Next.js Course - Table of Contents

Course Overview

A comprehensive guide to Next.js covering routing, components, error handling, and advanced features.

Table of Contents

Core Concepts

• 02. React Server Components (RSC)
• 03. Routing Basics

Routing System

• 04. Nested Routes
• 05. Dynamic Routes
• 06. Nested Dynamic Routes
• 07. Catch All Routes

Error Handling & Special Pages

• 08. Custom 404 Page
• 18-19-20-21-22-23. Error Handling

Advanced Routing Features

• 09. Private Folder Grouping
• 10-11. Layout System

Metadata & SEO

• 12-13. Metadata Configuration

Navigation

• 14-15-16-17. Navigation Components

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Quick Navigation

Topic	File	Description
RSC	02.RSC.md	React Server Components basics
Routing	03.RoutingBasic.md	File-based routing fundamentals
Nested Routes	04.NestedRoutes.md	Multi-level URL structures
Dynamic Routes	05.DynamicRoutes.md	Variable URL parameters
Nested Dynamic	06.NestedDR.md	Complex dynamic routing
Catch All	07.CatchAllRoute.md	Flexible route matching
Custom 404	08.Custom404Page.md	Custom error pages
Private Folders	09.PrivateFolder_Grouping.md	Code organization
Layouts	1011Layout.md	Shared UI components
Metadata	1213.Metadata.md	SEO and meta tags
Navigation	14_15_16_17.Navigation.md	Navigation components
Error Handling	18_19_20_21 22_23.Error.md	Error boundaries and recovery

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1. Next.js 15 Notes - Introduction & Overview

What is Next.js?

Next.js is a React framework for building full-stack web applications. While React alone is just a library for building user interfaces (handling only the view layer), Next.js extends React's capabilities to create production-ready applications.

Key Differences: React vs Next.js

React (Library):

• Handles only the view layer/user interfaces
• Requires additional decisions and packages for:
  • Routing
  • Data fetching
  • Other production features

Next.js (Framework):

• Uses React for UI building
• Provides additional built-in features for production applications
• Has established opinions and conventions
• No need for additional packages - everything included

Why Learn Next.js?

Next.js simplifies the process of building production-ready web applications by providing essential features out of the box.

Key Features of Next.js

1. File-Based Routing

• No need to install/configure third-party routing packages
• Simply create files and routes are automatically generated
• Eliminates traditional React routing complexity

2. API Routes (Full-Stack Framework)

• Build both frontend React components AND backend APIs
• Seamless integration between frontend and backend code
• Single application for complete full-stack development

3. Rendering Flexibility

• Supports both server-side rendering (SSR)
• Supports client-side rendering (CSR)
• Improves performance when implemented properly
• Better search engine optimization (SEO)

4. Streamlined Data Fetching

• Built-in async/await support in React components
• Makes data fetching straightforward and efficient
• Simplified data management

5. Flexible Styling Options

• CSS Modules support
• Tailwind CSS integration
• CSS-in-JS solutions
• Multiple approaches to match preferences

6. Built-in Optimizations

• Image optimization
• Font optimization
• Script optimization
• Enhances Core Web Vitals
• Improves overall user experience

7. Optimized Build System

• Development environment optimized
• Production build system included
• Focus on coding instead of complex configurations
• No additional build tool setup required

Prerequisites

Required Knowledge:

• HTML, CSS, and JavaScript fundamentals
• React fundamentals (since Next.js is a React framework)

Essential React Concepts:

• Function components
• Props
• State management
• JSX syntax
• React Hooks

Note on React Knowledge:

• Don't need to be an expert
• Should be familiar with core concepts
• Solid foundation in React fundamentals is essential

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NextJS from official Docs

📘 Next.js (App Router) - Complete Learning Path

This guide will help you cover all important topics and scenarios in Next.js using the App Router, including both Client and Server Components.

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🚀 Phase 1: Getting Started (Foundation)

1. Introduction to Next.js
2. Routing: App Router Overview
3. Project Structure
4. Layouts
5. Pages
6. Nested Routes
7. Linking and Navigation

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⚙️ Phase 2: Server vs Client Components

8. Rendering Overview
9. Server Components
10. Client Components
11. When to Use Client Components
12. Shared Components Between Server and Client

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🔌 Phase 3: Data Fetching

13. Data Fetching Overview
14. Fetching Data on the Server (Server Components)
15. Loading UI & Suspense
16. Error Handling
17. Using Third-Party APIs

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🌐 Phase 4: Advanced Routing Features

18. Dynamic Routes
19. Catch-all Routes
20. Route Groups
21. Intercepting Routes
22. Parallel Routes
23. Modals with Routes

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🧠 Phase 5: Forms, Actions & Mutations

24. Handling Forms
25. Server Actions (form-based mutations)
26. Client-side Forms

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🔒 Phase 6: Authentication & Authorization

27. Authentication Patterns
28. Using NextAuth.js
29. Protecting Routes

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📦 Phase 7: API Routes and Middleware

30. API Routes (Pages Router only)
31. Middleware

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⚡ Phase 8: Optimization & Performance

32. Streaming
33. Image Optimization
34. Font Optimization
35. Caching
36. Preloading Data

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🧪 Phase 9: Testing & Deployment

37. Testing
38. Deployment on Vercel
39. Environment Variables

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🔁 Bonus: Full Examples & Recipes

• Next.js App Router Examples
• Client Component Example
• Server Component Example

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✅ Final Tip

Go through the phases in order and build small projects along the way (e.g., dashboard, blog, auth app) to reinforce each concept.

Happy learning! 🚀