How does React Cache API interact with React Server Components

1. Usage in RSCs:
- The React Cache API is designed to work with React Server Components. It allows caching the result of a data fetch or computation, which can improve performance by reducing the number of requests made to the server[1][2].

2. Cache Invalidation:
- When a server request is made, React will invalidate the cache for all memoized functions. This ensures that the cache is updated with the latest data each time a request is made[1].

3. Cache Preloading:
- The cache can be preloaded with data before the component is rendered. This is useful when you want to fetch data before the component is rendered, such as fetching user posts when the user data is fetched[1].

4. Client-Side Rendering:
- The React Cache API is not suitable for client-side rendering. It is designed to work with server-side rendering, where the component logic is executed exclusively on the server[2].

5. Comparison with React Query:
- Unlike React Query, the React Cache API is a built-in feature of React and not a library. It is designed to work with React Server Components and is not a replacement for React Query[1].

6. Example Usage:
- Here is an example of using the React Cache API to cache the result of a data fetch function. The `cache` function is used to memoize the result of the `getPost` function, so that when the function is called again with the same arguments, it returns the cached result instead of fetching the data again[1].

Example Code

jsx
import { cache } from 'react-cache';

const getPost = cache((id) => {
  // Fetch the post data from the server
  return fetch(`https://example.com/posts/${id}`)
    .then((response) => response.json())
    .then((data) => data);
});

function PostComponent({ postId }) {
  const post = getPost(postId);

  return (
    <div>
      <h1>{post.title}</h1>
      <p>{post.content}</p>
    </div>
  );
}

Conclusion