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feat: Add Objective-C bridge for Kotlin Multiplatform with OpenIapSerialization
- Add @objc extension methods with completion handler wrappers for all OpenIAP APIs - Use OpenIapSerialization helpers for type conversions - Convert Product/Purchase enums to dictionaries for Kotlin interop - Support for products, purchases, subscriptions, and transactions - Enable seamless Kotlin/Native integration via cinterop
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‎Sources/OpenIapModule+ObjC.swift‎

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import Foundation
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import StoreKit
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// MARK: - Objective-C Bridge for Kotlin Multiplatform
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@available(iOS 15.0, macOS 14.0, *)
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@objc public extension OpenIapModule {
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// MARK: - Connection Management
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@objc func initConnectionWithCompletion(_ completion: @escaping (Bool, Error?) -> Void) {
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Task {
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do {
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let result = try await initConnection()
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completion(result, nil)
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} catch {
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completion(false, error)
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}
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}
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}
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@objc func endConnectionWithCompletion(_ completion: @escaping (Bool, Error?) -> Void) {
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Task {
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do {
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let result = try await endConnection()
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completion(result, nil)
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} catch {
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completion(false, error)
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}
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}
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}
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// MARK: - Product Management
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@objc func fetchProductsWithSkus(
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_ skus: [String],
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type: String?,
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completion: @escaping ([Any]?, Error?) -> Void
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) {
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Task {
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do {
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let productType = type.flatMap { ProductQueryType(rawValue: $0) }
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let request = ProductRequest(skus: skus, type: productType)
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let result = try await fetchProducts(request)
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switch result {
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case .products(let products):
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// Extract ProductIOS from Product enum and convert to dictionaries
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let productIOS = (products ?? []).compactMap { product -> ProductIOS? in
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guard case let .productIos(value) = product else { return nil }
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return value
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}
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print("[OpenIAP] Fetched \(productIOS.count) products")
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let dictionaries = productIOS.map { OpenIapSerialization.encode($0) }
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completion(dictionaries, nil)
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case .subscriptions(let subscriptions):
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// Extract ProductSubscriptionIOS from ProductSubscription enum and convert to dictionaries
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let subscriptionIOS = (subscriptions ?? []).compactMap { subscription -> ProductSubscriptionIOS? in
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guard case let .productSubscriptionIos(value) = subscription else { return nil }
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return value
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}
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print("[OpenIAP] Fetched \(subscriptionIOS.count) subscriptions")
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let dictionaries = subscriptionIOS.map { OpenIapSerialization.encode($0) }
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completion(dictionaries, nil)
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}
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} catch {
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completion(nil, error)
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}
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}
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}
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@objc func getPromotedProductIOSWithCompletion(_ completion: @escaping (Any?, Error?) -> Void) {
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Task {
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do {
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let product = try await getPromotedProductIOS()
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if let productIOS = product {
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// Convert ProductIOS to dictionary
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let dictionary = OpenIapSerialization.encode(productIOS)
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completion(dictionary, nil)
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} else {
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completion(nil, nil)
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}
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} catch {
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completion(nil, error)
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}
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}
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}
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// MARK: - Purchase Management
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@objc func requestPurchaseWithSku(
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_ sku: String,
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quantity: Int,
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type: String?,
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completion: @escaping (Any?, Error?) -> Void
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) {
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Task {
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do {
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let productType = type.flatMap { ProductQueryType(rawValue: $0) } ?? .inApp
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let iosProps = RequestPurchaseIosProps(
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andDangerouslyFinishTransactionAutomatically: nil,
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appAccountToken: nil,
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quantity: quantity,
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sku: sku,
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withOffer: nil
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)
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let props = RequestPurchaseProps(
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request: .purchase(
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RequestPurchasePropsByPlatforms(android: nil, ios: iosProps)
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),
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type: productType
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)
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let result = try await requestPurchase(props)
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switch result {
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case .purchase(let purchase):
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let dictionary = OpenIapSerialization.purchase(purchase)
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completion(dictionary, nil)
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case .purchases(let purchases):
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if let firstPurchase = purchases?.first {
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let dictionary = OpenIapSerialization.purchase(firstPurchase)
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completion(dictionary, nil)
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} else {
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completion(nil, nil)
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}
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case .none:
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completion(nil, nil)
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}
