How can I implement suspense in my React Query application?

How can I implement suspense in my React Query application?

You can use the Suspense component from React along with React Query's useQuery hook. This allows you to show a fallback UI while your data is loading.

Can you show me a code example?

Sure! Here's a simple example:

import React, { 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.title}</div>;
};

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

This will display 'Loading...' until the data is fetched.

What if I want to handle errors as well?

You can use the isError property from the useQuery hook to handle errors. Here's an updated example:

const DataComponent = () => {
  const { data, isError } = useQuery('dataKey', fetchData);
  if (isError) return <div>Error loading data!</div>;
  return <div>{data.title}</div>;
};