f

internal/application/api/api_application_service.go

@@ -171,6 +171,16 @@ func (s *ApiApplicationServiceImpl) CallApi(ctx context.Context, cmd *commands.A
 		go s.asyncProcessDeduction(context.Background(), apiCall, validationResult)
 		return transactionId, "", ErrQueryEmpty
 	}
+	if errors.Is(err, ErrSuccessNoBill) {
+		encryptedResponse, encErr := crypto.AesEncrypt([]byte(response), validationResult.GetSecretKey())
+		if encErr != nil {
+			s.logger.Error("加密响应失败", zap.Error(encErr))
+			go s.asyncRecordFailure(context.Background(), apiCall, encErr)
+			return "", "", ErrSystem
+		}
+		go s.asyncSaveApiCall(context.Background(), apiCall, validationResult, response, decimal.Zero)
+		return transactionId, string(encryptedResponse), nil
+	}
 	if err != nil {
 		// 异步记录失败状态
 		go s.asyncRecordFailure(context.Background(), apiCall, err)
@@ -405,6 +415,11 @@ func (s *ApiApplicationServiceImpl) callExternalApi(ctx context.Context, cmd *co
 		callContext)
 
 	if err != nil {
+		var successNoBill *processors.SuccessNoBillError
+		if errors.As(err, &successNoBill) {
+			return string(successNoBill.Response), ErrSuccessNoBill
+		}
+
 		// 数据宝 10001/10006：查空但计费，由 CallApi 统一处理
 		if errors.Is(err, shujubao.ErrQueryEmpty) {
 			return "", ErrQueryEmptyBillable
@@ -440,10 +455,13 @@ func (s *ApiApplicationServiceImpl) callExternalApi(ctx context.Context, cmd *co
 	return string(response), nil
 }
 
-// asyncSaveApiCall 异步保存API调用记录
-func (s *ApiApplicationServiceImpl) asyncSaveApiCall(ctx context.Context, apiCall *entities.ApiCall, validation *dto.ApiCallValidationResult, response string) {
-	// 标记为成功
-	apiCall.MarkSuccess(validation.GetAmount())
+// asyncSaveApiCall 异步保存API调用记录；可选 cost 覆盖扣费金额（如成功但不扣费场景传 decimal.Zero）
+func (s *ApiApplicationServiceImpl) asyncSaveApiCall(ctx context.Context, apiCall *entities.ApiCall, validation *dto.ApiCallValidationResult, response string, cost ...decimal.Decimal) {
+	chargeAmount := validation.GetAmount()
+	if len(cost) > 0 {
+		chargeAmount = cost[0]
+	}
+	apiCall.MarkSuccess(chargeAmount)
 
 	// 检查TransactionID是否已存在，避免重复创建
 	existingCall, err := s.apiCallRepository.FindByTransactionId(ctx, apiCall.TransactionId)

internal/application/api/errors.go

@@ -7,6 +7,8 @@ var (
 	ErrQueryEmpty           = errors.New("查询为空")
 	// ErrQueryEmptyBillable 数据宝查空（10001/10006）：对外返回查询为空，但仍正常扣费
 	ErrQueryEmptyBillable = errors.New("查询为空")
+	// ErrSuccessNoBill 对外返回正常业务响应，但不扣费
+	ErrSuccessNoBill = errors.New("成功不扣费")
 	ErrQueryFailed          = errors.New("查询失败")
 	ErrSystem               = errors.New("接口异常")
 	ErrDecryptFail          = errors.New("解密失败")