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} catch {
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completion(nil, error)
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}
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}
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}
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@objc func restorePurchasesWithCompletion(_ completion: @escaping (Error?) -> Void) {
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Task {
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do {
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try await restorePurchases()
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completion(nil)
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} catch {
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completion(error)
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}
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}
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}
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@objc func getAvailablePurchasesWithCompletion(_ completion: @escaping ([Any]?, Error?) -> Void) {
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Task {
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do {
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let purchases = try await getAvailablePurchases(nil)
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let dictionaries = OpenIapSerialization.purchases(purchases)
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completion(dictionaries, nil)
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} catch {
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completion(nil, error)
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}
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}
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}
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// MARK: - Transaction Management
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@objc func finishTransactionWithPurchaseId(
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_ purchaseId: String,
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productId: String,
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isConsumable: Bool,
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completion: @escaping (Error?) -> Void
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) {
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Task {
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do {
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let purchaseInput = PurchaseInput(
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id: purchaseId,
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ids: nil,
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isAutoRenewing: false,
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platform: .ios,
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productId: productId,
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purchaseState: .purchased,
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purchaseToken: nil,
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quantity: 1,
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transactionDate: Date().timeIntervalSince1970
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)
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try await finishTransaction(purchase: purchaseInput, isConsumable: isConsumable)
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completion(nil)
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} catch {
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completion(error)
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}
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}
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}
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@objc func getPendingTransactionsIOSWithCompletion(_ completion: @escaping ([Any]?, Error?) -> Void) {
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Task {
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do {
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let transactions = try await getPendingTransactionsIOS()
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let dictionaries = OpenIapSerialization.purchases(transactions)
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completion(dictionaries, nil)
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} catch {
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completion(nil, error)
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}
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}
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}
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@objc func clearTransactionIOSWithCompletion(_ completion: @escaping (Bool, Error?) -> Void) {
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Task {
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do {
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let result = try await clearTransactionIOS()
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completion(result, nil)
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} catch {
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completion(false, error)
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}
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}
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}
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// MARK: - Validation
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@objc func getReceiptDataIOSWithCompletion(_ completion: @escaping (String?, Error?) -> Void) {
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Task {
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do {
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let receipt = try await getReceiptDataIOS()
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completion(receipt, nil)
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} catch {
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completion(nil, error)
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}
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}
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}
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// MARK: - Store Information
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@objc func getStorefrontIOSWithCompletion(_ completion: @escaping (String?, Error?) -> Void) {
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Task {
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do {
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let storefront = try await getStorefrontIOS()
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completion(storefront, nil)
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} catch {
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completion(nil, error)
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}
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}
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}
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// MARK: - Subscription Management
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@objc func getActiveSubscriptionsWithCompletion(_ completion: @escaping ([Any]?, Error?) -> Void) {
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Task {
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do {
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let subscriptions = try await getActiveSubscriptions(nil)
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let dictionaries = subscriptions.map { OpenIapSerialization.encode($0) }
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completion(dictionaries, nil)
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} catch {
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completion(nil, error)
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}
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}
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}
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// MARK: - UI
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@objc func presentCodeRedemptionSheetIOSWithCompletion(_ completion: @escaping (Bool, Error?) -> Void) {
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Task {
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do {
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let result = try await presentCodeRedemptionSheetIOS()
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completion(result, nil)
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} catch {
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completion(false, error)
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}
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}
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}
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@objc func showManageSubscriptionsIOSWithCompletion(_ completion: @escaping ([Any]?, Error?) -> Void) {
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Task {
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do {
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let purchases = try await showManageSubscriptionsIOS()
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let dictionaries = OpenIapSerialization.purchases(purchases)
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completion(dictionaries, nil)
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} catch {
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completion(nil, error)
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}
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}
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}
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}

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