unpkg/modules/actions/serveRootPage.js

const MainPage = require('../client/MainPage');
const renderPage = require('../utils/renderPage');

const globalScripts =
  process.env.NODE_ENV === 'production'
    ? [
        '/react@16.4.1/umd/react.production.min.js',
        '/react-dom@16.4.1/umd/react-dom.production.min.js',
        '/react-router-dom@4.3.1/umd/react-router-dom.min.js'
      ]
    : [
        '/react@16.4.1/umd/react.development.js',
        '/react-dom@16.4.1/umd/react-dom.development.js',
        '/react-router-dom@4.3.1/umd/react-router-dom.js'
      ];

function serveRootPage(req, res) {
  const scripts = globalScripts.concat(req.assets.getScripts('main'));
  const styles = req.assets.getStyles('main');

  const html = renderPage(MainPage, {
    scripts: scripts,
    styles: styles
  });

  res.send(html);
}

module.exports = serveRootPage;