packages/in_app_purchase/lib/src/store_kit_wrappers/sk_payment_queue_wrapper.dart - mirrors/plugins - Git at Google

 // Copyright 2019 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 import 'dart:ui' show hashValues;
 import 'dart:async';
 import 'package:collection/collection.dart';
 import 'package:flutter/foundation.dart';
 import 'package:in_app_purchase/src/channel.dart';
 import 'package:json_annotation/json_annotation.dart';
 import 'package:flutter/services.dart';
 import 'sk_payment_transaction_wrappers.dart';
 import 'sk_product_wrapper.dart';

 part 'sk_payment_queue_wrapper.g.dart';

 /// A wrapper around
 /// [`SKPaymentQueue`](https://developer.apple.com/documentation/storekit/skpaymentqueue?language=objc).
 ///
 /// The payment queue contains payment related operations. It communicates with
 /// the App Store and presents a user interface for the user to process and
 /// authorize payments.
 ///
 /// Full information on using `SKPaymentQueue` and processing purchases is
 /// available at the [In-App Purchase Programming
 /// Guide](https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Introduction.html#//apple_ref/doc/uid/TP40008267).
 class SKPaymentQueueWrapper {
   SKTransactionObserverWrapper _observer;

   /// Returns the default payment queue.
   ///
   /// We do not support instantiating a custom payment queue, hence the
   /// singleton. However, you can override the observer.
   factory SKPaymentQueueWrapper() {
     return _singleton;
   }

   static final SKPaymentQueueWrapper _singleton = SKPaymentQueueWrapper._();

   SKPaymentQueueWrapper._() {
     callbackChannel.setMethodCallHandler(_handleObserverCallbacks);
   }

   /// Calls [`-[SKPaymentQueue transactions]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506026-transactions?language=objc)
   Future<List<SKPaymentTransactionWrapper>> transactions() async {
     return _getTransactionList(
         await channel.invokeListMethod<Map>('-[SKPaymentQueue transactions]'));
   }

   /// Calls [`-[SKPaymentQueue canMakePayments:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506139-canmakepayments?language=objc).
   static Future<bool> canMakePayments() async =>
       await channel.invokeMethod<bool>('-[SKPaymentQueue canMakePayments:]');

   /// Sets an observer to listen to all incoming transaction events.
   ///
   /// This should be called and set as soon as the app launches in order to
   /// avoid missing any purchase updates from the App Store. See the
   /// documentation on StoreKit's [`-[SKPaymentQueue
   /// addTransactionObserver:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506042-addtransactionobserver?language=objc).
   void setTransactionObserver(SKTransactionObserverWrapper observer) {
     _observer = observer;
   }

   /// Posts a payment to the queue.
   ///
   /// This sends a purchase request to the App Store for confirmation.
   /// Transaction updates will be delivered to the set
   /// [SkTransactionObserverWrapper].
   ///
   /// A couple preconditions need to be met before calling this method.
   ///
   ///   - At least one [SKTransactionObserverWrapper] should have been added to
   ///     the payment queue using [addTransactionObserver].
   ///   - The [payment.productIdentifier] needs to have been previously fetched
   ///     using [SKRequestMaker.startProductRequest] so that a valid `SKProduct`
   ///     has been cached in the platform side already. Because of this
   ///     [payment.productIdentifier] cannot be hardcoded.
   ///
   /// This method calls StoreKit's [`-[SKPaymentQueue addPayment:]`]
   /// (https://developer.apple.com/documentation/storekit/skpaymentqueue/1506036-addpayment?preferredLanguage=occ).
   ///
   /// Also see [sandbox
   /// testing](https://developer.apple.com/apple-pay/sandbox-testing/).
   Future<void> addPayment(SKPaymentWrapper payment) async {
     assert(_observer != null,
         '[in_app_purchase]: Trying to add a payment without an observer. One must be set using `SkPaymentQueueWrapper.setTransactionObserver` before the app launches.');
     Map requestMap = payment.toMap();
     await channel.invokeMethod<void>(
       '-[InAppPurchasePlugin addPayment:result:]',
       requestMap,
     );
   }

   /// Finishes a transaction and removes it from the queue.
   ///
   /// This method should be called after the given [transaction] has been
   /// succesfully processed and its content has been delivered to the user.
   /// Transaction status updates are propagated to [SkTransactionObserver].
   ///
   /// This will throw a Platform exception if [transaction.transactionState] is
   /// [SKPaymentTransactionStateWrapper.purchasing].
   ///
   /// This method calls StoreKit's [`-[SKPaymentQueue
   /// finishTransaction:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506003-finishtransaction?language=objc).
   Future<void> finishTransaction(
       SKPaymentTransactionWrapper transaction) async {
     await channel.invokeMethod<void>(
         '-[InAppPurchasePlugin finishTransaction:result:]',
         transaction.payment.productIdentifier);
   }

