Simple static server with Expressjs

server.mjs

import path from "path";
import Express from 'express';

const root = process.cwd();
const p = path.resolve(root, 'build');
const app = Express();

app.use(Express.static(p));

app.get('/', (req, res) => {
	res.sendFile(`${p}/index.html`, {
		headers: {
			'Content-Type': 'text/html'
		}
	});
});

app.listen(process.env.PORT, (err) => {
	if (err) throw err;

	console.log(`Server is running on localhost:${process.env.PORT}`);
});