React第三方组件5(状态管理之Redux的使用⑤异步操作)

npm i -S redux-thunk

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

const middleware = [thunk];

const store = createStore(reducer, applyMiddleware(...middleware));

export default store;

import apiRequestAsync from '../../../../public/js/apiRequestAsync';

export const postList = () => async (dispatch) => {
    let todoList = await apiRequestAsync.post('todoList');
    dispatch({type: 'POST_LIST', list: todoList.list});
};

case 'POST_LIST':
    list = action.list;
    return {list};

export default (state = {
    list: []
}, action) => {
    let list = state.list;
    switch (action.type) {
        case 'POST_LIST':
            list = action.list;
            return {list};
        case 'ADD':
            if (!action.title) {
                alert('不能为空');
                return state;
            }
            list.push({id: state.list.length + 1, title: action.title, status: 1});
            return {list};
        case 'EDIT':
            let {id, status} = action.obj;
            list.find(data => data.id === id).status = status;
            return {list};
        default:
            return state;
    }
};

import React from 'react';
import {Provider, connect} from 'react-redux';
import store from './store'
import List from './List'
import {postList} from './action'

class Index extends React.Component {
    componentDidMount() {
        this.props.dispatch(postList());
    }

    render() {
        let props = this.props;
        return (
            <div className="todoList">
                <input type="text" ref="todoInput"/>
                <button onClick={() => this.props.dispatch({type: 'ADD', title: this.refs['todoInput'].value})}>添加
                </button>
                <div className="cont">
                    <div className="box">
                        全部
                        <List type={0} {...props}/>
                    </div>
                    <div className="box">
                        未删除
                        <List type={1} {...props}/>
                    </div>
                    <div className="box">
                        已删除
                        <List type={2} {...props}/>
                    </div>
                </div>
            </div>
        );
    }
}

const mapStateToProps = state => ({storeState: state});

const Main = connect(
    mapStateToProps
)(Index);

export default () =>
    <Provider store={store}>
        <Main/>
    </Provider>
;