   /// Restore previously purchased transactions.
   ///
   /// Use this to load previously purchased content on a new device.
   ///
   /// This call triggers purchase updates on the set
   /// [SKTransactionObserverWrapper] for previously made transactions. This will
   /// invoke [SKTransactionObserverWrapper.restoreCompletedTransactions],
   /// [SKTransactionObserverWrapper.paymentQueueRestoreCompletedTransactionsFinished],
   /// and [SKTransactionObserverWrapper.updatedTransaction]. These restored
   /// transactions need to be marked complete with [finishTransaction] once the
   /// content is delivered, like any other transaction.
   ///
   /// The `applicationUserName` should match the original
   /// [SKPaymentWrapper.applicationUsername] used in [addPayment].
   ///
   /// This method either triggers [`-[SKPayment
   /// restoreCompletedTransactions]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506123-restorecompletedtransactions?language=objc)
   /// or [`-[SKPayment restoreCompletedTransactionsWithApplicationUsername:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1505992-restorecompletedtransactionswith?language=objc)
   /// depending on whether the `applicationUserName` is set.
   Future<void> restoreTransactions({String applicationUserName}) async {
     await channel.invokeMethod<void>(
         '-[InAppPurchasePlugin restoreTransactions:result:]',
         applicationUserName);
   }

   // Triage a method channel call from the platform and triggers the correct observer method.
   Future<dynamic> _handleObserverCallbacks(MethodCall call) {
     assert(_observer != null,
         '[in_app_purchase]: (Fatal)The observer has not been set but we received a purchase transaction notification. Please ensure the observer has been set using `setTransactionObserver`. Make sure the observer is added right at the App Launch.');
     switch (call.method) {
       case 'updatedTransactions':
         {
           final List<SKPaymentTransactionWrapper> transactions =
               _getTransactionList(call.arguments);
           return Future<void>(() {
             _observer.updatedTransactions(transactions: transactions);
           });
         }
       case 'removedTransactions':
         {
           final List<SKPaymentTransactionWrapper> transactions =
               _getTransactionList(call.arguments);
           return Future<void>(() {
             _observer.removedTransactions(transactions: transactions);
           });
         }
       case 'restoreCompletedTransactionsFailed':
         {
           SKError error = SKError.fromJson(call.arguments);
           return Future<void>(() {
             _observer.restoreCompletedTransactionsFailed(error: error);
           });
         }
       case 'paymentQueueRestoreCompletedTransactionsFinished':
         {
           return Future<void>(() {
             _observer.paymentQueueRestoreCompletedTransactionsFinished();
           });
         }
       case 'shouldAddStorePayment':
         {
           SKPaymentWrapper payment =
               SKPaymentWrapper.fromJson(call.arguments['payment']);
           SKProductWrapper product =
               SKProductWrapper.fromJson(call.arguments['product']);
           return Future<void>(() {
             if (_observer.shouldAddStorePayment(
                     payment: payment, product: product) ==
                 true) {
               SKPaymentQueueWrapper().addPayment(payment);
             }
           });
         }
       default:
         break;
     }
     return null;
   }

   // Get transaction wrapper object list from arguments.
   List<SKPaymentTransactionWrapper> _getTransactionList(dynamic arguments) {
     final List<SKPaymentTransactionWrapper> transactions = arguments
         .map<SKPaymentTransactionWrapper>(
             (dynamic map) => SKPaymentTransactionWrapper.fromJson(map))
         .toList();
     return transactions;
   }
 }

 /// Dart wrapper around StoreKit's
 /// [NSError](https://developer.apple.com/documentation/foundation/nserror?language=objc).
 @JsonSerializable(nullable: true)
 class SKError {
   SKError(
       {@required this.code, @required this.domain, @required this.userInfo});

   /// Constructs an instance of this from a key-value map of data.
   ///
   /// The map needs to have named string keys with values matching the names and
   /// types of all of the members on this class. The `map` parameter must not be
   /// null.
   factory SKError.fromJson(Map map) {
     assert(map != null);
     return _$SKErrorFromJson(map);
   }

   /// Error [code](https://developer.apple.com/documentation/foundation/1448136-nserror_codes)
   /// as defined in the Cocoa Framework.
   final int code;

