public IHttpActionResult AddFavouritePlace([FromUri] string placeId)
        {
            int userId = User.Identity.GetUserId <int>();

            if (!service.AddFavouritePlace(userId, placeId))
            {
                return(Conflict());
            }
            string location = Request.RequestUri.ToString();

            return(Created(location, new { placeId, userId }));
        }