GetListings - Request and ResponseDTO

 [Route("/listings", "GET")]
    public class GetListings : IReturn<GetListingsResponse>
    {
        public int? CategoryId { get; set; }

        public int? PriceFrom { get; set; }
        public int? PriceTo { get; set; }
    }

    public class GetListingsResponse
    {
        public List<Listing> Result { get; set; }
        public int TotalRecords { get; set; }
    }