What is Redux Thunk in TypeScript?

What is Redux Thunk in TypeScript?

Redux Thunk is a middleware that allows you to write action creators that return a function instead of an action. This is particularly useful for handling asynchronous logic in your Redux applications.

How do I set it up in a TypeScript project?

To set it up, first install Redux Thunk using npm or yarn. Then, apply the middleware when creating your Redux store. Here's a quick example:

import { createStore, applyMiddleware } from 'redux';
import thunk from 'redux-thunk';
import rootReducer from './reducers';

const store = createStore(rootReducer, applyMiddleware(thunk));

Can you show me an example of an async action creator?

Sure! Here's a simple example of an async action creator that fetches data:

import { Dispatch } from 'redux';

export const fetchData = () => {
  return async (dispatch: Dispatch) => {
    dispatch({ type: 'FETCH_DATA_REQUEST' });
    try {
      const response = await fetch('https://api.example.com/data');
      const data = await response.json();
      dispatch({ type: 'FETCH_DATA_SUCCESS', payload: data });
    } catch (error) {
      dispatch({ type: 'FETCH_DATA_FAILURE', error });
    }
  };
};

What are the benefits of using Redux Thunk?

The main benefits of using Redux Thunk include better handling of asynchronous actions, improved code organization, and the ability to dispatch multiple actions in a single function.