Rewritten in go and python

Makefile

@@ -0,0 +1,20 @@
+.SILENT:
+
+proto-generate-go:
+	protoc \
+	-I./protos \
+	--go_out=./server/pkg/proto \
+	--go_opt=paths=source_relative \
+    --go-grpc_out=./server/pkg/proto \
+	--go-grpc_opt=paths=source_relative \
+	./protos/*.proto
+
+proto-generate-py:
+	python -m grpc_tools.protoc \
+	-I./protos \
+	--python_out=./recommender/proto \
+	--pyi_out=./recommender/proto \
+	--grpc_python_out=./recommender/proto \
+	./protos/*.proto
+
+proto-generate: proto-generate-go proto-generate-py