Handling App Store Promo Codes

You can display a sheet that enables users to redeem subscription offer codes that you configure in App Store Connect by using the following code

SKPaymentQueue.default().presentCodeRedemptionSheet()

If you are checking the status of the subscriptions using the permissions everything is handled transparently by Glassfy, but if you want to be notified when a purchase is completed successfully you need to implement a delegate as in the following example.

@main
class AppDelegate: [...], Glassfy.PurchaseDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        Glassfy.initialize(apiKey: "YOUR_API_KEY")
        Glassfy.setPurchaseDelegate(self)
        [...]
    }

    func didPurchaseProduct(transaction: Glassfy.Transaction) {
        // handle transation
        // see transaction documentation here https://docs.glassfy.io/docs/transaction
    }
}

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