Under the Sheets with iCloud and Core Data
A 2012 series taking apart how Apple's iCloud-backed Core Data sync actually worked, with example code, common failure modes, and troubleshooting guidance. Originally posted on mentalfaculty.tumblr.com. The technical specifics describe a system Apple has long since deprecated, but the design lessons informed a generation of sync frameworks.
- Under the Sheets with iCloud and Core Data: The Basics
- Under the Sheets with iCloud and Core Data: How it Works
- Under the Sheets with iCloud and Core Data: Seeding iCloud
- Under the Sheets with iCloud and Core Data: Working Code
- Under the Sheets with iCloud and Core Data: Sentinels
- Under the Sheets with iCloud and Core Data: Troubleshooting