How do I handle asynchronous errors in Redux?

How do I handle asynchronous errors in Redux?

You can handle asynchronous errors in Redux by using middleware like Redux Thunk or Redux Saga. These allow you to manage side effects and catch errors.

Can you give me an example of using Redux Thunk for error handling?

Sure! In your action creator, you can dispatch an error action if the API call fails. Here's a simple example:

export const fetchData = () => async (dispatch) => {
  try {
    const response = await fetch('api/data');
    const data = await response.json();
    dispatch({ type: 'FETCH_SUCCESS', payload: data });
  } catch (error) {
    dispatch({ type: 'FETCH_ERROR', payload: error.message });
  }
};

What should I do with the error in my reducer?

In your reducer, you can handle the 'FETCH_ERROR' action by updating the state to include the error message. This way, you can display it in your UI.

Is there a way to centralize error handling in Redux?

Yes, you can create a centralized error handling middleware that catches errors from all actions and dispatches a common error action.