gRCP is a little bit faster, Google created protobuff which should be easier to migrate to than gRPC, but the protocol is unreadable ( binary)... JSON has its

gRCP is a little bit faster, Google created protobuff which should be easier to migrate to than gRPC, but the protocol is unreadable ( binary)... JSON has its advantages, I prefer a feature flag when I need performance ( protobuff vs Json), http headers do the rest