即使 Braintree 中出现错误， result.credit_card_verification 也会返回 nil

我正在使用 Braintree 进行付款处理，并且我正在尝试获取处理器响应代码 https://www.braintreepayments.com/docs/ruby/reference/processor_responses来自 Braintree 和 Ruby。

这是我的代码：

 verification = result.credit_card_verification
 response_code = verification.try(:processor_response_code)

即使出现错误，我也得到验证为零。

还有其他方法可以获取处理器响应代码吗？

我从这里得到了这个代码here https://www.braintreepayments.com/docs/ruby/card_verifications/overview

这是我的 result.errors ：

:errors: !ruby/object:Braintree::Errors
  errors: !ruby/object:Braintree::ValidationErrorCollection
    errors: []
    nested:
      :customer: !ruby/object:Braintree::ValidationErrorCollection
        errors: []
        nested:
          :credit_card: !ruby/object:Braintree::ValidationErrorCollection
            errors:
            - !ruby/object:Braintree::ValidationError
              code: '81707'
              attribute: cvv
              message: CVV must be 4 digits for American Express and 3 digits for
                other card types.
            - !ruby/object:Braintree::ValidationError
              code: '81713'
              attribute: expiration_year
              message: Expiration year is invalid.
            - !ruby/object:Braintree::ValidationError
              code: '81703'
              attribute: number
              message: Credit card type is not accepted by this merchant account.
            - !ruby/object:Braintree::ValidationError
              code: '81715'
              attribute: number
              message: Credit card number is invalid.
            nested:
              :billing_address: !ruby/object:Braintree::ValidationErrorCollection
                errors: []
                nested: {}

_{I work at Braintree. If you'd like more help than you can get here on Stack Overflow, please reach out to our support team https://support.braintreepayments.com/.}

处理Braintree 结果对象 https://www.braintreepayments.com/docs/ruby/transactions/result_handling是进步的。

If result.success? is false，然后你检查result.errors，这代表验证错误 https://www.braintreepayments.com/docs/ruby/general/validation_errors.

If result.errors is nil，则请求有效。在这种情况下，您将有一个transaction or verification对象就像result.success? was true.

然后您可以查看result.verification's status, processor_response_code, gateway_rejection_reason, etc.

链接的文档提供了有关处理错误结果的更多详细信息。