V12 IRequestPostProcessor, how to write with void return type IRequest?

[jafin]

In V12 and the removal of Unit return type for a void IRequest,
should an IRequestPostProcessor still be written with Unit for TResponse? ie. IRequestPostProcessor<VoidRequest, Unit>

where VoidRequest is

public class VoidRequest: IRequest {}

But modify VoidRequest to be

public class VoidRequest: IRequest<Unit> {
   ...
   return Unit.Value;
}

Thanks,
Jason

[jbogard]

I added some notes to the upgrade guide around void requests and behaviors:

https:/jbogard/MediatR/wiki/Migration-Guide-11.x-to-12.0

Short answer - leave your request alone, but you'll need to make your pipelines/processors return Unit. This was to avoid dual pipelines/processors etc:

public class VoidRequest: IRequest {}
public class VoidRequestPostProcessor : IRequestPostProcessor<VoidRequest, Unit> {

    public Task Process(VoidRequest request, Unit response, CancellationToken cancellationToken)
    {
        // do some work, whatever
        return Task.CompletedTask;
    }
}

This works because I also removed the generic constraints on behaviors of where TRequest : IRequest<TResponse>.

[jafin]

Appreciate the response, that clarified things for me.