   /// Error
   /// [domain](https://developer.apple.com/documentation/foundation/nscocoaerrordomain?language=objc)
   /// as defined in the Cocoa Framework.
   final String domain;

   /// A map that contains more detailed information about the error.
   ///
   /// Any key of the map must be a valid [NSErrorUserInfoKey](https://developer.apple.com/documentation/foundation/nserroruserinfokey?language=objc).
   final Map<String, dynamic> userInfo;

   @override
   bool operator ==(Object other) {
     if (identical(other, this)) {
       return true;
     }
     if (other.runtimeType != runtimeType) {
       return false;
     }
     final SKError typedOther = other;
     return typedOther.code == code &&
         typedOther.domain == domain &&
         DeepCollectionEquality.unordered()
             .equals(typedOther.userInfo, userInfo);
   }

   @override
   int get hashCode => hashValues(this.code, this.domain, this.userInfo);
 }

 /// Dart wrapper around StoreKit's
 /// [SKPayment](https://developer.apple.com/documentation/storekit/skpayment?language=objc).
 ///
 /// Used as the parameter to initiate a payment. In general, a developer should
 /// not need to create the payment object explicitly; instead, use
 /// [SKPaymentQueueWrapper.addPayment] directly with a product identifier to
 /// initiate a payment.
 @JsonSerializable(nullable: true)
 class SKPaymentWrapper {
   SKPaymentWrapper(
       {@required this.productIdentifier,
       this.applicationUsername,
       this.requestData,
       this.quantity = 1,
       this.simulatesAskToBuyInSandbox = false});

   /// Constructs an instance of this from a key value map of data.
   ///
   /// The map needs to have named string keys with values matching the names and
   /// types of all of the members on this class. The `map` parameter must not be
   /// null.
   factory SKPaymentWrapper.fromJson(Map map) {
     assert(map != null);
     return _$SKPaymentWrapperFromJson(map);
   }

   /// Creates a Map object describes the payment object.
   Map<String, dynamic> toMap() {
     return {
       'productIdentifier': productIdentifier,
       'applicationUsername': applicationUsername,
       'requestData': requestData,
       'quantity': quantity,
       'simulatesAskToBuyInSandbox': simulatesAskToBuyInSandbox
     };
   }

   /// The id for the product that the payment is for.
   final String productIdentifier;

   /// An opaque id for the user's account.
   ///
   /// Used to help the store detect irregular activity. See
   /// [applicationUsername](https://developer.apple.com/documentation/storekit/skpayment/1506116-applicationusername?language=objc)
   /// for more details. For example, you can use a one-way hash of the user’s
   /// account name on your server. Don’t use the Apple ID for your developer
   /// account, the user’s Apple ID, or the user’s plaintext account name on
   /// your server.
   final String applicationUsername;

   /// Reserved for future use.
   ///
   /// The value must be null before sending the payment. If the value is not
   /// null, the payment will be rejected.
   ///
   // The iOS Platform provided this property but it is reserved for future use.
   // We also provide this property to match the iOS platform. Converted to
   // String from NSData from ios platform using UTF8Encoding. The / default is
   // null.
   final String requestData;

   /// The amount of the product this payment is for.
   ///
   /// The default is 1. The minimum is 1. The maximum is 10.
   final int quantity;

   /// Produces an "ask to buy" flow in the sandbox if set to true. Default is
   /// false.
   ///
   /// See https://developer.apple.com/in-app-purchase/ for a guide on Sandbox
   /// testing.
   final bool simulatesAskToBuyInSandbox;

   @override
   bool operator ==(Object other) {
     if (identical(other, this)) {
       return true;
     }
     if (other.runtimeType != runtimeType) {
       return false;
     }
     final SKPaymentWrapper typedOther = other;
     return typedOther.productIdentifier == productIdentifier &&
         typedOther.applicationUsername == applicationUsername &&
         typedOther.quantity == quantity &&
         typedOther.simulatesAskToBuyInSandbox == simulatesAskToBuyInSandbox &&
         typedOther.requestData == requestData;
   }

   @override
   int get hashCode => hashValues(
       this.productIdentifier,
       this.applicationUsername,
       this.quantity,
       this.simulatesAskToBuyInSandbox,
       this.requestData);

