如何等待两个操作分派另一个操作

我正在寻找一种方法,一旦我知道已经发送了多个操作,就可以发送一个操作。我知道现在可以通过存储一些变量来实现这一点。但是有没有更好的方法来做这件事(传奇,发现)等。我试图通过他们的文件,但不知道是否可以用于这个目的。

例如,在下面的代码中,当我知道已经分派了2个必需的操作时,我想在中间件中分派一些操作

import React, { Component } from 'react';
import ReactDOM from 'react-dom'
import {createStore, applyMiddleware} from 'redux'
import {Provider} from 'react-redux'

const dummyReducer = (state=null,action) => {
    return state
}

const defaultAction1 = { type: 'DEFAULT_ACTION1'}
const requiredAction1 = { type: 'REQUIRED_ACTION1'}
const requiredAction2 = { type: 'REQUIRED_ACTION2'}

const middle = (store) => (next) => (action) => {
    if(action.type === 'REQUIRED_ACTION1')
        console.log('Required actions satisfied')
    next(action)
}

const store = createStore(dummyReducer, applyMiddleware(middle))

store.dispatch(defaultAction1)

//Dispatch an action after 2 secs
setTimeout(store.dispatch.bind(null,requiredAction1),2000)
setTimeout(store.dispatch.bind(null,requiredAction2),4000)

class DummyComponent extends Component{
    render(){
        return(<h1> nothing to see here </h1>)
    }
}

ReactDOM.render(<Provider store={store}> 
                    <DummyComponent />
                </Provider>, 
                document.getElementById('root')
);