Getting Started with Next.js 15

Introduction

Next.js 15 brings exciting new features that make building web applications easier and more performant than ever. In this guide, we'll explore the key features and how to get started.

Key Features

React Server Components

Server Components allow you to render components on the server, reducing the JavaScript bundle size and improving initial page load performance.

// This component runs on the server
async function BlogPosts() {
  const posts = await fetchPosts();

  return (
    <ul>
      {posts.map(post => (
        <li key={post.id}>{post.title}</li>
      ))}
    </ul>
  );
}

App Router

The App Router provides a new way to structure your application with improved layouts, nested routing, and better data fetching patterns.

Streaming

With streaming, you can progressively render UI from the server, showing loading states while content is being fetched.

Getting Started

1. Create a new Next.js project:

npx create-next-app@latest my-app

2. Start the development server:

npm run dev

3. Open http://localhost:3000 to see your app.

Conclusion

Next.js 15 is a powerful framework for building modern web applications. With features like Server Components, the App Router, and streaming, you can create fast, scalable applications with ease.