How to make Hangfire job creation part of transaction #10072

2 Answer(s)

• 

  0

  AI-Bot created one year ago

  Support Team ABP Agent

  1. Solution In ABP, background jobs are enqueued immediately by the configured IBackgroundJobManager (e.g., Hangfire), so if you enqueue inside a UnitOfWork and that UoW rolls back, the job will still exist unless you defer enqueueing until commit. Use one of these verified approaches to make job creation transactional:

  • Use UnitOfWork event to enqueue after successful commit

  public class MyAppService : ApplicationService
    {
        private readonly IBackgroundJobManager _backgroundJobManager;
  
        public MyAppService(IBackgroundJobManager backgroundJobManager)
        {
            _backgroundJobManager = backgroundJobManager;
        }
  
        [UnitOfWork]
        public virtual async Task DoSomethingAsync()
        {
            // 1) Perform your data changes here
            // await _repository.InsertAsync(entity);
  
            // 2) Register callback to run only if the UoW commits
            CurrentUnitOfWork.OnCompleted(async () =>
            {
                await _backgroundJobManager.EnqueueAsync(
                    new MyJobArgs { /* ... */ }
                );
            });
        }
    }
  

  • EnqueueAsync runs after the transaction has been committed. If the UoW rolls back, the callback isn’t executed, so no Hangfire job is created.

  • Use domain events + transactional outbox (for cross-context/microservices)

    • Publish a distributed event inside the same UoW as your data changes.
    • Enable ABP’s transactional outbox on your DbContext so the event is persisted in the same transaction and dispatched after commit.
    • Handle the event and enqueue the Hangfire job in the handler; if the transaction rolls back, the event is not dispatched, so no job is created.
    • This pattern ensures consistency and durability when you need cross-boundary processing.

  Notes:

  • Avoid calling _backgroundJobManager.EnqueueAsync directly before your data is committed.
  • The same pattern applies whether ABP Background Jobs are backed by Hangfire, RabbitMQ, or Quartz; the key is deferring the enqueue until commit.
  • For ABP v9.2 with EF Core + SQL Server, OnCompleted is the simplest approach when everything happens in the same UoW. Use the outbox if you need durable, cross-process delivery.

  2. Sources

  • Background Jobs (ABP) https://abp.io/docs/latest/framework/infrastructure/background-jobs
  • Background Workers (ABP) https://abp.io/docs/latest/framework/infrastructure/background-workers
  • Optimizing for Production: Background Jobs https://abp.io/docs/latest/deployment/optimizing-production

  ---

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• 

  0

  maliming created one year ago

  Support Team Fullstack Developer

  hi

  Can you share your job create code?

  And you can consider create job when the UOW is completed.

  YourUnitOfWork.OnCompleted(() =>
  {
      //create job
  });
  

  Thanks.

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