Resolved: How to capture data created from within a Hangfire job?

In this post, we will see how to resolve How to capture data created from within a Hangfire job?

Question:

I’m generating some new data within my Hangfire job:

Public Sub Run() Implements IEngine.Run
  Dim oTemperature As Temperature
  Dim nFahrenheit As Decimal
  Dim nCelsius As Decimal
  Dim oRandom As Random

  oRandom = New Random

  nFahrenheit = (oRandom.NextDouble * 100.0) - 20.0 ' Random temperature between -20°F and +80°F '
  nCelsius = (nFahrenheit - 32.0) * 5.0 / 9.0 ' Convert Fahrenheit to Celsius '

  oTemperature = New Temperature With {.Fahrenheit = nFahrenheit, .Celsius = nCelsius}

  Me.Context.Temperatures.Add(oTemperature)
  Me.Context.SaveChanges()
End Sub

How do I get this new data from the job into my controller so I can display it on the page?
The official documentation doesn’t seem to cover this, at least not as far as I can find. Answers to this question purport to cover it, I believe, but if so I’m not understanding how to actually implement it.
Here’s what I’ve got in my controller:

Dim oJob As IBackgroundJobClient
oJob = Me.HttpContext.RequestServices.GetService(GetType(IBackgroundJobClient))
oJob.Schedule(Of IEngine)(Sub(Engine) Engine.Run(), TimeSpan.FromMinutes(1))

I tried passing a DTO-like object to Engine.Run() and then assigning the new values there, but they didn’t make it out for some reason.
Are those answers accomplishing what I’m after? If so, how would I integrate the solution into my existing code?

Best Answer:

It’s working now.
My confusion stemmed from the fact that I’d glossed over a certain nuance: the Schedule function takes an Expression(Of Action(Of IEngine)) and I was hung up on the false notion that it was referring to IEngine.Run(), thereby requiring it to be the Action in question.
I’m not sure where I came up with that idea, but it’s what was holding me back.
Once I changed the Run method to a function, I was able to get the result in the manner described in the answers.

If you have better answer, please add a comment about this, thank you!

Source: Stackoverflow.com

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