File-Based Routing in Next.js

1. Introduction

Next.js is a powerful React framework that offers file-based routing. This allows developers to create routes based on the file structure, making it intuitive and efficient.

2. Key Concepts

• Pages: Each file in the `pages` directory corresponds to a route.
• Dynamic Routing: Create dynamic routes using square brackets.
• Nested Routes: Organize related routes by creating nested folders.

3. Setup

Begin with creating a new Next.js project. Run the following command:

npx create-next-app my-next-app

4. Routing

The routing in Next.js is handled automatically based on the files present in the `pages` directory. Each file represents a route:

pages/
├── index.js          // -> /
├── about.js          // -> /about
├── contact.js        // -> /contact
└── blog/
    └── index.js      // -> /blog

5. Dynamic Routes

To create dynamic routes, use square brackets in the filename:

pages/
└── blog/
    └── [id].js       // -> /blog/1, /blog/2, etc.

Inside `[id].js`, use the `useRouter` hook to access the dynamic segment:

import { useRouter } from 'next/router';

        const Post = () => {
            const router = useRouter();
            const { id } = router.query;

            return 
Post: {id}
;
        };

        export default Post;

6. Best Practices

• Organize your `pages` directory logically, grouping related files.
• Use dynamic routes wisely to avoid excessive complexity.
• Keep your components modular and reusable.

7. FAQ