Middleware registration without gRPC

[bbieniek]

Hi,

Is there any other way to register middleware than by using ConfigureFunctionsWorkerDefaults?
Currently, when we want to add middleware, the function also adds support for gRPC.
In our case, we do not really want and need gRPC support.

I would propose to add an extension method that would allow for:

ConfigureFunctionsWorker(builder => {
builder.UseMiddleware<T>();
}

[fabiocav]

@bbieniek we already have this capability. The core implementation doesn't actually know anything about gRPC, and if you use the middleware registration APIs there, there will be no gRPC services setup.

I'm curious, though. Can you please share more about your scenario? To run on Functions, gRPC services will be required today. Can you please share more about what you're trying to do?

Thanks!

[bbieniek]

@fabiocav

The core implementation doesn't actually know anything about gRPC, and if you use the middleware registration APIs there, there will be no gRPC services setup.

Could you share sample code for this scenario?
Do you mean a simple registration like services.AddSingleton(); ?

To run on Functions, gRPC services will be required today.

Do you mean that in order to run dotnet isolated Azure Function in the actual Azure cloud we have to have gRPC?

We want to expose simple GET/POST/PUT endpoints.
If we have to also expose gRPC, that is an additional endpoint that has to be secured and maintained and we would prefer not to have it.

[bbieniek]

Just to clarify. What I meant in the first comment is that using the extension ConfigureFunctionsWorkerDefaults to register middleware forces us to add gRPC as well.
The question is: is there any other way to register middleware?

[fabiocav]

The default implementation here adds all of the default services, including the gRPC based communication services.

You can bypass that by using this instead, but it would be your responsibility to add the implementations of the required IWorker implementation. You can look at the gRPC implementation as a reference here

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