protected async override Task <object> OnPerform() { var response = await _restClient.CancelTenders(_transactionType); var data = await response.Content.ReadAsStringAsync(); switch (response.StatusCode) { case HttpStatusCode.OK: var newSale = new DeSerializer().MapSale(data); return(new Mapper().MapSale(newSale)); default: return(await HandleExceptions(response)); } }