman Results. Complete tutorial on how to use it is on: Article. Swagger docs is here: Swagger Link

Features

1. User Management:

   • User registration, login, and secure payment PIN setup.
   • Password reset with account lockout after 5 failed attempts.
   • Pin reset and account lockout after 5 failed attempts.

2. Payment Transactions:

   • Dynamic balance management.
   • Viewable transaction history.
   • Transfer and receive payment.

3. Security:

   • JWT-based user authentication.
   • Password hashing with bcrypt.
   • 30 mins lockout mechanism for security.

4. Database:

   • PostgreSQL used with Supabase configured using Sequelize ORM.

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Installation

1. Clone the repository

git clone https://github.com/AyishikD/PayP
cd PayP

2. Install dependencies

npm install

3. Set up environment variables

Create a .env file in the project root and configure the following:

DB_URL=your_postgresql_database_url
JWT_SECRET=your_jwt_secret

4. Run the project

Development

npm start

Production

node server.js

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Changelog

v5.0.0 (January 2025)

• New Features:

  • Transaction Logs: Added route to retrieve transaction logs for users (/payment/logs/{userId}).
  • Project Payment: Added a route for project payment processing (/payment/projectpay).
  • Product Management: Added routes for adding a product and processing payments for products (/payment/add, /payment/pay/{uuid}).
  • Swagger Docs: Enhanced Swagger documentation for better understanding and testing of new routes.

• Bug Fixes:

  • Fixed issues with account lockout after multiple failed attempts.
  • Optimized the transaction history retrieval functionality for better performance.

v1.0.0 (December 2024)

• Initial Release:
  • User registration, login, and payment PIN setup.
  • Payment transactions and balance management.
  • JWT authentication, bcrypt password hashing.
  • PostgreSQL database setup with Sequelize ORM.

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Development Notes

Dependencies

• Express: Web framework for Node.js.
• Sequelize: ORM for PostgreSQL.
• bcrypt: Password hashing.
• JWT: Secure user authentication.

Scripts

• node server.js: Starts the server.

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Deployment

Deployed on render.

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License

This project is licensed under the Apache 2.0 License.

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Contributions are most welcome.