OpenGoogleSignInSDK

OpenGoogleSignInSDK is an open-source library which takes care of Google Sign-In flow using OAuth 2.0 and can be used as an alternative to official GoogleSignInSDK.

Installation

Swift Package Manager

SDK can be installed using SPM. Just add following line into your Package.swift:

.package(url: "https://github.com/AckeeCZ/OpenGoogleSignInSDK.git", .upToNextMajor(from: "1.0.0")),

or use the Xcode File -> Swift Packages -> Add Package Dependency and paste the URL of GitHub repository.

CocoaPods, Carthage

🔜👀

Integration guide

Add a URL scheme to your project

Google Sign-In flow requires a URL scheme to be added to your project:

1. Open your project configuration, select your app from the Targets section, then select the Info tab and expand the URL Types section.
2. Click the + button, and add your reversed client ID as a URL scheme. The reversed client ID is your client ID with the order of the dot-delimited fields reversed, like on the picture below:

Set OAuth 2.0 client ID

First, you need to visit Google API Console to obtain OAuth 2.0 client ID of your project. After obtaining the client ID, you need to configure the clientID property of OpenGoogleSignIn shared instance in your app delegate:

func application(_ application: UIApplication,
                 didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
  OpenGoogleSignIn.shared.clientID = "YOUR_CLIENT_ID"

  return true
}

Set presenting view controller

In view controller which will present Google Sign-In flow, set the presentingViewController property of OpenGoogleSignIn shared instance inside viewDidLoad() lifecycle method:

override func viewDidLoad() {
  super.viewDidLoad()

  OpenGoogleSignIn.shared.presentingViewController = self
}

Handle Sign-In process

To handle Sign-In process, you need to set OpenGoogleSignInDelegate and implement the protocol:

OpenGoogleSignIn.shared.delegate = self

...
...
...

func sign(didSignInFor user: GoogleUser?, withError error: GoogleSignInError?) {
  // Signed in user or error received here.
  // Perform any required operations.
}

Author

Ackee team

License

OpenGoogleSignInSDK is available under the MIT license. See the LICENSE file for more info.