How to do asynchronous task when defining a permission

[prashant-pokhriyal]

angular-permission: v5.3.2
angularjs: v1.7.3

Following is the state definition for home. In that I'm checking whether user is authorized.

$stateProvider.state('500', home);
var home = {
  abstract: true,
  url: '/home',
  data: {
    permissions: {
      only: ['loggedin',],
      redirectTo: {
        loggedin: 'login',
      },
    }
  },
  templateUrl: 'components/home/home.view.html',
  controller: 'HomeCtrl as home'
};

---

Following is the permission definition for loggedin

PermPermissionStore.definePermission('loggedin', isAuthenticated);

function isAuthenticated(permissionName, transitionProperties) {
  // check if token is valid.
  if ($auth.isAuthenticated()) {
    return true;
  }
  // if not then refresh token
  return tokenRestService.refresh().then(
    function (response) {
      if (response != null) {
        $auth.setToken(response);
      }
    },
    function (response) {
      localStorage.removeItem('user');
    }
  );
}

But somewhat it is not working when I'm doing asynchronous call. If I change isAuthenticated function as follow, then it is working properly, but I need to refresh token if in case token is expired, otherwise redirect user to login page.

function isAuthenticated(permissionName, transitionProperties) {
  if ($auth.isAuthenticated()) {
    return true;
  }
  return false;
}

---

From the doc:

Sometimes you will need to call some a back-end api or do some other
asynchronous task to check if permission is still valid. For that you
can use promises and simply return them from validation function:

PermPermissionStore
  // Define user permission calling back-end
  .definePermission('hasValidSession', /*@ngInject*/function (Session) {
    // Let's assume that Session service calls backend API via $http and return promise:
    // -- $q.resolve() means that session is active 
    // -- $q.reject() means that session expired
    return Session.checkSession();
  });

But when I use a service in the definePermission, it is simply going through without any redirection.