Fetch Data and Handle Mutations with React Router v6 Loaders and Actions
Skip component-level useEffect fetching. React Router v6.4+ route loaders and actions load data before render and process form mutations through the router.
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Skip component-level useEffect fetching. React Router v6.4+ route loaders and actions load data before render and process form mutations through the router.
Goal Return data from a Qwik City route loader and consume it in a client component with useLoaderData without re-running the loader. Constraint Loader return values are serialized into the rendered HTML during SSR or SSG. Only JSON-serializable values survive that boundary. Functions, class instances, database connections, open streams, and similar server-o