   @override
   String toString() => _$SKPaymentWrapperToJson(this).toString();
 }
	// Copyright 2019 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	import 'dart:ui' show hashValues;
	import 'dart:async';
	import 'package:collection/collection.dart';
	import 'package:flutter/foundation.dart';
	import 'package:in_app_purchase/src/channel.dart';
	import 'package:json_annotation/json_annotation.dart';
	import 'package:flutter/services.dart';
	import 'sk_payment_transaction_wrappers.dart';
	import 'sk_product_wrapper.dart';

	part 'sk_payment_queue_wrapper.g.dart';

	/// A wrapper around
	/// [`SKPaymentQueue`](https://developer.apple.com/documentation/storekit/skpaymentqueue?language=objc).
	///
	/// The payment queue contains payment related operations. It communicates with
	/// the App Store and presents a user interface for the user to process and
	/// authorize payments.
	///
	/// Full information on using `SKPaymentQueue` and processing purchases is
	/// available at the [In-App Purchase Programming
	/// Guide](https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Introduction.html#//apple_ref/doc/uid/TP40008267).
	class SKPaymentQueueWrapper {
	SKTransactionObserverWrapper _observer;

	/// Returns the default payment queue.
	///
	/// We do not support instantiating a custom payment queue, hence the
	/// singleton. However, you can override the observer.
	factory SKPaymentQueueWrapper() {
	return _singleton;
	}

	static final SKPaymentQueueWrapper _singleton = SKPaymentQueueWrapper._();

	SKPaymentQueueWrapper._() {
	callbackChannel.setMethodCallHandler(_handleObserverCallbacks);
	}

	/// Calls [`-[SKPaymentQueue transactions]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506026-transactions?language=objc)
	Future<List<SKPaymentTransactionWrapper>> transactions() async {
	return _getTransactionList(
	await channel.invokeListMethod<Map>('-[SKPaymentQueue transactions]'));
	}

	/// Calls [`-[SKPaymentQueue canMakePayments:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506139-canmakepayments?language=objc).
	static Future<bool> canMakePayments() async =>
	await channel.invokeMethod<bool>('-[SKPaymentQueue canMakePayments:]');

	/// Sets an observer to listen to all incoming transaction events.
	///
	/// This should be called and set as soon as the app launches in order to
	/// avoid missing any purchase updates from the App Store. See the
	/// documentation on StoreKit's [`-[SKPaymentQueue
	/// addTransactionObserver:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506042-addtransactionobserver?language=objc).
	void setTransactionObserver(SKTransactionObserverWrapper observer) {
	_observer = observer;
	}

	/// Posts a payment to the queue.
	///
	/// This sends a purchase request to the App Store for confirmation.
	/// Transaction updates will be delivered to the set
	/// [SkTransactionObserverWrapper].
	///
	/// A couple preconditions need to be met before calling this method.
	///
	/// - At least one [SKTransactionObserverWrapper] should have been added to
	/// the payment queue using [addTransactionObserver].
	/// - The [payment.productIdentifier] needs to have been previously fetched
	/// using [SKRequestMaker.startProductRequest] so that a valid `SKProduct`
	/// has been cached in the platform side already. Because of this
	/// [payment.productIdentifier] cannot be hardcoded.
	///
	/// This method calls StoreKit's [`-[SKPaymentQueue addPayment:]`]
	/// (https://developer.apple.com/documentation/storekit/skpaymentqueue/1506036-addpayment?preferredLanguage=occ).
	///
	/// Also see [sandbox
	/// testing](https://developer.apple.com/apple-pay/sandbox-testing/).
	Future<void> addPayment(SKPaymentWrapper payment) async {
	assert(_observer != null,
	'[in_app_purchase]: Trying to add a payment without an observer. One must be set using `SkPaymentQueueWrapper.setTransactionObserver` before the app launches.');
	Map requestMap = payment.toMap();
	await channel.invokeMethod<void>(
	'-[InAppPurchasePlugin addPayment:result:]',
	requestMap,
	);
	}

	/// Finishes a transaction and removes it from the queue.
	///
	/// This method should be called after the given [transaction] has been
	/// succesfully processed and its content has been delivered to the user.
	/// Transaction status updates are propagated to [SkTransactionObserver].
	///
	/// This will throw a Platform exception if [transaction.transactionState] is
	/// [SKPaymentTransactionStateWrapper.purchasing].
	///
	/// This method calls StoreKit's [`-[SKPaymentQueue
	/// finishTransaction:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506003-finishtransaction?language=objc).
	Future<void> finishTransaction(
	SKPaymentTransactionWrapper transaction) async {
	await channel.invokeMethod<void>(
	'-[InAppPurchasePlugin finishTransaction:result:]',
	transaction.payment.productIdentifier);
	}

