How to Use CloudKit And Integrate It Into Your Application?

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How to Use CloudKit And Integrate It Into Your Application?
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Have you ever used iCloud service? Well, in some way to store some personal data – the common use of iCloud, isn’t it?

What we’re going to learn here is how to store and share your app data using the iCloud account as a back-end storage service.

The reason why most developers are choosing this path nowadays is because it is secured.

The users’ private data are completely protected, even you, as a developer, can only access your own private database and will not be able to look at any users’ private data.

Additionally, it is an ideal option for iOS applications that use a lot of data but doesn’t require much of a server-side logic. And, Cloud kit can be used for both server, and web applications.

So today, we’re going to understand the whole process from enabling Cloudkit to dealing with structured data and interacting with Cloudkit in an iOS application with an example.

Are you ready?

Setting Up The Cloud Kit

Launch Xcode and create a new project based on the Single View Application template.

iCloudKit1

 

On the next screen, give your project a name and an organization identifier. Remember to follow Apple’s advice and use reverse domain name notation.

 

iCloudKit2

The next step is enabling iCloud and iCloudkit. Select the project in project navigator on the left side and select the target for your application from lists of targets. Also remember to verify that your developer account has the required permissions to create an App ID.

iCloudKit3

Now, open the capabilities tab and set the iCloud to on.

iCloudKit6

Once this is done, we’re going to fetch the record of the currently signed-in user.

1. Open ViewController.swift and add an import statement at the top to import the CloudKit framework.

import UIKit
import CloudKit

2. Once when you integrate CloudKit Framework then create a reference to publicCloudDatabase and CKRecordID

// Fetch Public Database
let publicDB = CKContainer.defaultContainer().publicCloudDatabase
let recordID = CKRecordID(recordName: "Student")

3. To create a new student record and for save record in publicDB

publicDB.fetchRecordWithID(recordID) { fetchedStudent, error in
let name = CKRecord(recordType: "attendence", recordID: self.recordID)
name["name"] = "Jhon"

self.publicDB.saveRecord(name) { savedRecord, error in
if error == nil {
// Perform action
} else {
// handle errors here
}
}
}

4. For read save information in publicDB

publicDB.fetchRecordWithID(recordID) { savedRecord, error in
if error == nil {
// Perform action
} else {
// handle errors here
}
}

5. If you need to update existing record then you can do it by

publicDB.fetchRecordWithID(recordID) { fetchedStudent, error in
guard let fetchedStudent = fetchedStudent else {
// handle errors here
return
}

fetchedStudent["name"] = "Jhon Nathan”

self.publicDB.saveRecord(fetchedStudent) { savedRecord, savedError in
if error == nil {
// Perform action
} else {
// handle errors here
}
}
}

As you saw, with Cloudkit, you can take your apps to the next level with this great API. if you’re facing any problem while retrieving data, you can contact Space-O Technologies, a certified mobile app development company in India.

 
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