Example about how to connect to facebook, syncing the fb username with your ACS Cloud, and looking for your friends using the same app. USAGE: Create a new mobile project, classic titanium, with cloud support. Paste this app.js into your project's app.js.

app.js

var Cloud = require('ti.cloud');
Cloud.debug = true;
// optional; if you add this line, set it to false for production
var fb = require('facebook');
// Check for your app id in developers.facebook.com 
fb.appid = ADD_YOUR_APPID_HERE!;
fb.permissions = ['publish_stream'];
// Permissions your app needs
fb.forceDialogAuth = true;
fb.addEventListener('login', function(e) {
  if (e.success) {
		alert('Logged In');
		Cloud.SocialIntegrations.externalAccountLogin({
			type : 'facebook',
			token : Ti.Facebook.accessToken
		}, function(e) {
			if (e.success) {
				var user = e.users[0];
				alert('Success:\n' + 'id: ' + user.id + '\n' + 'first name: ' + user.first_name + '\n' + 'last name: ' + user.last_name);
				Cloud.SocialIntegrations.searchFacebookFriends(function(e) {
					if (e.success) {
						alert('Success:\n' + 'Count: ' + e.users.length);
						for (var i = 0; i < e.users.length; i++) {
							var user = e.users[i];
							alert('id: ' + user.id + '\n' + 'first name: ' + user.first_name + '\n' + 'last name: ' + user.last_name);
						}
					} else {
						alert('Error:\n' + ((e.error && e.message) || JSON.stringify(e)));
					}
				});

			} else {
				alert('Error:\n' + ((e.error && e.message) || JSON.stringify(e)));
			}
		});

	} else if (e.error) {
		alert(e.error);
	} else if (e.cancelled) {
		alert("Canceled");
	}
});
fb.authorize();

var win = Ti.UI.createWindow({
	backgroundColor : 'white',
});
win.open();