public async System.Threading.Tasks.Task <CustomerInfo> GetCustomerAsync(string custId, ResourceManagementSystem rms) { var cmsUrl = rms.HasFlag(ResourceManagementSystem.API1) ? _api1 : _api2; var response = await _httpCall.GetJsonRequest <CustomerInfo[]>( cmsUrl + _getCustomerUrl + custId); return(response.Length > 0 ? response[0] : null); }