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How do you fetch data in Next.js Client Components (SWR, React Query, use)?

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01

Understand the problem

Client-side fetching when you need interactivity.

nextjsclient-fetchingswrreact-query
02

Attempt it yourself

Sketch your approach before reading the solution — that's what interviews test.

Nudge consolestandby

Stuck? Beam a request up — the console returns a conceptual nudge that guides your logic without spoiling the implementation.

03

Study the solution

In Client Components you fetch with libraries like SWR or React Query (caching, revalidation, mutations) or stream a Server Component promise into the use() hook. Prefer fetching in Server Components when possible; use client fetching for highly interactive/real-time data.

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04

Read the code

SWR for live client data
'use client';
import useSWR from 'swr';
const fetcher = (url: string) => fetch(url).then(r => r.json());

export function LivePrice({ id }: { id: string }) {
  const { data, error, isLoading } = useSWR('/api/price/' + id, fetcher,
    { refreshInterval: 5000 });          // poll every 5s, cached + deduped
  if (isLoading) return <Spinner />;
  return <span>{data.price}</span>;
}
05

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