Redirect to a new URL using $routeProvider's resolve feature

Currently, I am in the process of developing an application that includes the following endpoint:

.when('/service/:id?', {
    templateUrl: 'views/service.html',
    controller: 'ServiceCtrl',
    resolve: {
      service: function($q, Caregiver, $route) {
        return $q(function(resolve, reject) {
          if (!Caregiver.isLoggedIn()) {
            reject();
          } else {
            resolve(Caregiver.getService($route.current.params.id));
          }
        });
      }
    }
  })

The method Caregiver.getService(id) retrieves the Service with the specified ID through an AJAX request. If the ID is undefined, the next upcoming Service for the current day will be returned.

My goal is to ensure that the application always redirects to /service/:id once we have determined which Service (and its ID) needs to be displayed. When a user accesses /service, I aim to execute

$location.replace('/service/' + service.id);
seamlessly. However, if a redirection is implemented, the resolve function will execute again, resulting in a duplicate fetch of the event.

I have attempted various workarounds, such as this, to prevent the page from reloading once the user is already inside. Although the controller runs only once, the resolve function in the $routeProvider is still triggered twice.

Answer №1

Consider setting up a route for '/service' that simply redirects the user.

Specify a value to update $location path with and trigger route redirection. This can be a string or a function.

For more information, refer to the official documentation.

If the value for redirection is a function, it will receive route parameters extracted from the current $location.path(), the current $location.path itself, and the current $location.search(). The function should return a string to update $location.path() and $location.search().

If the above approach does not work, consider enhancing the service responsible for fetching events. You can cache the response obtained without any arguments and avoid making the fetch request on subsequent calls.

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