Get Started with GRPC

To regenerate go server code:

protoc \
  --go_out=go_calculator \
  --go_opt=paths=source_relative \
  --go-grpc_out=go_calculator \
  --go-grpc_opt=paths=source_relative \
  calculator.proto

To regenerate python client code:

python3 -m grpc_tools.protoc \
  --proto_path=. \
  --python_out=. \
  --grpc_python_out=. \
  calculator.proto