Using memcached for session state with express and nodejs on AppEngine

app.yaml

runtime: nodejs
api_version: 1
vm: true
env_variables:
  PORT: 8080
  MEMCACHE_URL: memcache:11211

package.json

{
  "name": "express-memcached-session-demo",
  "version": "1.0.0",
  "private": true,
  "scripts": {
    "deploy": "gcloud preview app deploy app.yaml --set-default --project express-memcached-demo"
  },
  "dependencies": {
    "connect-memcached": "^0.1.0",
    "express": "~4.12.4",
    "express-session": "^1.11.3",
    "cookie-parser": "~1.3.5"
  }
}

server.js

var express = require('express');
var session = require('express-session');
var cookieParser = require('cookie-parser');
var http = require('http');
var MemcachedStore = require('connect-memcached')(session);

var app = express();

app.use(cookieParser());
app.use(session({
    secret: 'appengineFTW',
    key: 'test',
    proxy: 'true',
    store: new MemcachedStore({
        hosts: [process.env.MEMCACHE_URL || '127.0.0.1:11211']
    })
}));

app.get('/', function(req, res){
    if(req.session.views) {
        ++req.session.views;
    } else {
        req.session.views = 1;
    }
    res.send('Viewed <strong>' + req.session.views + '</strong> times.');
});

http.createServer(app).listen(process.env.PORT || 8080, function() {
    console.log("Listening on %d", this.address().port);
});