Hide unpublished variants 3

TreeVariantSettingsController.cs

using System.Configuration;
using System.Web.Http;

namespace Site.Core.ApiControllers
{
    public class TreeVariantSettingsController : Umbraco.Web.WebApi.UmbracoApiController
    {
        [HttpGet]
        public string HideUnpublishedVariantsFromTree()
        {
            var retVal = ConfigurationManager.AppSettings.Get("HideUnpublishedVariantsFromTree") ?? "false";
            return (retVal.ToLower()); ;
        }
    }
}