Payment_App

• 

  Signup page

• 

  Signin page

• 

  Dashboard page

• 

  Transaction page

• 

  Successful Transaction

I built PaymentApp because I’ve always been interested in how digital payments work behind the scenes—and I wanted to challenge myself to create a secure, full-stack payment platform from scratch. With so many apps handling sensitive data, I wanted to explore what it really takes to build something that users can trust.

I used the MERN stack for this project—MongoDB, Express, React, and Node.js—since it's a stack I'm comfortable with and it's great for building fast, responsive apps. On the backend, I implemented JWT for authentication and hashed passwords to keep user data secure. I also used Mongoose Transactions to make sure payments were handled safely and consistently, without any risk of data getting out of sync.

On the frontend, I focused on creating a smooth and simple user experience for signing up, logging in, and making payments. The API layer connected everything cleanly, allowing the frontend and backend to work together seamlessly.

One of the biggest challenges was making sure that payments were processed reliably even when multiple users were interacting at once—but working with MongoDB sessions and transactions helped me solve that.

Overall, this project taught me a lot about secure app development, managing complex data flows, and just how important good architecture is when building something people depend on.

Built With

• express.js
• html
• javascript
• mongodb
• mongoose
• node.js
• react
• tailwindcss