ProShop is a full-stack e-commerce teaching project that demonstrates how to build a production-style store with the MERN stack. The backend uses Node.js and Express to expose RESTful endpoints for products, users, orders, and payments, with MongoDB handling persistence and indexing. Authentication uses JWT and protected routes, while role-based guards separate shopper and admin flows such as product management and order fulfillment. The React frontend implements routing, global state, cart logic, checkout steps, reviews, search, and pagination so learners see a complete UX from browse to purchase. ...