Azure内容审核API错误处理：如何将异常消息存入审计日志变量

你需要在调用Azure Content Moderation API的代码外层包裹try-catch块，捕获API返回的异常并提取消息，之后将消息传入审计日志的ExceptionMessage字段。

具体实现逻辑： #

• 捕获Azure API调用时的各类异常（比如HttpRequestException、Azure SDK专属异常），提取完整异常信息（包含内部异常内容，避免遗漏故障细节）。
• 将异常消息存入变量，在创建ProfanityAuditLog时赋值给对应字段。
• 无论触发脏话拒绝还是警告逻辑，只要API出现异常，都要把异常信息记录到审计日志中；若API异常但未触发业务规则，也建议单独记录日志。

修改后的代码示例： #

string azureExceptionMessage = null;

try
{
    // 这里放置调用Azure Content Moderation API的代码
    // 示例：var screenResult = await _contentModerationClient.ScreenTextAsync(...)
}
catch (Exception ex)
{
    // 提取完整异常信息（含堆栈），也可按需只取消息：ex.Message + (ex.InnerException != null ? $" | {ex.InnerException.Message}" : "")
    azureExceptionMessage = ex.ToString();
}

// 业务判断逻辑
if (isProfanity)
{
    var log = new ProfanityAuditLog
    {
        Username = text,
        DetectedLanguage = detectedLanguage?.DetectedLanguageProperty,
        IsProfanity = isProfanity,
        ThresholdCategory1 = _options.ThresholdCategory1,
        ThresholdCategory2 = _options.ThresholdCategory2,
        ThresholdCategory3 = _options.ThresholdCategory3,
        ExceptionMessage = azureExceptionMessage
    };
    await _profanityAuditRepo.AddLogAsync(log);
    
    throw new RemoteException("The username contains profanity. Please pick a different one.",
        "The username contains profanity and has been denied.",
        RemoteExceptionType.ProfileUsernameProfanityException);
}
else if (warning)
{
    var log = new ProfanityAuditLog
    {
        Username = text,
        DetectedLanguage = detectedLanguage?.DetectedLanguageProperty,
        IsProfanity = isProfanity,
        ThresholdCategory1 = _options.ThresholdCategory1,
        ThresholdCategory2 = _options.ThresholdCategory2,
        ThresholdCategory3 = _options.ThresholdCategory3,
        ExceptionMessage = azureExceptionMessage
    };
    await _profanityAuditRepo.AddLogAsync(log);
    
    throw new RemoteException("The username might contain profanity.",
        "The username might contain profanity and will have to be validated by support.",
        RemoteExceptionType.ProfileUsernameProfanityWarningException);
}
// 处理API异常但未触发业务规则的情况
else if (!string.IsNullOrEmpty(azureExceptionMessage))
{
    var log = new ProfanityAuditLog
    {
        Username = text,
        DetectedLanguage = detectedLanguage?.DetectedLanguageProperty,
        IsProfanity = isProfanity,
        ThresholdCategory1 = _options.ThresholdCategory1,
        ThresholdCategory2 = _options.ThresholdCategory2,
        ThresholdCategory3 = _options.ThresholdCategory3,
        ExceptionMessage = azureExceptionMessage
    };
    await _profanityAuditRepo.AddLogAsync(log);
}

补充说明： #

• 使用ex.ToString()可以保留完整的异常堆栈，方便后续排查API故障；如果只需要简洁的错误描述，可改用ex.Message并拼接内部异常的消息。
• 异步方法需用await调用AddLogAsync，避免日志未完成写入就抛出异常。

内容的提问来源于stack exchange，提问作者Spottie97