how to attach socket.io to SwaggerExpress

[Aybyd Romero]

'use strict';

var SwaggerExpress = require('swagger-express-mw');
var app = require('express')();
var io = require('./api/helpers/socketio');

module.exports = app;

var config = {
    appRoot: __dirname
};

SwaggerExpress.create(config, function(err, swaggerExpress) {
    if (err) { throw err; }
    swaggerExpress.register(app);
    app.listen(10010, function () {
        console.log('Application is start listening on localhost:10010');
    });
     io.on('connection',function(socket){
     console.log("A user is connected: " + socket.id);
     io.emit('message', "Welcome")
    });

});
io.attach(app);

With that approach, my server is not getting up, got an error on socket.io attaching to app.