Firebase 3.x - Facebook Login

Question

InFirebase 2.5.1, I used to do this, and it was working:

@IBAction func facebookLoginDidTouch(sender: AnyObject) {

   let facebookLogin = FBSDK         


        

Answer 1

After you successfully login with facebook and get user data back ... you have to add firebase authentication stuff like

 @IBAction func facebookLoginDidTouch(sender: AnyObject) {

   let facebookLogin = FBSDKLoginManager() 

   facebookLogin.logInWithReadPermissions(["public_profile", "email"], fromViewController: self, handler: {
    (facebookResult, facebookError) -> Void in
        if facebookError != nil {
            print("Facebook login failed. Error \(facebookError)")
        } else if facebookResult.isCancelled {
            print("Facebook login was cancelled.")
        } else {
            // your firebase authentication stuff..

            let credential = FIRFacebookAuthProvider.credentialWithAccessToken(FBSDKAccessToken.currentAccessToken().tokenString)

            FIRAuth.auth()?.signInWithCredential(credential) { (user, error) in
            if error != nil {
                  print("Login failed. \(error)")
            } else {
                 print("Logged in!")

            }
          })
        }
   })
}