eunjiChung

public struct InAppProducts {

    public static let product = "(제품ID)"

    private static let productIdentifiers: Set<String> = [InAppProducts.product]

    public static let store = IAPHelper(productIds: InAppProducts.productIdentifiers)
}

eunjiChung

extension ViewController {

    private func initIAP() {

        NotificationCenter.default.addObserver(self, selector: #selector(handleIAPPurchase(_:)), name: .IAPHelperPurchaseNotification, object: nil)

        // IAP 불러오기
        InAppProducts.store.requestProducts { [weak self] (success, products) in
            guard let self = self, success else { return }

eunjiChung

extension IAPHelper {
  
    // 구매이력 영수증 가져오기 - 검증용
    public func getReceiptData() -> String? {
        if let appStoreReceiptURL = Bundle.main.appStoreReceiptURL,
            FileManager.default.fileExists(atPath: appStoreReceiptURL.path) {
            do {
                let receiptData = try Data(contentsOf: appStoreReceiptURL, options: .alwaysMapped)
                let receiptString = receiptData.base64EncodedString(options: [])

eunjiChung

extension IAPHelper: SKPaymentTransactionObserver {
  
    public func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
        for transaction in transactions {
            switch (transaction.transactionState) {
            case .purchased:
                complete(transaction: transaction)
                break
            case .failed:

eunjiChung

extension IAPHelper: SKProductsRequestDelegate {
    // 인앱결제 상품 리스트를 가져온다
    public func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
        let products = response.products
        productsRequestCompletionHandler?(true, products)
        clearRequestAndHandler()
    }
    
    // 상품 리스트 가져오기 실패할 경우
    public func request(_ request: SKRequest, didFailWithError error: Error) {

eunjiChung

import StoreKit

public typealias ProductsRequestCompletionHandler = (_ success: Bool, _ products: [SKProduct]?) -> Void

class IAPHelper: NSObject  {

    private let productIdentifiers: [String]
    private var productsRequest: SKProductsRequest?
    private var productsRequestCompletionHandler: ProductsRequestCompletionHandler?