如何在Hangfire中取得背景工作的目前尝试次数? [英] How do I get the current attempt number on a background job in Hangfire?

问题描述

在我的Hangfire后台作业最后一次尝试结束之前，我需要执行一些数据库操作(我需要删除与该作业相关的数据库记录)

There are some database operations I need to execute before the end of the final attempt of my Hangfire background job (I need to delete the database record related to the job)

我当前的工作设置有以下属性:
[AutomaticRetry(Attempts = 5, OnAttemptsExceeded = AttemptsExceededAction.Delete)]

My current job is set with the following attribute:
[AutomaticRetry(Attempts = 5, OnAttemptsExceeded = AttemptsExceededAction.Delete)]

考虑到这一点，我需要确定当前的尝试次数是多少，但正在努力从Google搜索或Hangfire.io文档中找到有关这方面的任何文档.

With that in mind, I need to determine what the current attempt number is, but am struggling to find any documentation in that regard from a Google search or Hangfire.io documentation.

推荐答案

只需将PerformContext添加到您的工作方法中；您还可以从此对象访问JobId.对于尝试次数，它仍然依赖魔术字符串，但是它比当前/唯一的答案要轻巧一些:

Simply add PerformContext to your job method; you'll also be able to access your JobId from this object. For attempt number, this still relies on magic strings, but it's a little less flaky than the current/only answer:

public void SendEmail(PerformContext context, string emailAddress)
{
    string jobId = context.BackgroundJob.Id;
    int retryCount = context.GetJobParameter<int>("RetryCount");
    // send an email
}

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