Build React applications using React Router's data mode with createBrowserRouter and RouterProvider. Use when working with route objects, loaders, actions, Form, useFetcher, or pending/optimistic UI without the Vite plugin.

React Router Data Mode Data mode uses createBrowserRouter and RouterProvider to enable data loading, actions, and pending UI without the framework's Vite plugin. This is ideal for existing React applications that want to add data loading and mutation capabilities. When to Apply Using createBrowserRouter with route objects Loading data with loader property on routes Handling mutations with action property Navigating with <Link , <NavLink , <Form , redirect , and useNavigate Implementing pending/loading UI states with useNavigation Using useFetcher for mutations without navigation References Load the relevant reference for detailed guidance on the specific API/concept: Reference Use When references/routing.md Configuring routes, nested routes, layout references/route object.md Understanding route object properties references/data loading.md Loading data with loaders references/actions.md Handling forms, mutations, validation references/navigation.md Links, programmatic navigation, redirects references/pending ui.md Loading states, optimistic UI references/ssr.md Server side rendering with data mode Critical Patterns These are the most important patterns to follow. Load the relevant reference for full details. Basic Router Setup Forms & Mutations Search forms use <Form method="get" , NOT onSubmit with setSearchParams : Inline mutations use useFetcher , NOT <Form (which causes page navigation): See references/actions.md for complete patterns. Optimistic UI Pattern Use fetcher.formData to show expected results immediately: See references/pending ui.md for complete patterns. Further Documentation If anything related to React Router is not covered in these references, you can search the official documentation: https://reactrouter.com/docs

react-router-data-mode