MyCrypto/common/index.jsx

import React from 'react';
import { render } from 'react-dom';
import { syncHistoryWithStore, routerMiddleware } from 'react-router-redux';
import { composeWithDevTools } from 'redux-devtools-extension';
import Perf from 'react-addons-perf';
import { createStore, applyMiddleware } from 'redux';
import RootReducer from './reducers';
import { Root } from 'components';
import { Routing, history } from './routing';
import { createLogger } from 'redux-logger';
import createSagaMiddleware from 'redux-saga';
import notificationsSaga from './sagas/notifications';
import ensSaga from './sagas/ens';

// application styles
import 'assets/styles/etherwallet-master.less';

const sagaMiddleware = createSagaMiddleware();

const configureStore = () => {
    let sagaApplied = applyMiddleware(sagaMiddleware);
    let store;
    let middleware;

    if (process.env.NODE_ENV !== 'production') {
        window.Perf = Perf;
        sagaApplied = composeWithDevTools(sagaApplied);
        const logger = createLogger({
            collapsed: true
        });
        middleware = applyMiddleware(routerMiddleware(history), logger);
    } else {
        middleware = applyMiddleware(routerMiddleware(history));
    }

    store = createStore(RootReducer, sagaApplied, middleware);
    sagaMiddleware.run(notificationsSaga);
    sagaMiddleware.run(ensSaga);
    return store;
};

const renderRoot = Root => {
    let store = configureStore();
    let syncedHistory = syncHistoryWithStore(history, store);
    render(
        <Root key={Math.random()} routes={Routing} history={syncedHistory} store={store} />,
        document.getElementById('app')
    );
};

renderRoot(Root);

if (module.hot) {
    module.hot.accept();
}