nextjs-15

Structure Next.js 15 App Router projects by using specific file conventions like layout.tsx, page.tsx, loading.tsx, and error.tsx to organize server components and define clear routing hierarchies.

The best way to handle data fetching and mutation in Next.js 15 is by using Server Actions for data mutation and retrieval, alongside streaming and suspense strategies to improve data fetching performance and UX.

Organize protected and public routes in Next.js by applying middleware and route-group patterns, separating access control logic from your standard app directory conventions to secure specific application areas.

Yes, you can use streaming and suspense for data fetching in Next.js 15. This approach allows progressive rendering of server components, significantly improving perceived load times and overall user experience.

Use route-group patterns in your Next.js app directory when you need to organize complex folder structures, logically separating protected and public routes without affecting the underlying URL routing structure.