`yarn add --dev express`

server.js

var path = require('path');
var express = require('express');
var app = express();

var PORT = process.env.PORT || 3000;
var distRoot = './dist'

app.use(express.static(distRoot));

app.get('*', function(req, res) {
  res.sendFile(path.join(__dirname, distRoot, 'index.html'))
})

app.listen(PORT, function () {
  console.log(`Listening on port ${PORT}!`);
});