up to the cloud - CloudKit and what we can learn from it

Up to the cloud - CloudKit and what we can learn from it will give you you a quickstart into Apple's CloudKit service and what how your networking code can improve with swift's closure syntax.

Transcript

1. up to the cloud
   CloudKit and what we can learn from it
2. CloudKit
3. ! • Apple’s Backend as a Service • Foundation for iCloud • Private and public data • Realtime + Push • Contact Discovery • Free (with limits)
5. CloudKit Databases
6. ! let cloudDatabase = CKContainer.defaultContainer().publicCloudDatabase
7. ! • NSString • NSNumber • NSData • NSDate CKRecord let record = CKRecord(recordType: CrumbRecordType) record.setObject(text, forKey: CrumbKeyText) record.setObject(location, forKey: CrumbKeyLocation) cloudDatabase.saveRecord(record){ record, error in } • CLLocation • CKReference • CKAsset • Arrays
8. ! CKQuery let query = CKQuery(recordType: "Record", predicate: 
 NSPredicate(value: true)) cloudDatabase.performQuery(query, inZoneWithID: nil, completionHandler: {records, error in //FIXME: your code here })
9. ! Trailing Closure Syntax let query = CKQuery(recordType: "Record", predicate: 
 NSPredicate(value: true)) cloudDatabase.performQuery(query, inZoneWithID: nil, completionHandler: {records, error in //FIXME: your code here }) cloudDatabase.performQuery(query, inZoneWithID: nil) {records, error in //FIXME: your code here }
10. ! • Searching for everything that NSPredicate supports • Even do radius searches! CKQuery
11. !
12. !
13. Realtime Data
14. ! CKSubscription self.crumbSubscription = 
 CKSubscription(recordType: "Record", predicate: NSPredicate(value: true), subscriptionID:"crumb-subscription", options:.FiresOnRecordCreation) self.cloudDatabase.saveSubscription(self.crumbSubscription) {subscription, error in if error { NSLog("error creating subscription: %@", [error!]) } }
15. Contact Discovery
16. ! Discover all contacts CKContainer.defaultContainer() .discoverAllContactUserInfosWithCompletionHandler { users, error in //TODO: awesome error handling } Each user as a firstname, a lastname and a unique id.
17. Pricing
18. ! free with limits • private database records count against user’s iCloud storage • public database: Start with: Storage 5GB for assets
 50MB for database Data Transfer 25MB/day for assets
 250KB/day for database Grow with every user: Storage 100MB for assets
 1MB for database Data Transfer 0.5MB/user for assets
 5KB/user for database Free up to: Storage 1PB for assets
 10TB for database Data Transfer 5TB/day for assets
 50GB/day for database
19. CloudKit learning from
20. ! class NSOperation : NSObject { func start() func cancel() var executing: Bool { get } var finished: Bool { get } ! var dependencies: [AnyObject]! { get } var completionBlock: (() -> Void)! var name: String! } NSOperation everywhere
21. ! NSOperation everywhere • dependencies • callback blocks • priority within queues • state (not started, running, canceled, failed, succeeded)
22. ! CKContainer.defaultContainer() .discoverAllContactUserInfosWithCompletionHandler { users, error in } Swift’s closure syntax • one completion block per call • error as last argument
23. CloudKit Should I use it?
24. CloudKit https://developer.apple.com/icloud ! Introducing CloudKit (208) Advanced CloudKit (231) ! http://nshipster.com/nsoperation/
25. ALL RIGHTS RESERVED. ! Die Inhalte dieses Konzeptes sowie die verwendeten Modelle sind vertraulich und urheberrechtlich geschützt. Eine Weitergabe an Dritte so wie Vervielfältigungen, die über einen persönlichen und internen Gebrauch hinausgehen, bedürfen – auch in Auszügen – einer vorherigen schriftlichen Zustimmung des Urhebers, ebenso jegliche Nutzung der Konzepte und Modelle im Zusammenhang einer Zusammenhangenarbeit mit Dritten. Die Bildrechte der verwendeten Motive liegen beim jeweiligen Inhaber. Nur zum internen Gebrauch. Wilhelmstr. 41 D-10963 Berlin ! hello@nerdgeschossberlin.de nerdgeschossberlin.de THANK YOU.