Next.js:使用TypeScript的next-redux-wrapper在getServerSideProps中调用Thunks？

基础概念

Next.js: 是一个流行的React框架，用于构建服务端渲染（SSR）和静态站点生成（SSG）的应用程序。

TypeScript: 是JavaScript的一个超集，添加了静态类型等特性，有助于提高代码的可维护性和可读性。

next-redux-wrapper: 是一个库，用于在Next.js应用中集成Redux，并提供了一些便捷的方法来处理服务端渲染时的状态管理。

Thunks: 是Redux中的一种中间件，允许异步操作。它们是函数，可以延迟Redux action的分发，直到异步操作完成。

类型与应用场景

类型: next-redux-wrapper支持TypeScript，因此可以享受到强类型带来的好处。Thunks可以是普通函数或返回Promise的函数。

应用场景: 当需要在服务端获取数据并在页面渲染前准备好状态时，可以使用getServerSideProps结合Redux Thunks。

示例代码

以下是如何在Next.js中使用TypeScript和next-redux-wrapper，在getServerSideProps中调用Thunks的示例：

// store.ts
import { configureStore, ThunkAction, Action } from '@reduxjs/toolkit';
import { createWrapper } from 'next-redux-wrapper';
import rootReducer from './rootReducer';

const makeStore = (context) => configureStore({
  reducer: rootReducer,
});

export const wrapper = createWrapper(makeStore, { debug: true });

// actions.ts
import axios from 'axios';
import { Dispatch } from 'redux';

export const FETCH_DATA_REQUEST = 'FETCH_DATA_REQUEST';
export const FETCH_DATA_SUCCESS = 'FETCH_DATA_SUCCESS';
export const FETCH_DATA_FAILURE = 'FETCH_DATA_FAILURE';

interface FetchDataRequestAction {
  type: typeof FETCH_DATA_REQUEST;
}

interface FetchDataSuccessAction {
  type: typeof FETCH_DATA_SUCCESS;
  payload: any;
}

interface FetchDataFailureAction {
  type: typeof FETCH_DATA_FAILURE;
  payload: string;
}

type DataActionTypes =
  | FetchDataRequestAction
  | FetchDataSuccessAction
  | FetchDataFailureAction;

export const fetchDataRequest = (): FetchDataRequestAction => ({
  type: FETCH_DATA_REQUEST,
});

export const fetchDataSuccess = (data: any): FetchDataSuccessAction => ({
  type: FETCH_DATA_SUCCESS,
  payload: data,
});

export const fetchDataFailure = (error: string): FetchDataFailureAction => ({
  type: FETCH_DATA_FAILURE,
  payload: error,
});

export const fetchData = (): ThunkAction<
  void,
  {},
  {},
  Action<string>
> => async (dispatch: Dispatch<DataActionTypes>) => {
  dispatch(fetchDataRequest());
  try {
    const response = await axios.get('/api/data');
    dispatch(fetchDataSuccess(response.data));
  } catch (error) {
    dispatch(fetchDataFailure(error.message));
  }
};

// pages/index.tsx
import React from 'react';
import { useSelector, useDispatch } from 'react-redux';
import { wrapper } from '../store';
import { fetchData } from '../actions';

const HomePage = () => {
  const data = useSelector(state => state.data);
  const dispatch = useDispatch();

  React.useEffect(() => {
    dispatch(fetchData());
  }, [dispatch]);

  return (
    <div>
      {/* Render your data here */}
    </div>
  );
};

export const getServerSideProps = wrapper.getServerSideProps(
  (store) => async () => {
    await store.dispatch(fetchData());
  }
);

export default HomePage;