nodejs simple static vanilla server (for dev/homolog reasons)

app.js

const http = require('http')
const fs = require('fs')

const port = process.env.PORT || process.env.npm_config_port || process.env.npm_package_config_port || 3000
const typeList = {
	html: 'text/html',
	svg: 'image/svg+xml',
	json: 'application/json',
	js: 'application/javascript',
	css: 'text/css',
	jpg: 'image/jpeg',
	png: 'image/png'
}

http.createServer((req, res) => {
	console.log(req.url)
	const filePath = __dirname + '/www' + (/\/$/.test(req.url) ? req.url + 'index.html' : req.url)
	fs.readFile(filePath, (err, data) => {
		if (err) {
			res.writeHead(404)
			res.end(JSON.stringify(err))
			return
		}

		let type = typeList[(req.url.split('.').pop() || 'html')]

		if (type) {
			res.setHeader('Content-Type', type);
		}
		res.writeHead(200)
		res.end(data)
	})
}).listen(port)

console.log('Listening to port', port)

$ curl https://gist.githubusercontent.com/mcarneiro/618af9384d2251df1ab189b29a40d20e/raw/app.js > app.js
$ node app.js