E-Commerce Platform
Catalog, cart, checkout, orders, admin — the full loop.
Build an e-commerce app with the moving parts that actually ship: a catalog, a cart, a checkout that survives page refreshes, an admin area, and an order lifecycle that can recover from failed payments.
What you'll build
- Product catalog with categories and variants
- Persistent cart that survives sign-in
- Checkout with address + payment
- Order lifecycle: created → paid → shipped → delivered
- Admin dashboard for products and orders
- Inventory holds during checkout
What you'll learn
- Model a catalog you can extend without rewriting
- Design a checkout flow that handles retries cleanly
- Coordinate inventory, payment, and order state safely
- Build a usable admin without leaking it to customers
Key flows
The end-to-end paths your data takes through the system.
Checkout lifecycle
From 'Add to cart' to 'Order placed'.
Inventory hold
How stock is reserved during checkout to avoid overselling.
Build steps
A step-by-step path. Each milestone leaves you with a working slice.
- 1
Catalog & products
Schema, listing, detail pages, variants.
- 2
Cart
Anonymous + authenticated carts, merging on sign-in.
- 3
Checkout
Address, payment, idempotent confirmation.
- 4
Orders
State machine, webhook handler, customer-facing order page.
- 5
Admin
Protected routes, product CRUD, order overview.
- 6
Inventory
Holds during checkout, release on cancel/timeout.
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Read & study before you build
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