Sentry-AppDelegate.swift

import Sentry

func application(_ application: UIApplication, 
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

    // Create a Sentry client and start crash handler
    do {
        Client.shared = try Client(dsn: "yourDNS")
        try Client.shared?.startCrashHandler()
    } catch let error {
        print("\(error)")
    }

    return true
}