in-app-purchase-helper

App Store In-App-Purchase Helper

How to use

• Add StoreKitHelper.swift to your project.

• Create a String Enum in your project, based on your In-App-Purchase Product Ids in the App Store

for example;

enum IAPItem: String{
    case
    monthlySubscription = "com.example.product1.monthly",
    yearlySubscription = "com.example.product2.yearly"
    //case = "Product ID under AppStore In-App Purchases"
}

• in viewDidLoad, get your products -Do not pass this step-

override func viewDidLoad() {
    super.viewDidLoad()
    let productIds:Set = [IAPItem.monthlySubscription.rawValue,
                          IAPItem.yearlySubscription.rawValue] 
    
    StoreKitHelper.shared.getProducts(products: productIds)
}

• When you need to purchase a product, call purchase function and pass the product that you want to purchase.

StoreKitHelper.shared.purchase(productIdentifier: IAPItem.monthlySubscription.rawValue) { (transaction) in

    switch transaction.transactionState{
    case .purchased: break
    case .restored: break
    case .deferred: break
    case .failed: break
    default: break
    }

}

• If you need to restore purchases

StoreKitHelper.shared.restorePurchases { (transaction) in

    switch transaction.transactionState{
    case .purchased: break
    case .restored: break
    case .deferred: break
    case .failed: break
    default: break
    }

}