protected async override Task <object> OnPerform() { var model = new { tillNumber = _cacheManager.TillNumberForSale, saleNumber = _cacheManager.SaleNumber, itemNumber = _item, overrideCode = _overrideCode, documentNumber = _documentNumber, documentDetail = _documentDetail }; var contract = JsonConvert.SerializeObject(model); var content = new StringContent(contract, Encoding.UTF8, ApplicationJSON); var response = await _restClient.OverrideLimitOverride(content); var data = await response.Content.ReadAsStringAsync(); switch (response.StatusCode) { case HttpStatusCode.OK: var success = new DeSerializer().MapSuccess(data); return(success.success); default: return(await HandleExceptions(response)); } }