Install Optimizely Swift

AppDelegate.swift

import UIKit
import Optimizely

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    // Build OptimizelyClient
    let optimizely = OptimizelyClient(sdkKey: "REPLACE_WITH_SDK_KEY", periodicDownloadInterval: 30)

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        
        optimizely.start { result in
            switch result {
            case .failure(let error):
             print("Optimizely SDK initiliazation failed: \(error)")
            case .success:
             print("Optimizely SDK initialized successfully!")
            }
        }
        return true
    }
}