Stripe Payment System
Project Overview
This project represents the design and implementation of a secure online payment solution proposed for a local business in Kamloops. The goal was to create a modern, responsive, and user-friendly payment flow that meets security best practices while remaining simple for end users.
Business Context
The business needed a reliable way to accept online payments without exposing sensitive card data or building complex payment logic from scratch.
Key requirements included:
- Secure handling of card information
- Compliance with industry best practices
- Clear user feedback during payment processing
- A clean and professional interface to build user trust
Solution Design
I designed a client-server payment architecture using Stripe’s Payment Intents API and Stripe Elements.
The frontend securely collects card details, while the backend is responsible for creating payment intents and communicating with Stripe’s servers using environment-secured API keys.
System Architecture & Payment Flow
This architecture ensures security, responsiveness, and a smooth user experience:
- The frontend captures card details using Stripe Elements
- Card information is tokenized and never exposed to the backend
- The frontend sends a request to a Flask endpoint to create a payment intent
- The Flask backend communicates with Stripe using secure API keys
- Stripe returns a client secret used by the frontend to confirm the payment
Error Handling and Validation
- Validation for missing or incorrect input
- Clear error messaging for failed transactions
- Loading and success states to confirm progress and completion
Deployment & Security
- All sensitive keys are managed through environment variables
- The application is structured to be HTTPS-ready
- Stripe handles PCI compliance through tokenized card processing
System Design & Architecture
Impact and Outcomes
- Delivered a complete working payment demo
- Implemented a secure and compliant payment flow
- Created a modern and trustworthy user experience
- Prepared the application for real-world deployment