Getting Started with Next.js App Router

The App Router in Next.js 13+ represents a fundamental shift in how we build React applications. It brings server components, nested layouts, and streaming to the forefront.

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What changed?

The old Pages Router served us well, but the new App Router enables React Server Components by default, allowing you to fetch data directly in your components without useEffect or getServerSideProps.

Getting started

Create a new Next.js app and start exploring the app/ directory. Each folder becomes a route segment, and page.tsx files define the UI.

Conclusion

The App Router is the future of Next.js development. Once you get comfortable with the mental model, it's a joy to work with. Start small, experiment, and gradually migrate your existing code.