express-demo.js

'use strict';

let express = require('express'),
    bodyParser = require('bodyParser'),
    path = require('path'),
    morgan = require('morgan'),
    app = express(),
    hostname = '127.0.0.1',
    port = 8080,
    publicDir = '/public';

app.use(morgan('dev'));

app.use(bodyParser.json());

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

app.listen(port, hostname);

app.get("/", function (req, res) {
    res.sendFile(path.join(publicDir, '/index.html'));
});

app.get("hello/:name", function (req, res) {
    res.send('Hey ' + req.params.user + '!');
});

console.log('Static file server showing %s listening at http://%s:%s', publicDir, hostname, port);

app.listen(port, hostname);