import { renderToString, renderToStaticMarkup } from 'react-dom/server'; import MainApp from '../client/main/App.js'; import MainTemplate from './utils/MainTemplate.js'; import getScripts from './utils/getScripts.js'; import { createElement, createHTML } from './utils/markupHelpers.js'; const doctype = ''; const globalURLs = process.env.NODE_ENV === 'production' || process.env.NODE_ENV === 'staging' ? { '@emotion/core': '/@emotion/core@10.0.6/dist/core.umd.min.js', react: '/react@16.7.0/umd/react.production.min.js', 'react-dom': '/react-dom@16.7.0/umd/react-dom.production.min.js' } : { '@emotion/core': '/@emotion/core@10.0.6/dist/core.umd.min.js', react: '/react@16.7.0/umd/react.development.js', 'react-dom': '/react-dom@16.7.0/umd/react-dom.development.js' }; export default function serveMainPage(req, res) { const content = createHTML(renderToString(createElement(MainApp))); const elements = getScripts('main', 'iife', globalURLs); const html = doctype + renderToStaticMarkup(createElement(MainTemplate, { content, elements })); res .set({ 'Cache-Control': 'public, max-age=14400', // 4 hours 'Cache-Tag': 'main' }) .send(html); }