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In App Purchase in Swift, with Receipt Validation
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| import UIKit | |
| import StoreKit | |
| //MARK: SKProductsRequestDelegate | |
| extension IAPHelpers : SKProductsRequestDelegate | |
| { | |
| func productsRequest(request: SKProductsRequest, didReceiveResponse response: SKProductsResponse) | |
| { | |
| if response.products.count > 0 | |
| { | |
| let validProduct : SKProduct = response.products[0] | |
| switch validProduct.productIdentifier { | |
| case PRODUCT_IDENTIFIERS.k_10_WORDS_PRODUCT_IDENTIFIER.rawValue : | |
| self.buyProduct(validProduct) | |
| case PRODUCT_IDENTIFIERS.k_20_WORDS_PRODUCT_IDENTIFIER.rawValue : | |
| self.buyProduct(validProduct) | |
| case PRODUCT_IDENTIFIERS.k_ALL_WORDS_PRODUCT_IDENTIFIER.rawValue : | |
| self.buyProduct(validProduct) | |
| default : | |
| self.alertThis("Sorry", message: "No products recieved from server", current: self.currentViewController) | |
| } | |
| } else { | |
| self.alertThis("Sorry", message: "Can't make payments, Please check in settings.", current: self.currentViewController) | |
| } | |
| } | |
| } | |
| extension IAPHelpers : SKRequestDelegate | |
| { | |
| func requestDidFinish(request: SKRequest) | |
| { | |
| } | |
| func request(request: SKRequest, didFailWithError error: NSError) | |
| { | |
| self.alertThis("Sorry", message: "\(error.localizedDescription)", current: self.currentViewController) | |
| } | |
| } | |
| //MARK: SKPaymentTransactionObserver | |
| extension IAPHelpers : SKPaymentTransactionObserver | |
| { | |
| func paymentQueue(queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) | |
| { | |
| self.handlingTransactions(transactions) | |
| } | |
| func paymentQueueRestoreCompletedTransactionsFinished(queue: SKPaymentQueue) | |
| { | |
| if queue.transactions.count == 0 | |
| { | |
| self.alertThis("Sorry", message: "You didnt make any purchase to restiore, Please do a purchase first.", current: self.currentViewController) | |
| } | |
| else | |
| { | |
| self.handlingTransactions(queue.transactions) | |
| } | |
| } | |
| func paymentQueue(queue: SKPaymentQueue, restoreCompletedTransactionsFailedWithError error: NSError) | |
| { | |
| self.alertThis("Sorry", message: "\(error.localizedDescription)", current: self.currentViewController) | |
| } | |
| } | |
| enum PRODUCT_IDENTIFIERS : String | |
| { | |
| //MARK: Product ID's | |
| case k_10_WORDS_PRODUCT_IDENTIFIER = "YOUR_PRODUCT_IDENTIFIER_10" | |
| case k_20_WORDS_PRODUCT_IDENTIFIER = "YOUR_PRODUCT_IDENTIFIER_20" | |
| case k_ALL_WORDS_PRODUCT_IDENTIFIER = "YOUR_PRODUCT_IDENTIFIER_ALL" | |
| case k_RESTORE_WORDS_PRODUCT_IDENTIFIER = "YOUR_PRODUCT_IDENTIFIER_RESTOREE" | |
| } | |
| enum USER_DEFAULTS_IDENTIFIERS : String | |
| { | |
| case TEN_WORDS_PRODUCT_IDENTIFIER = "10_WORDS_IDENTIFIER" | |
| case TWENTY_WORDS_PRODUCT_IDENTIFIER = "20_WORDS_IDENTIFIER" | |
| case ALL_WORDS_PRODUCT_IDENTIFIER = "ALL_WORDS_IDENTIFIER" | |
| } | |
| enum ReceiptURL : String | |
| { | |
| case sandbox = "https://sandbox.itunes.apple.com/verifyReceipt" | |
| case production = "https://buy.itunes.apple.com/verifyReceipt" | |
| case myServer = "your server" | |
| } | |
| protocol StoreRequestIAPPorotocol | |
| { | |
| func transactionCompletedForRequest(PRODUCT_ID : String) | |
| } | |
| class IAPHelpers: NSObject { | |
| //MARK: Variables | |
| var delegate : StoreRequestIAPPorotocol! | |
| var currentViewController : UIViewController! | |
| //MARK: - Creating sharedInstance | |
| class var sharedInstance: IAPHelpers { | |
| struct Static { | |
| static var sharedInstance: IAPHelpers? | |
| static var token: dispatch_once_t = 0 | |
| } | |
| dispatch_once(&Static.token) { | |
| Static.sharedInstance = IAPHelpers() | |
| } | |
| return Static.sharedInstance! | |
| } | |
| //MARK: Product Request | |
| func productRquestStarted(productReferenceName : String) | |
| { | |
| if (SKPaymentQueue.canMakePayments()) { | |
| if productReferenceName == PRODUCT_IDENTIFIERS.k_RESTORE_WORDS_PRODUCT_IDENTIFIER.rawValue | |
| { | |
| self.restorePurchases() | |
| } | |
| else | |
| { | |
| let productID : Set<String> = [productReferenceName] | |
