LoginModule This is Login Model for Swift4 If you want to use LoginModel, Install Pod. Firebase connect 1. CocoaPods for LoginModel. pod 'Firebase/Core' pod 'Firebase/Auth' pod 'GoogleSignIn' pod 'Firebase/Database' 2. How to Connect Firebase. Go Documents 3. How to Connect Facebook. Go Documents 4. How to Connect Kakao. Go Documents 5. How to Connect Google. Go Documents 6. Detail Reference Document. KAKAO GOOGLE FACEBOOK