app.js

/**
 * app.js
 *
 * This is the entry file for the application, only setup and boilerplate
 * code.
 */

// Needed for redux-saga es6 generator support
import 'babel-polyfill';

// Load the favicon, the manifest.json file and the .htaccess file
import 'file?name=[name].[ext]!./favicon.ico';
import 'file?name=[name].[ext]!./manifest.json';
import 'file?name=[name].[ext]!./.htaccess';

// Import all the third party stuff
import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import { Router, browserHistory } from 'react-router';
import { syncHistoryWithStore } from 'react-router-redux';
import FontFaceObserver from 'fontfaceobserver';
import useScroll from 'scroll-behavior/lib/useScrollToTop';
import configureStore from './store';

// Observe loading of Open Sans (to remove open sans, remove the <link> tag in
// the index.html file and this observer)
import styles from './pages/App/styles.css';
const openSansObserver = new FontFaceObserver('Open Sans', {});

// When Open Sans is loaded, add a font-family using Open Sans to the body
openSansObserver.check().then(() => {
  document.body.classList.add(styles.fontLoaded);
}, () => {
  document.body.classList.remove(styles.fontLoaded);
});


// Create redux store with history
// this uses the singleton browserHistory provided by react-router
// Optionally, this could be changed to leverage a created history
// e.g. `const browserHistory = useRouterHistory(createBrowserHistory)();`
const initialState = {};
const store = configureStore(initialState, browserHistory);

// Sync history and store, as the react-router-redux reducer
// is under the non-default key ("routing"), selectLocationState
// must be provided for resolving how to retrieve the "route" in the state
let prevRoutingState;
const history = syncHistoryWithStore(browserHistory, store, {
  selectLocationState: (state) => {
    const routingState = state.get('route');

    if (!routingState.equals(prevRoutingState)) {
      prevRoutingState = routingState;
    }

    return prevRoutingState.toJS();
  },
});

// Set up the router, wrapping all Routes in the App component
import App from 'App';
import createRoutes from './routes';
const rootRoute = {
  component: App,
  childRoutes: createRoutes(store),
};

ReactDOM.render(
  <Provider store={store}>
    <Router history={history} routes={rootRoute} />
  </Provider>,
  document.getElementById('app')
);

// Install ServiceWorker and AppCache in the end since
// it's not most important operation and if main code fails,
// we do not want it installed
import { install } from 'offline-plugin/runtime';
install();