Domain Events are raised by Entities, Sent by Unit of Work, Integration Events are published by UseCases

gistfile1.txt

DoThisThingCommandHandler()
{
     var entity = entityrepo.GetEntity();
     entity.DoThisThing(); // raises domain event
     unitOfWork.Save(); // publishes the domain events
     
     _bus.Publish(new ThisThingIntegrationEvent(entity.id, entity.payload, blah));
}

class Entity : AggregateRoot
{
  public void DoThisThing()
  {
    // some manipulation of the entity
    this.RaiseEvent(new ThisDomainEvent(this.id));    
  }
}

class unitOfWork 
{
  // raise the events before saving
  var events = _dbContext.GetAllRaisedEvents();
  foreach (var event in events)
  {
     _mediatr.Send(event);
  }
  
  _dbContext.SaveChanges();
}