I use protobuf to specify my protocol and then generate a swagger/openAPI spec then use some swagger codegen to generate rest client libraries. For a proxy serv

I use protobuf to specify my protocol and then generate a swagger/openAPI spec then use some swagger codegen to generate rest client libraries. For a proxy server I have to fill in some stub methods to parse the json and turn it into a gRPC call but for the gRPC server there is some library that generates a rest service listener that just calls into the gRPC server code. It works fine. I had to annotate the proto file to say what REST path to use.