nextjs-patterns

To decide between Server Components and Client Components in the Next.js App Router, use a decision tree evaluating data fetching needs and interactivity. Push the client boundary downward to keep interactive logic isolated while leveraging server-side data fetching for performance.

The best way to structure routing and middleware in Next.js 14/15+ involves applying file conventions, route groups, parallel routes, and intercepting routes. This architecture ensures clear routing paths and efficient request handling before route completion.

You should use ISR, SSR, or SSG for data fetching in Next.js based on your content freshness requirements. The framework provides strategies to optimize caching and rendering, balancing static generation with dynamic server-side rendering.

To handle form submissions using Server Actions in Next.js, implement server-side mutations directly within your App Router architecture. This pattern streamlines data updates without creating separate API endpoints, integrating seamlessly with form handling.

Common anti-patterns to avoid when building Next.js App Router architectures include misplacing the server/client component boundary and improper middleware usage. Reviewing practical examples helps prevent these structural pitfalls in Next.js 14/15+ projects.

Yes, the Next.js App Router supports route handlers and metadata optimization. It provides specific patterns for creating API endpoints and defining best-practice metadata to enhance SEO and application performance.