// A configuration with redirect uri and scope(s) needs to be specified
let config = TWConfig(redirectUri: "REDIRECT_URI", scopes: [TWConfig.Scope.openid])
// Initialize the Twitch object with client ID and configuration
Twitch.initialize(clientId: "CLIENT_ID", config: config)

final class MyViewController: UIViewController {

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        // This presents a web view where the user can login to his/her Twitch account.
        // After a successful login, the access token is stored automatically by the SDK
        // and you can proceed to calling the Twitch API.
        present(TWAuthViewController(delegate: self), animated: true, completion: nil)
    }
}

// If you want a callback when the access token has been successfully retrieved,
// you can implement the (optional) TWOAuthDelegate method below.
extension MyViewController: TWOAuthDelegate {
    
    func didFetchToken(_ accessToken: String) {
        print("Got an OAuth 2.0 token: \(accessToken)")
    }
}

Twitch.Games.getTopGames { result in
    // Note! It's safe to call UI updates from this block
    switch result {
    case .success(let container):
        for game in container.data {
            print(game)
        }
        break
    case .failure(let error):
        print(error.localizedDescription)
    }
}

// This prints the following:
// TWGame(id: "509658", name: "Just Chatting", boxArtUrl: "...")
// TWGame(id: "21779", name: "League of Legends", boxArtUrl: "...")
// TWGame(id: "33214", name: "Fortnite", boxArtUrl: "...")
// ...