#data-fetching

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Next.js in Practice · Part 04Oct 25, 202612 min read
Data Fetching and Streaming
How Server Components fetch data in Next.js 16, why params, searchParams, cookies() and headers() are promises, how fetch is deduplicated per request, how loading.tsx and Suspense stream the page, and how to avoid waterfalls and hand promises to Client Components with use().
Next.js in Practice · Part 26Oct 25, 202617 min read
TanStack Query - Server Prefetch and Hydration
A complete, copy-pasteable TanStack Query v5 setup for the Next.js 16.4.3 App Router - per-request clients, server prefetch with streamed pending queries, HydrationBoundary, useSuspenseQuery, mutations that invalidate both caches, Cache Components, and the pitfalls.
Next.js in Practice · Part 40Oct 25, 202615 min read
Recipes - Data, Caching and Revalidation
Fixes for the data and caching problems Next.js 16 developers hit most, from stale data after a mutation to the blocking-route error, each traced to the source line that causes it.

Data Fetching and Streaming