aa.js

var express = require('express')
var parseurl = require('parseurl')
var session = require('express-session')
const redis = require('redis')

var RedisStore = require('connect-redis')(session)
var client = redis.createClient ({
// REPLACE HERE
});

var app = express()

app.use(session({
store: new RedisStore({ client: client }),
secret: 'forest squirrel',
resave: false,
saveUninitialized: true
}))

app.use(function (req, res, next) {
if (!req.session.views) {
req.session.views = {}
}

// get the url pathname
var pathname = parseurl(req).pathname

// count the views
req.session.views[pathname] = (req.session.views[pathname] || 0) + 1
next()
})

app.get('/', function (req, res, next) {
res.send('you viewed this page ' + req.session.views['/'] + ' times')
})

app.get('/foo', function (req, res, next) {
res.send('you viewed this page ' + req.session.views['/foo'] + ' times')
})

app.get('/bar', function (req, res, next) {
res.send('you viewed this page ' + req.session.views['/bar'] + ' times')
})

app.listen(8080, function () {
console.log('Example app listening on port 8080!');
});