DJ

Generating Go code from protobufs

• Install the tooling (once):
  • protoc (e.g., via your package manager)
  • Go plugins:
    go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
• Generate stubs for all proto files under proto/:
  • ./scripts/gen-proto.sh
• The script writes Go files next to the protos (e.g., proto/logi.pb.go, proto/logi_grpc.pb.go) using module-aware import paths defined via option go_package in each proto.
• When adding new proto files to proto/, re-run the script to regenerate the Go code.

Checking the gRPC server with grpcurl

• Without reflection (current setup for logicontroller):
  • List services/methods:
    grpcurl -plaintext -proto proto/logi.proto localhost:50051 list
grpcurl -plaintext -proto proto/logi.proto localhost:50051 list logi.v1.MusicPlayerService
  • Call methods:
    grpcurl -plaintext -proto proto/logi.proto -d '{}' localhost:50051 logi.v1.MusicPlayerService.TogglePlayPause
grpcurl -plaintext -proto proto/logi.proto -d '{}' localhost:50051 logi.v1.MusicPlayerService.Reset
• If you enable reflection in the server (add reflection.Register(grpcServer) in logicontroller), you can omit -proto and just run:
  grpcurl -plaintext localhost:50051 list and invoke methods directly.