🛒 Simple Backend: E-Commerce SQL and API Lab

Practice e-commerce backend testing with DBeaver PostgreSQL schema, mock data, Next.js TypeScript API routes, endpoints and headers.

Learn database, API, and UI communication through a realistic shop that sells computers, clothing, and shoes.

What you can learn on this page

  • 🛒 E-Commerce Backend Map — This page is a safe browser-only e-commerce backend rehearsal. You learn SQL, API, and backend testing with computers, clothing, and shoes. A tester checks the same chain in real work: does the UI show the right products, does the API return the right JSON, an
  • 🗄️ Build SQL Database with DBeaver — DBeaver is a control desk for your database. Open an SQL Editor, create the shop schema, then add realistic product and order data. Use a local or training database. Do not practice on a live company database.
  • 🧩 Next.js TypeScript API in VS Code — The API is the door between the UI and SQL. The UI calls /api/products, the API runs SQL, and JSON comes back. This LearnQA.dev app runs on React + Vite. The Next.js API project below is a separate learning folder.
  • 🧪 API Test, Base URL, Endpoint, Header — Test the API before waiting for the UI. Check base URL, endpoint, method, headers, body, status, and JSON. See GET, POST, PATCH responses