vendor/github.com/grpc-ecosystem/go-grpc-prometheus/examples/grpc-server-with-prometheus/protobuf/service.proto

syntax="proto3";

package proto;

service DemoService {
    rpc SayHello(HelloRequest) returns (HelloResponse) {}
}

message HelloRequest {
    string name = 1;
}

message HelloResponse {
    string message = 1;
}