How to get jobid within job?

question
1

Hi
How to get jobid within job? I need the jobid so that i can update process status (i.e percentage) to SQL table. My table is using jobid as primary key as it is unique.

Please advice. thank you

1 Like
2

How about simply passing job ID as one of parameters? Nobody knows this better than calling code, so, why not.

3

Hi
Shall you show sample code?

MyTask task = new MyTask();
var jobId = BackgroundJob.Enqueue( ( ) => MyTask.Execute( ... )  );

Since jobId is returned after job enqueued, how could I pass it as parameter to my task? As I understand, Hangfire will activate my class again for execution instead of using the instance that I created.

Of course, I was thinking to self-generate my own id, pass to myTask. Then, use my id map to jobId returned by Hangfire.

But, before I use this approach, I am thinking if that is more direct way.

Please advice. thank you

1 Like
4

KKChan! Hi!
In my opinion, you’re right when think to self generate your own id, and after pass to task, this way brings the job for your control, and with this ID you can do everything :smile:

5

General recommendation is to forget about Hangfire in your jobs (except IJobCancellationToken :frowning:). However, you can create a server filter for that:

public class JobContext : IServerFilter
{
    [ThreadStatic]
    private static string _jobId;

    public static string JobId { get { return _jobId; } set { _jobId = value; } }

    public void OnPerforming(PerformingContext context)
    {
        JobId = context.JobId;
    }
}

// And register it
GlobalConfiguration.Configuration.UseFilter(new JobContext());
1 Like
6

nice, this JobContext works well. have been searching for such solution for some time because the attribute solution never worked.

7

I realise this is an old discussion, however the JobContext storing the JobId in a ThreadStatic field will no longer work with the 1.6.0-beta1 version of Hangfire if you invoke a Job using the async keyword returning a Task. The continuation causes the context to appear on a different thread than what the JobFilter is executing.

It looks like this pull request would be required: https://github.com/HangfireIO/Hangfire/pull/466

8

The updated and correct way to get jobid inside a Job is now explained here Use Hangfire job id in the code

1 Like
9

Bad link. We can all guess what technique it uses.