在Go中查找gRPC调用的客户端名称

Question

I have used protobufs to define my models and gRPC service, and generated protos for Go (.pb.go). When I make gRPC call to a service, I want to find out in server the name of the client/application calling the server API. Can the context parameter in the API be of any help here?

Answer 1

As an option, you can use GRPC Metadata. It's not strong typed (because it's just map[string][]string), but may fit your needs good. Set custom metadata field on client side and check this field in server handler.