Hi I created the following SurfaceController:

 namespace NgakNgakBeach.SurfaceControllers
 {
    public class NgakNgakActionController : Umbraco.Web.Mvc.SurfaceController
    {
        [HttpPost]
        public ActionResult AjaxTest()
        {
            return Json("this works!");
        }
    }
}

According to the doc (https://our.umbraco.org/Documentation/Reference/Mvc/surface-controllers) I should be able to call this via: http://localhost:12429/umbraco/surface/NgakNgakAction/AjaxTest but I keep getting a 404.

I also saw that there are APIControllers (https://our.umbraco.org/documentation/Reference/WebApi/).

Which type should I use for fron end ajax calls?

Thanks!