A short answer is it's possible, but that also means you are using HTTP2 directly.
That would make the gRPC became useless. Or you have to implement client/server-side abstraction for RPC.
Therefore I guess you probably can use .proto, just redirect to existed services.
maybe last option helpful for me. okay i will try it. thanks for suggest me :)
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.