Integrating RTK Query with Server-Side Rendering (SSR)
RTK Query supports Server-Side Rendering (SSR) by allowing you to prefetch data on the server before rendering the page. This ensures that the client receives fully populated state and avoids redundant refetching on load.
1. Create and Configure the Store on the Server: Use
configureStorewith yourapislice and other reducers.2. Prefetch Required Data Using
api.endpoints.<endpoint>.initiate(): Dispatch query initiations on the server to populate the store with data.3. Wait for All Queries to Resolve: Use
Promise.allorstore.dispatch(api.util.getRunningQueriesThunk())to ensure all requests complete before rendering.4. Serialize and Hydrate the Store State: Send the preloaded Redux state to the client and hydrate it using
hydrateor standard Redux store initialization.
In this example, getServerSideProps prefetches the data using getUsers before rendering. When the client loads, it reuses the hydrated cache and avoids refetching.
- Faster Initial Page Load: Data is available immediately when the page is rendered.
- SEO-Friendly Rendering: Search engines can crawl pages with pre-fetched data.
- Reduced Client Fetching: Avoids redundant API requests on the client side.
RTK Query’s SSR support makes it easy to combine the power of Redux with server-rendered applications like Next.js, providing both performance and SEO benefits.