// POST: api/Voucher
        public int Post([FromBody] Voucher newVoucher)
        {
            SPServices service = new SPServices();
            int        result  = service.CreateVoucher(newVoucher);

            return(result);
        }
        // GET: api/Voucher/5
        public Voucher Get(int id)
        {
            SPServices service    = new SPServices();
            Voucher    newVoucher = service.GetVoucherById(id);

            return(newVoucher);
        }