app.js

var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');

var app = express();

// Use the session middleware
app.use(session({
    secret: 'keyboard cat',
    rolling: true,
    saveUninitialized: true,
    resave: false,
    cookie: { maxAge: 10000 }
}));

// Access the session as req.session
app.get('/', function(req, res, next) {
    var sess = req.session
    res.setHeader('Content-Type', 'text/html');
    res.write('<p>views: ' + sess.views + '</p>');
    res.write('<p>expires in: ' + (sess.cookie.maxAge / 1000) + 's</p>');
    res.end();
});

app.listen(3000, () => console.log('up and running'));