Common mistakes with the Next.js App Router and how to fix them

What this post added

This post details common mistakes when building with the Next.js App Router, including incorrect usage of Route Handlers with Server Components, static vs. dynamic Route Handlers, using Server Actions with Client Components, proper placement of Suspense boundaries, accessing the incoming request object in Server Components, and correctly integrating Context Providers with Client Components. It emphasizes direct logic calls over network hops for Server Components, explains Route Handler caching behavior, promotes Server Actions for client-side data mutations, clarifies Suspense boundary placement, highlights specific functions for accessing request details in Server Components, and guides on creating Client Component providers for context consumption.