Build a Shopping Cart in React: Context API Explained Through Real Code
🔥 Learn React Context API by building a REAL Shopping Cart Project from Scratch!
If Context API has always felt confusing, this project will finally make it click.
In this 42-minute hands-on React tutorial, you'll build a complete shopping cart application using React Context API, React Hooks, and data from a real API.
By the end of this video you'll know:
✅ Why Context API exists
✅ How to eliminate prop drilling
✅ How to create and use a Context Provider
✅ How state can be shared across multiple components
✅ How to build a real-world shopping cart without Redux
🚀 Project Features
• Fetch products from FakeStoreAPI
• Add items to cart
• Remove items from cart
• Dynamic cart counter in the navbar
• Automatically calculated cart totals
• Clean component structure
• Optional Tailwind CSS styling
This isn't a toy example.
You'll see how Context API is actually used in real React applications and understand the exact problem it solves.
⏱️ Chapters
0:00 Intro
0:12 Application Demo
0:50 Project Creation using Vite
2:58 Calling the FakeStore API
4:53 Creating Component Files
6:26 Adding Components in App.jsx
7:21 Understanding the Error
9:13 ProductList Component
11:55 ProductCard Component
14:33 The Problem Context API Solves
14:59 Creating CartContext ⭐
22:18 addToCart Function
25:09 removeFromCart Function
25:59 getCartCount Function
26:50 getCartTotal Function
28:20 Wiring Everything Together
32:00 Cart Component
36:28 Displaying the Cart
38:38 Tailwind CSS Styling (Optional)
41:25 Fix for toFixed() Rendering Issue
41:56 Outro
💻 Tech Stack
React
Vite
Context API
JavaScript
Tailwind CSS
FakeStoreAPI
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