What is React Query Suspense and how does it work?

What is React Query Suspense and how does it work?

React Query Suspense is a feature that allows you to handle loading states in your React applications more elegantly. It integrates with React's Suspense to show fallback UI while data is being fetched.

Can you give me an example of how to implement it?

Sure! You can wrap your component with <Suspense> and use useQuery from React Query. Here's a simple example:

import { Suspense } from 'react';
import { useQuery } from 'react-query';

const fetchData = async () => {
  const response = await fetch('https://api.example.com/data');
  return response.json();
};

const DataComponent = () => {
  const { data } = useQuery('dataKey', fetchData);
  return <div>{data}</div>;
};

const App = () => (
  <Suspense fallback={<div>Loading...</div>}>
    <DataComponent />
  </Suspense>
);

This will show 'Loading...' while the data is being fetched.

What are the benefits of using Suspense with React Query?

Using Suspense with React Query simplifies your loading state management, reduces boilerplate code, and enhances user experience by providing a seamless loading UI.

Are there any limitations I should be aware of?

Yes, one limitation is that Suspense only works with components that are directly rendered within a <Suspense> boundary. Also, it may not be compatible with all data-fetching scenarios, especially if you need more granular control over loading states.