SWR Has a Free API That Makes Data Fetching in React Effortless
javascript
dev.to
SWR (stale-while-revalidate) is Vercel's data-fetching library for React. Its API is deceptively simple — but under the hood, it handles caching, revalidation, pagination, and optimistic updates. Basic Usage: One Hook, Full Cache import useSWR from "swr"; const fetcher = (url: string) => fetch(url).then(r => r.json()); function Profile() { const { data, error, isLoading, isValidating, mutate } = useSWR( "/api/user", fetcher ); if (isLoading) return Spinner />; i