私はReactをReduxとSagaと使用しています。 this.props.dispatch({type: "WORK_GET_DATA_BEGIN"});
でコンポーネントでSagaエフェクトを実行しようとすると、何も起こりません。実行されません。React Redux Sagaエフェクトが実行されない
実行すると、コンソールに「WorkGetDataBegin called」と記録されますが、何もありません。
index.js反応
import 'babel-polyfill';
import React from 'react';
import ReactDOM from "react-dom";
import {Provider} from "react-redux";
import ConfigureStore from "./ConfigureStore";
import App from "./App";
//Create the redux store with saga middleware
const store = ConfigureStore();
$(window).load(function(){StartReact()});
function StartReact()
{
ReactDOM.render(
<Provider store={store}>
<App/>
</Provider>,
document.getElementById('container')
);
}
ConfigureStore.js //ストア
import {createStore, applyMiddleware} from "redux";
import createSagaMiddleware from 'redux-saga'
import allReducers from "./AllReducers";
export default function ConfigureStore()
{
const sagaMiddleware = createSagaMiddleware();
const store = createStore(allReducers, applyMiddleware(sagaMiddleware));
return store;
}
App.js //コンポーネント
を初期化するための //エントリポイントimport React from "react";
import {bindActionCreators} from "redux";
import {connect} from "react-redux";
class App extends React.Component
{
constructor(props)
{
super(props);
}
componentDidMount()
{
console.log("componentDidMount");
this.props.dispatch({type: "WORK_GET_DATA_BEGIN"});
}
render()
{
return(
<div></div>
);
}
}
function mapStateToProps(state)
{
return {
}
}
function mapDispatchToProps(dispatch)
{
return bindActionCreators({}, dispatch);
}
export default connect(mapStateToProps)(App);
WorkGetData.js //佐賀効果
import { takeEvery, delay } from 'redux-saga';
import { put, call } from 'redux-saga/effects';
//The name of the actionType
const actionType = "WORK_GET_DATA";
// ******** Calls ********
const actionTypeBegin = actionType +"_BEGIN";
const actionTypeAbort = actionType +"_ABORT";
// ******** Responses ********
const actionTypeSuccess = actionType +"_SUCCESS";
const actionTypePending = actionType +"_PENDING";
const actionTypeFailure = actionType +"_FAILURE";
//Watcher saga for BEGIN
export function* WatchWorkGetDataBegin()
{
yield* takeEvery(actionTypeBegin, WorkGetDataBegin);
}
//Saga for BEGIN
export function* WorkGetDataBegin()
{
yield call(console.log,"WorkGetDataBegin called");
//Notify the UI that the action started
yield put({ type: actionTypePending });
yield call(delay, 5000);
const payload = yield call(WorkGetDataAsync);
yield put({ type: actionTypeSuccess, payload: payload });
}
//Async function for fetching data
function* WorkGetDataAsync()
{
console.warn("Implement AJAX Request");
return(
{
companyName: "User's Company",
salary: 500.7
}
);
}
これをミドルウェアで実行してから、ストアをエクスポートする前に実行します。middleware.run(saga。WatchWorkGetDataBegin);サガはあなたのサガファイルへの参照です。 –