const express = require('express') const morgan = require('morgan') const compression = require('compression') const fs = require('fs') const jsdom = require('jsdom') const useEnv = require('./env') fs.readFile('./template/index.html', 'utf8', (err, file) => { if (err) { throw err; } const { JSDOM } = jsdom const dom = new JSDOM(file); const html = "\n" + useEnv(dom.window.document).documentElement.outerHTML; fs.writeFile('./www/index.html', html, 'utf8', (err) => { if (err) { throw err; } }); }); const app = express(); app.use(morgan('combined')); app.use(express.static('www')); app.use(compression()) const server = app.listen(process.env.PORT || 3000, () => { const host = server.address().address const port = server.address().port console.log('Express app listening at http://%s:%s', host, port) })