By the end of this tutorial you will have a working full-stack e-commerce application with: A Flask REST API (products, auth, orders, admin) A React + Vite frontend (shop, cart, account, orders, admin dashboard) bcrypt password hashing SQLite database (zero config, runs locally) A cart persisted in localStorage No prior Flask or React experience is assumed, but you should be comfortable running commands in a terminal. Table of Contents Project Structure Backend — Flask Install & bootstrap Database setup Auth routes Product routes Checkout & orders Admin routes Full backend code Frontend — React + Vite Create the project App shell Pages Full frontend code Running the app Security checklist before going live Project Structure ecommerce/ ├── app.py ← entire Flask backend ├── shop.db ← SQLite DB (auto-created on first run) └── frontend/ ├── index.html └── src/ ├── api.js ├── main.jsx ├── App.jsx └── pages/ ├── Home.jsx ├── Shop.jsx ├── Cart.jsx ├── Account.jsx ├── Orders.jsx └── Admin.jsx Backend — Flask…