Checking for authentication in AngularJS

gistfile1.js

app.run(function ($location,$rootScope,AuthenticationService, FlashService, $templateCache){

    var routesThatRequireAuth = ['/main'];
    $rootScope.$on('$stateChangeStart', function(event,next,current){
        if(_(routesThatRequireAuth).contains($location.path()) && !AuthenticationService.isLoggedIn()) {
            $location.path('/login');
            FlashService.info("Por favor efetue login para continuar.");
        }
    });

});
//by leonardo.frangelli do grupo fb.com/groups/angularjsbrasil/428371040637355/