Google Cloud Function using Twirp
On your local machine
protoc --proto_path=$GOPATH/src:. --twirp_out=. --go_out=. ./proto/greeter.proto
go run cmd/main.go
... split terminal ...
curl --request "POST" \
--location "http://localhost:3000/twirp/com.ekocaman.greeter.Greeter/Greet" \
--header "Content-Type:application/json" \
--data '{"name":"John"}' \
--verbose
> {"greeting":"Hello, John!"}
Deploy to Google Cloud
gcloud functions deploy Greeter --runtime go111 --trigger-http --region=us-central1