What are the best practices for using Redux Thunks?

What are the best practices for using Redux Thunks?

When using Redux Thunks, it's important to keep your thunks focused on a single task, avoid side effects in your reducers, and handle errors gracefully.

Can you give an example of a well-structured thunk?

Sure! A well-structured thunk might look like this:

const fetchUser = (userId) => {
  return async (dispatch) => {
    dispatch({ type: 'FETCH_USER_REQUEST' });
    try {
      const response = await api.getUser(userId);
      dispatch({ type: 'FETCH_USER_SUCCESS', payload: response.data });
    } catch (error) {
      dispatch({ type: 'FETCH_USER_FAILURE', error });
    }
  };
};

How do I handle errors in my thunks?

You can handle errors by using try-catch blocks within your thunk. Dispatch an error action in the catch block to update your state accordingly.

Are there any performance considerations I should be aware of?

Yes, avoid dispatching too many actions in quick succession, as it can lead to performance issues. Batch actions when possible.