Getting Started with Next.js

Next.js is a powerful React framework that makes it easy to build production-ready applications. In this guide, we'll explore the core concepts and build our first application.

What is Next.js?

Next.js is a React framework that provides a lot of useful features out of the box:

• File-based routing: Automatically create routes based on your file structure
• Server-side rendering: Generate pages on the server for better performance
• API routes: Build backend endpoints without leaving your project
• Static generation: Pre-build pages at deploy time

Installation

To get started, create a new Next.js project:

npx create-next-app@latest my-app
cd my-app
npm run dev

File Structure

A typical Next.js project looks like this:

my-app/
├── app/
│   ├── layout.tsx
│   ├── page.tsx
│   └── about/
│       └── page.tsx
├── public/
├── package.json
└── tsconfig.json

Pages and Routing

Pages are created in the app directory. Each file becomes a route:

• app/page.tsx → /
• app/about/page.tsx → /about
• app/blog/[slug]/page.tsx → /blog/my-post

App Router Basics

The App Router (Next.js 13+) uses a different structure than Pages Router:

// app/page.tsx
export default function Home() {
  return <h1>Welcome to Next.js!</h1>;
}

Key Takeaways

• Next.js handles routing automatically
• Use Server Components for better performance
• API routes make building backends simple
• Deploy to Vercel with a single click

Start building with Next.js today and experience the power of full-stack React development!