| let productsRequest : SKProductsRequest = SKProductsRequest(productIdentifiers: productID) | |
| productsRequest.delegate = self | |
| productsRequest.start() | |
| } | |
| } else { | |
| // PRESENT A USER FOR UI about not being able to make payments. | |
| } | |
| } | |
| //MARK: Buy Product - Payment Section | |
| func buyProduct(product : SKProduct) | |
| { | |
| let payment = SKPayment(product: product) | |
| SKPaymentQueue.defaultQueue().addTransactionObserver(self) | |
| SKPaymentQueue.defaultQueue().addPayment(payment) | |
| } | |
| //MARK: Restore Transaction | |
| func restoreTransaction(transaction : SKPaymentTransaction) | |
| { | |
| self.deliverProduct(transaction.payment.productIdentifier) | |
| } | |
| //MARK: Restore Purchases | |
| func restorePurchases() | |
| { | |
| SKPaymentQueue.defaultQueue().addTransactionObserver(self) | |
| SKPaymentQueue.defaultQueue().restoreCompletedTransactions() | |
| } | |
| //MARK: - Showing UIAlertView | |
| func alertThis(title : String, message : String, current : UIViewController) | |
| { | |
| let alertView : UIAlertController = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.Alert) | |
| alertView.addAction(UIAlertAction(title: "Okay", style: UIAlertActionStyle.Default, handler: { _ in | |
| })) | |
| current.presentViewController(alertView, animated: true, completion: nil) | |
| } | |
| //MARK: Transaction Observer Handler | |
| func handlingTransactions(transactions : [AnyObject]) | |
| { | |
| for transaction in transactions { | |
| if let paymentTransaction : SKPaymentTransaction = transaction as? SKPaymentTransaction { | |
| switch paymentTransaction.transactionState { | |
| case .Purchasing : | |
| print("Purchasing") | |
| case .Purchased : | |
| self.deliverProduct(paymentTransaction.payment.productIdentifier) | |
| SKPaymentQueue.defaultQueue().finishTransaction(transaction as! SKPaymentTransaction) | |
| break | |
| case .Failed: | |
| SKPaymentQueue.defaultQueue().finishTransaction(transaction as! SKPaymentTransaction) | |
| break | |
| case .Restored: | |
| print("Restored") | |
| self.restoreTransaction(paymentTransaction) | |
| break | |
| default: | |
| print("DEFAULT") | |
| // PRESENT A USER FOR UI about not being able to make payments. | |
| break | |
| } | |
| } | |
| } | |
| } | |
| //MARK: Deliver Product | |
| func deliverProduct(product : String) | |
| { | |
| self.validateReceipt { status in | |
| if status | |
| { | |
| self.delegate.transactionCompletedForRequest(product) | |
| } | |
| else | |
| { | |
| print("Something bad happened") | |
| } | |
| } | |
| } | |
| //MARK: Receipt Validation | |
| func validateReceipt(completion : (status : Bool) -> ()) { | |
| let receiptUrl = NSBundle.mainBundle().appStoreReceiptURL | |
| let receipt: NSData = NSData(contentsOfURL: receiptUrl!)! | |
| let receiptdata: NSString = receipt.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0)) | |
| let dict = ["receipt-data" : receiptdata] | |
| let jsonData = try! NSJSONSerialization.dataWithJSONObject(dict, options: NSJSONWritingOptions(rawValue: 0)) | |
| let request = NSMutableURLRequest(URL: NSURL(string: ReceiptURL.sandbox.rawValue)!) | |
| let session = NSURLSession.sharedSession() | |
| request.HTTPMethod = "POST" | |
| request.HTTPBody = jsonData | |
| let task = session.dataTaskWithRequest(request, completionHandler: { data, response, error in | |
| if let dataR = data | |
| { | |
| self.handleData(dataR, completion: { status in | |
| completion(status: status) | |
| }) | |
| } | |
| }) | |
| task.resume() | |
| } | |
| func handleData(responseDatas : NSData, completion : (status : Bool) -> ()) | |
| { | |
| if let json = try! NSJSONSerialization.JSONObjectWithData(responseDatas, options: NSJSONReadingOptions.MutableLeaves) as? NSDictionary | |
| { | |
| if let value = json.valueForKeyPath("status") as? Int | |
| { | |
| if value == 0 | |
| { | |
| completion(status: true) | |
| } | |
| else | |
| { | |
| completion(status: false) | |
| } | |
| } | |
| else | |
| { | |
| completion(status: false) | |
| } | |
| } | |
| } | |
| } | |
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Hi,
Where do i need to call the function : validateReceipt ?
I mean in viewDidload?
thanks