/// <inheritdoc /> public override async Task <IPaymentVerifyResult> VerifyAsync(InvoiceContext context, CancellationToken cancellationToken = default) { if (context == null) { throw new ArgumentNullException(nameof(context)); } var account = await GetAccountAsync(context.Payment).ConfigureAwaitFalse(); var callbackResult = await AsanPardakhtHelper.CreateCallbackResult( context, account, _httpContextAccessor.HttpContext.Request, _crypto, _messageOptions); if (!callbackResult.IsSucceed) { return(PaymentVerifyResult.Failed(callbackResult.Message)); } var data = await AsanPardakhtHelper.CreateVerifyData(callbackResult, account, _crypto) .ConfigureAwaitFalse(); var responseMessage = await _httpClient .PostXmlAsync(_gatewayOptions.ApiUrl, data, cancellationToken) .ConfigureAwaitFalse(); var response = await responseMessage.Content.ReadAsStringAsync().ConfigureAwaitFalse(); var verifyResult = AsanPardakhtHelper.CheckVerifyResult(response, callbackResult, _messageOptions); if (!verifyResult.IsSucceed) { return(verifyResult.Result); } data = await AsanPardakhtHelper.CreateSettleData(callbackResult, account, _crypto) .ConfigureAwaitFalse(); responseMessage = await _httpClient .PostXmlAsync(_gatewayOptions.ApiUrl, data, cancellationToken) .ConfigureAwaitFalse(); response = await responseMessage.Content.ReadAsStringAsync().ConfigureAwaitFalse(); return(AsanPardakhtHelper.CreateSettleResult(response, callbackResult, _messageOptions)); }