Setting options to a socket.io-client connection - angularjs

Question

I have a socket.io server set with node.js, and a client - manager set inside of the angular application. I'm using socket.io-client library to connect. I'm passing it to controller with angular-socket-io:
app.factory('mySocket', function (socketFactory) {
return socketFactory();
});
app.factory('socket', ['mySocket', '$rootScope', socket]);
app.controller('MainController', ['$scope', 'socket', MainController]);
My server:
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
app.get('/', function(req, res){
});
io.on('connection', function(socket) {
socket.emit('welcome', { message: 'Welcome!', id: socket.id });
socket.on('i am client', console.log);
});
http.listen(3000, function(){
console.log('listening on *:3000');
});
And essential client service:
var socket = io.connect("http://localhost:3000");
console.log(socket);
// Add a connect listener
socket.on('connect',function() {
console.log('Client has connected to the server!');
socket.emit('i am client', "hi!");
socket.on('welcome', console.log);
});
I just couldn't connect them (two separate projects running on different ports) until I forced uri to be http://localhost:3000 in the socket.io.js file...
So my question is: how can I set my uri or host and port in the options so it gets the right uri? Just sayin, that classics like
io.connect("http://localhost:3000");
are simply not working.
EDIT: Figured it out. In the main js file, where socketFactory() is launched, it has to be like that:
app.factory('mySocket', function (socketFactory) {
var myIoSocket = io.connect('http://localhost:3000');
return socketFactory({ ioSocket: myIoSocket });
});