contacts/js/components/contactList/contactList_controller.js

app.controller('contactlistCtrl', ['$scope', 'ContactService', function($scope, ContactService) {
	var ctrl = this;

	ContactService.registerObserverCallback(function(contacts) {
		$scope.$apply(function() {
			ctrl.contacts = contacts;
		});
	});

	ContactService.getAll().then(function(contacts) {
		$scope.$apply(function(){
			ctrl.contacts = contacts;
		});
	});

	ctrl.createContact = function() {
		ContactService.create();
	};
}]);