React Query
React Query is a powerful data-fetching and state management library for React applications that simplifies server-state synchronization. It provides hooks for fetching, caching, synchronizing, and updating server data with built-in features like caching, background updates, and error handling. It eliminates the need for manual state management of asynchronous data, making it easier to build performant and responsive UIs.
Developers should use React Query when building React applications that need to fetch, cache, and manage server-side data efficiently, such as in dashboards, e-commerce sites, or real-time apps. It's particularly useful for handling complex data dependencies, pagination, and optimistic updates, reducing boilerplate code and improving user experience with automatic background refetching and stale-while-revalidate strategies.