Chapter 15.5โ˜• 30 min read

Mini E-Commerce โ€” Cart, Auth, Checkout

The CAPSTONE project! Uses ALMOST EVERYTHING from the course. Products, cart, auth, checkout โ€” a complete e-commerce app.

01What We'll Build

What We'll Build

  • Mini e-commerce: product listing, cart, checkout flow
  • Auth: login/register (simulated, no real backend)
  • Cart: add/remove, quantity update, total calculation
  • Checkout: shipping form, order summary
  • Auth guard on cart and checkout routes

"E-commerce = online biryani order โ€” browse, cart mein dalo, order karo"

This is the CAPSTONE โ€” uses ALMOST EVERYTHING from the course.

02Features Overview

Features Overview

  • Product listing with search, filter by category, sort by price
  • Product detail page with images, description, add to cart
  • Cart page: quantity update, remove, total calculation
  • Auth: login/register forms, auth guard on cart/checkout
  • Checkout: shipping form, order summary, place order

"Sab features โ€” listing se lekar checkout tak"

03State Architecture

State Management Architecture

  • AuthService: currentUser signal, login/logout methods
  • CartService: items signal, add/update/remove/clear, total computed
  • ProductService: products signal, filtered computed, search signal

Three services = three departments โ€” auth, cart, products. All use signals โ€” no BehaviorSubject anywhere. Services communicate: Cart total in header badge via CartService.

04Chapter Contributions

What Each Chapter Contributes

  • Ch 2 (Components): ProductCard, CartItem, Header, Footer
  • Ch 3 (Binding): product display, cart quantity controls
  • Ch 5 (Services): Auth, Cart, Product services
  • Ch 6 (Routing): all routes, guards on cart/checkout
  • Ch 7 (HTTP): product fetching (simulated with JSON)
  • Ch 8 (Forms): login, register, checkout shipping form
  • Ch 10 (Signals): ALL state management
  • Ch 11 (Communication): service-based between header/cart
  • Ch 12 (Advanced): OnPush on everything

"Ye project = course ka summary โ€” har chapter ka use hua"

05Course Recap

What You've Learned โ€” Course Recap

80 chapters, 15 stages, 5 projects. From "what is Angular" to building a full e-commerce app.

You now know: Components, Services, Routing, HTTP, Forms, RxJS, Signals, Testing, SSR, Deploy

"Bhai course complete โ€” ab tum Angular developer ho!"

Next steps: build your OWN project, contribute to open source, apply for jobs.

"Portfolio banao, resume update karo, interview crack karo โ€” All the best! ๐Ÿš€"

Course Complete โ€” You Are an Angular Developer!

  • 80 chapters across 15 stages completed
  • 5 real projects: Biryani Shop, Job Board, Weather, Portfolio, E-Commerce
  • Skills: Components, Services, Routing, HTTP, Forms, RxJS, Signals, SSR
  • Built with Angular 18+ โ€” signals, standalone, @if/@for, lazy loading
  • Production-ready: testing, deployment, PWA, SSR, SEO, security
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