node.js - How to tie up express sessions with socket.io -

how tie sessions in express 4 socket.io session data can both retrieved , saved in both directions?

authentication in socket.io token-based jwt

the same socket shared in multiple vhosts

eg:

global.socket.of('/secure').on('connection', function(socket){     console.log('client connected "secure" socket'); }); 

app.js

var port = 3000,     jwtsecret = '26fed98d8c6c7c54f485f1ee7ffe44d2e1feae28';  var app = require('express')(),     vhost = require('vhost'),     server = require('http').createserver(app),     socketiojwt = require('socketio-jwt');  //  start server socket.io global.socket = require('socket.io').listen(app.listen(port, function(){     console.log('express server listening on port '+port); }));  //  socket authentication global.socket.set('authorization', socketiojwt.authorize({     secret: jwtsecret,     handshake: true }));  //  virtual hosts app.use(vhost('secure.domain.com', require('./vhost/secure')(jwtsecret))); 

vhost/secure.js

var express = require('express'),     http = require('http'),     jwt = require('jsonwebtoken');  function host(jwtsecret){     var app = express();      //  session     app.use(require('cookie-parser')());     app.use(require('express-session')({         secret: '0a6e0caf5477cee686726ad06284309eb4a580e4',         key: 'express.sid',         cookie: {             maxage : 1000*60*10         }     }));      //  http 200     app.get('/', function(req, res){         res.end('helle world!');     });      app.post('/login', function(req, res){         var profile = {             id: 1,             name: 'username'         };         var token = jwt.sign(profile, jwtsecret, {expiresinminutes: 60});         res.json({token: token});     });      global.socket.of('/secure').on('connection', function(socket){         console.log('client connected "secure" socket');          socket.on('disconnect', function(){             console.log('client disconnected "secure" socket');         });     });      return http.createserver(app); }  module.exports = host;