> I hope at some point someone builds more gRPC-specific API recommendations that includes streaming and ways to do a better bulk data transfers. (ex: stream-with-filters)

I'm currently working on migrating a system from the Google Adwords API(being depricated in some months) and porting everything to their new Google ads API(a massive step up) and to be honest everything described here is incredibly familiar. Overall that's exactly how it works.