Parallel, Sequential, and Streaming Data Fetching
Optimize App Router data loading by fetching in parallel, understanding when sequential fetching is needed, and streaming with Suspense.
Two Fetching Shapes
Server Components can fetch data sequentially (one waits for another) or in parallel (all at once). Choosing well dramatically affects load time.
Sequential Fetching
Sometimes one request depends on another result, forcing order. This creates a waterfall and is slower.
const user = await getUser(id);
const posts = await getPosts(user.teamId); // needs user firstAll lessons in this course
- Server-Side Data Fetching
- Caching & Revalidation
- Parallel, Sequential, and Streaming Data Fetching