Looking for logging into the Swift 3 site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Swift 3 site. After that you can login as usual with your login credentials.
https://stackoverflow.com/questions/42046101/swift-3-login-function
http://www.kaleidosblog.com/how-to-create-a-login-screen-page-in-swift-3-authenticate-an-user-and-keep-the-session-active
https://www.back4app.com/docs/ios/swift-login-tutorial
https://www.simplifiedios.net/xcode-login-screen-example/
https://www.appcoda.com/firebase-login-signup/
https://developers.facebook.com/docs/swift/login/?locale=de_DE
https://medium.com/@ali_hen/guide-using-auth0-for-facebook-login-in-swift-3-206ac052c9f7
https://medium.com/@paul.allies/ios-swift4-login-logout-branching-4cdbc1f51e2c
https://www.cocoacontrols.com/controls/login-screen-in-swift-3
http://code.i-harness.com/de/q/266ea09
http://ashishkakkad.com/2015/05/facebook-login-swift-language-ios/
https://github.com/facebook/facebook-swift-sdk/issues/172
https://www.quora.com/How-do-I-programatically-change-the-view-in-Swift-3-after-a-successful-login