server.js

require('babel-register');
const express = require('express');
const React = require('react');
const ReactDOMServer = require('react-dom/server');
const ReactRouter = require('react-router');
const match = ReactRouter.match;
const RouterContext = ReactRouter.RouterContext;
const ReactRedux = require('react-redux');
const Provider = ReactRedux.Provider;
const Store = require('./redux/Store.jsx');
const store = Store.store;
const _ = require('lodash');
const fs = require('fs');
const port = process.env.PORT || 8080;
const baseTemplate = fs.readFileSync('./index.html');
const template = _.template(baseTemplate);
const App = require('./components/App.jsx');
const Routes = App.Routes;

const app = express();

app.use('/public', express.static('./public'));

app.use((req, res) => {
  match({ routes: Routes, location: req.url }, (error, redirectLocation, renderProps) => {
    if (error) {
      res.status(500).send(error.message);
    } else if (redirectLocation) {
      res.redirect(302, redirectLocation.pathname + redirectLocation.search);
    } else if (renderProps) {
      const body = ReactDOMServer.renderToString(
        React.createElement(Provider, {store},
          React.createElement(RouterContext, renderProps)
        )
      );
      res.status(200).send(template({ body }));
    } else {
      res.status(404).send('Not found');
    }
  })
});

console.log('listening on port ' + port);
app.listen(port);