How to globally handle error for all react queries at once and refetch?

In React Query, you can globally handle all request errors by configuring default settings and implement automatic retry mechanisms as needed. This is commonly set up when initializing a QueryClient instance.

Here is an example of how to configure global error handling and retry strategies in React Query:

javascript
import { QueryClient, QueryClientProvider } from 'react-query';

// Create a new QueryClient instance and configure default settings
const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      // Function triggered when a request fails
      onError: (error) => {
        console.error('Global error captured:', error);
        // You can add error reporting logic here, such as sending to a logging service
      },
      // Automatic retry configuration
      retry: (failureCount, error) => {
        // You can decide whether to retry based on error type or retry count
        // For example, you can simply set a specific number of retries
        const maxRetryAttempts = 3;
        // Retry only if failureCount is less than maxRetryAttempts
        return failureCount <= maxRetryAttempts;
      }
      // Other configurations...
    },
    // You can similarly configure onError and retry for mutations
  },
});

// Use the QueryClientProvider component to provide QueryClient in the application
function App() {
  return (
    <QueryClientProvider client={queryClient}>
      {/* Other parts of the application */}
    </QueryClientProvider>
  );
}

export default App;

In this example, the onError option within the queries object is a function that executes whenever a request managed by React Query encounters an error. This function receives a single parameter error, which is the error object thrown.

The retry option allows defining custom retry logic. It can be a boolean value indicating whether to retry the request, or a function that takes two parameters: failureCount (current failure count) and error (error object), returning a boolean to determine if retrying should occur. Within this function, you can implement more complex strategies, such as conditionally retrying based on error type or retry count.

This configuration is global and applies to all queries and mutations managed by React Query. However, you can also override these defaults for specific requests or mutations by setting onError and retry options directly when using the useQuery or useMutation hooks.