what you've just described is very similar to the data management side of the platform I'm building. I can confirm that given event sourcing, idempotent mutatio

what you've just described is very similar to the data management side of the platform I'm building. I can confirm that given event sourcing, idempotent mutation, and only adding new API endpoints, you're a long way towards what I would consider the ideal online software architecture. So many problems with API maintenance just go away with this approach.