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React Query (now Known as Tanstack Query) is a library for managing, caching, and synchronizing server state in React applications. It provides a simple and efficient solution for fetching and caching data from APIs or other data sources, handling loading and error states, and synchronizing data across components.
Key features of React Query include:
- Data Fetching: React Query simplifies data fetching by providing hooks like
useQuery
anduseMutation
that handle fetching data from APIs. It abstracts away the complexities of managing asynchronous data fetching, allowing developers to focus on building user interfaces. - Caching: React Query includes a powerful caching mechanism that stores fetched data in memory and automatically updates it when needed. This helps to minimize unnecessary network requests and improve application performance.
- Background Data Fetching: React Query supports background data fetching, allowing developers to pre-fetch and cache data before it’s needed, such as when navigating to a new page or component. This helps to reduce loading times and provide a smoother user experience.
- Optimistic Updates: React Query enables optimistic updates by providing built-in support for optimistic UI rendering. This allows developers to update the UI optimistically before the server…