nextjs-best-practices

Use Server Components for data fetching and static UI, and Client Components for interactivity. The Next.js App Router defaults to Server Components, moving Client Components to the leaves of your component tree to optimize performance.

Data fetching best practices in Next.js App Router involve fetching data directly in Server Components to reduce client-side JavaScript. For client-side data requirements, extend the fetch API with caching and revalidation strategies or use Server Actions.

Optimize Next.js performance by using the built-in Image component for automatic optimization and running bundle analysis to minimize JavaScript. Rely on Server Components to reduce client bundle size and improve load times.

Yes, Server Actions in Next.js handle form submissions and data mutations directly on the server. This approach eliminates the need for separate API routes while maintaining progressive enhancement and type safety.

Common Next.js App Router anti-patterns include unnecessary usage of Client Components, creating manual API routes for simple mutations, and ignoring caching rules. Following established best practices avoids these pitfalls and ensures maintainability.

Metadata handling in Next.js App Router uses a dynamic, API-driven approach where you export a metadata object or generateMetadata function from layout and page files. This automatically injects meta tags for SEO.