server.js

var express = require('express');
var compression = require('compression');
var prerender = require('prerender-node');
var bodyParser = require('body-parser');
var Schema = mongoose.Schema;
var app = express();

// Here we require the prerender middleware that will handle requests from Search Engine crawlers
// We set the token only if we're using the Prerender.io service
app.use(require('prerender-node')
    .set('prerenderServiceUrl', 'http://service.prerender.io'));
app.use(express.static(__dirname + '/dist'));
app.use(compression());
app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(bodyParser.json());

//
// handle all gets
//
app.get('/*', function(req, res) {
    res.sendFile(__dirname + '/dist/index.html');
});

//
// Listen the app
//
app.listen(process.env.PORT || 3001);