Private data sharing using CloudKit

Question

Is there a straightforward way to share private data between two or more users using CloudKit?

Public and private date are obvious, but there doesn\'t seem to be a way t

Answer 1

At WWDC 2016, Apple introduced CKShare which addresses this use case. As of Jun 13th, 2016, the beta API is public but undocumented. The sharing API is demonstrated in the WWDC 2016 video What's new with CloudKit, starting at 19:57.