Refactoring a complex React feature with React Query for data fetching - optimizing loading states
I'm having trouble with I'm a bit lost with I'm reviewing some code and I tried several approaches but none seem to work. Currently developing a new feature in our React application that relies heavily on data fetching for multiple components. The previous implementation utilized local state management, but we're looking to refactor it with React Query to streamline data handling and improve performance. One specific area I'm focusing on is the loading states across different components that depend on the same API call. In our current setup, a loading spinner appears in each component while waiting for the data. It feels redundant and negatively impacts user experience. Given that we are fetching data from the same endpoint, I'd like to consolidate the loading state to show a single spinner while multiple components are waiting for the same data to load. Here’s an example of how I set up the hooks initially: ```javascript import { useQuery } from 'react-query'; const fetchData = async () => { const response = await fetch('https://api.example.com/data'); if (!response.ok) throw new Error('Network response was not ok'); return response.json(); }; const ComponentA = () => { const { data, isLoading, error } = useQuery('dataKey', fetchData); if (isLoading) return <LoadingSpinner />; if (error) return <ErrorMessage />; return <div>{data.name}</div>; }; const ComponentB = () => { const { data, isLoading, error } = useQuery('dataKey', fetchData); if (isLoading) return <LoadingSpinner />; if (error) return <ErrorMessage />; return <div>{data.description}</div>; }; ``` This setup results in multiple loading spinners appearing on the page, which isn’t ideal. My goal is to harness the power of React Query to ensure that when one of the components initiates the fetch, the others can react to that loading state without making separate requests. I’m considering implementing a global loading state but am unsure how best to achieve that using React Query’s capabilities. Should I leverage the `useIsFetching` hook to manage a centralized loading state? Or is there a better pattern to follow within React Query that allows for shared loading indicators? I’d appreciate any insights or patterns that could help improve our implementation while keeping our code maintainable and clean. If anyone has tackled this type of scenario, your guidance would be invaluable. This is part of a larger API I'm building. What's the best practice here? I'm working on a mobile app that needs to handle this. Is this even possible? I'm working on a desktop app that needs to handle this.