Handling Errors and Loading States in RTK Query
RTK Query provides built-in status flags to help you handle loading, success, and error states in your components without manually tracking them. These flags make it easy to manage UI feedback for API requests.
1.
isLoading: Indicates the request is in progress and no data is yet available.2.
isFetching: True when data is being refetched, even if cached data is available.3.
isSuccess: Set to true when data has been successfully fetched.4.
isError: Becomes true if the request fails for any reason.5.
error: Contains details about the error (status code, message, etc.).
In this example, isLoading and isFetching control the display of loading messages, while isError and error are used to show appropriate error feedback to users.
For mutations, you can use unwrap() to handle errors with standard try/catch syntax. This gives you fine control over how errors are displayed or logged.
Using these built-in flags, RTK Query simplifies UI state management for network operations, ensuring smooth and reliable user feedback for loading and error handling.