nextjs-best-practices

Next.js App Router data fetching leverages async functions in Server Components to fetch data directly from the database or APIs. This approach eliminates manual loading states and simplifies data flow compared to traditional API routes.

Optimize Next.js performance by using the built-in Image component for automatic resizing and lazy loading. Implement route-based bundle splitting through the App Router file conventions to reduce initial JavaScript payload.

Handle Next.js App Router metadata by exporting a metadata object or generatingMetadata function from your layout or page files. This approach automatically injects SEO tags into the document head without manual intervention.

Common Next.js Server Actions anti-patterns include using them for client-side validation only, fetching data that could be cached, and creating unnecessary Client Components. Keep Server Actions focused on mutations to leverage server-side execution.

Avoid Next.js caching for highly dynamic data that changes frequently per user request, such as real-time dashboards. Utilize dynamic rendering and opt out of fetch caching to ensure fresh content delivery without stale responses.