SWR is a React Hooks library for data fetching. SWR first returns the data from cache (stale), then sends the fetch request (revalidate), and finally comes with the up-to-date data again.
Fast and lightweight data fetching
Improves application speed and responsiveness.
Built-in cache and request deduplication
Reduces unnecessary network requests and optimizes performance.
Real-time experience
Allows components to receive constant updates and ensures the UI is always current.
SSR / ISR / SSG support
Facilitates server-side rendering and static site generation for better SEO and performance.
SWR, standing for stale-while-revalidate, is a React Hooks library designed to manage data fetching in a way that ensures quick and efficient UI updates. It first retrieves data from cache (stale) and then proceeds to fetch the latest data (revalidate), providing a seamless experience. With just a simple line of code, developers can implement advanced data fetching features that enhance user interaction and application performance.
SWR is compatible with TypeScript and React Native and supports various fetching functions, including native fetch and Axios. It includes features such as polling, local mutation (optimistic UI), and error handling.
Building applications that require real-time data updates.
Creating interactive UIs that need fast data fetching without blocking the user experience.
Implementing server-side rendering for better SEO and page load performance.
SWR stands for stale-while-revalidate, a caching strategy.
Yes, SWR is fully compatible with TypeScript.
SWR is ideal for applications that require quick data updates, such as dashboards, social media feeds, and e-commerce platforms.
