Design Decision:
We have an API and a lot of microservices based on that API. Additionally we have a store of protobuf-templates (files to automate serializing certain events etc).
Currently for each service we have the API with general stuff (connection stuff etc) and then copy the 5 or 6 proto-files we need for that service, they update sometimes, so does the API, for each service, two things that need to stay updated. Which option would seem more logical to you?

a) Integrate all proto files into the API. The services then only need to update the API but they also have access to many proto files they don't need for that service (which are required for other services however)

or

b) Keep them seperated and keep manually updating the proto-files for affected services

Disclaimer: our proto files are always backwards compatible by design, both the API and protofiles change fairly frequently.

Ty