AppDelegate.swift

import UIKit
import CoreData

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

  var window: UIWindow?


  public func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
    // Override point for customization after application launch.

    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
  }

  public func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {

    return FBSDKApplicationDelegate.sharedInstance().application(
      app,
      open: url as URL!,
      sourceApplication: options[UIApplicationOpenURLOptionsKey.sourceApplication] as! String,
      annotation: options[UIApplicationOpenURLOptionsKey.annotation]
    )
  }

  public func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
    return FBSDKApplicationDelegate.sharedInstance().application(
      application,
      open: url as URL!,
      sourceApplication: sourceApplication,
      annotation: annotation)
  }
}

Thanks buddy . you are life saver

I am using this with version 4.17 of the FB SDK and getting nil for the token. Any idea on why that might be. If i use this with an older version of the FB SDK (4.15.1), it works perfectly.

use this gist: for Swift3 June 2017

https://gist.github.com/jgchoi/097b59d85d6b378a81925be93a62fef9

Good job