	/// Restore previously purchased transactions.
	///
	/// Use this to load previously purchased content on a new device.
	///
	/// This call triggers purchase updates on the set
	/// [SKTransactionObserverWrapper] for previously made transactions. This will
	/// invoke [SKTransactionObserverWrapper.restoreCompletedTransactions],
	/// [SKTransactionObserverWrapper.paymentQueueRestoreCompletedTransactionsFinished],
	/// and [SKTransactionObserverWrapper.updatedTransaction]. These restored
	/// transactions need to be marked complete with [finishTransaction] once the
	/// content is delivered, like any other transaction.
	///
	/// The `applicationUserName` should match the original
	/// [SKPaymentWrapper.applicationUsername] used in [addPayment].
	///
	/// This method either triggers [`-[SKPayment
	/// restoreCompletedTransactions]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1506123-restorecompletedtransactions?language=objc)
	/// or [`-[SKPayment restoreCompletedTransactionsWithApplicationUsername:]`](https://developer.apple.com/documentation/storekit/skpaymentqueue/1505992-restorecompletedtransactionswith?language=objc)
	/// depending on whether the `applicationUserName` is set.
	Future<void> restoreTransactions({String applicationUserName}) async {
	await channel.invokeMethod<void>(
	'-[InAppPurchasePlugin restoreTransactions:result:]',
	applicationUserName);
	}

	// Triage a method channel call from the platform and triggers the correct observer method.
	Future<dynamic> _handleObserverCallbacks(MethodCall call) {
	assert(_observer != null,
	'[in_app_purchase]: (Fatal)The observer has not been set but we received a purchase transaction notification. Please ensure the observer has been set using `setTransactionObserver`. Make sure the observer is added right at the App Launch.');
	switch (call.method) {
	case 'updatedTransactions':
	{
	final List<SKPaymentTransactionWrapper> transactions =
	_getTransactionList(call.arguments);
	return Future<void>(() {
	_observer.updatedTransactions(transactions: transactions);
	});
	}
	case 'removedTransactions':
	{
	final List<SKPaymentTransactionWrapper> transactions =
	_getTransactionList(call.arguments);
	return Future<void>(() {
	_observer.removedTransactions(transactions: transactions);
	});
	}
	case 'restoreCompletedTransactionsFailed':
	{
	SKError error = SKError.fromJson(call.arguments);
	return Future<void>(() {
	_observer.restoreCompletedTransactionsFailed(error: error);
	});
	}
	case 'paymentQueueRestoreCompletedTransactionsFinished':
	{
	return Future<void>(() {
	_observer.paymentQueueRestoreCompletedTransactionsFinished();
	});
	}
	case 'shouldAddStorePayment':
	{
	SKPaymentWrapper payment =
	SKPaymentWrapper.fromJson(call.arguments['payment']);
	SKProductWrapper product =
	SKProductWrapper.fromJson(call.arguments['product']);
	return Future<void>(() {
	if (_observer.shouldAddStorePayment(
	payment: payment, product: product) ==
	true) {
	SKPaymentQueueWrapper().addPayment(payment);
	}
	});
	}
	default:
	break;
	}
	return null;
	}

	// Get transaction wrapper object list from arguments.
	List<SKPaymentTransactionWrapper> _getTransactionList(dynamic arguments) {
	final List<SKPaymentTransactionWrapper> transactions = arguments
	.map<SKPaymentTransactionWrapper>(
	(dynamic map) => SKPaymentTransactionWrapper.fromJson(map))
	.toList();
	return transactions;
	}
	}

	/// Dart wrapper around StoreKit's
	/// [NSError](https://developer.apple.com/documentation/foundation/nserror?language=objc).
	@JsonSerializable(nullable: true)
	class SKError {
	SKError(
	{@required this.code, @required this.domain, @required this.userInfo});

	/// Constructs an instance of this from a key-value map of data.
	///
	/// The map needs to have named string keys with values matching the names and
	/// types of all of the members on this class. The `map` parameter must not be
	/// null.
	factory SKError.fromJson(Map map) {
	assert(map != null);
	return _$SKErrorFromJson(map);
	}

	/// Error [code](https://developer.apple.com/documentation/foundation/1448136-nserror_codes)
	/// as defined in the Cocoa Framework.
	final int code;

	/// Error
	/// [domain](https://developer.apple.com/documentation/foundation/nscocoaerrordomain?language=objc)
	/// as defined in the Cocoa Framework.
	final String domain;

	/// A map that contains more detailed information about the error.
	///
	/// Any key of the map must be a valid [NSErrorUserInfoKey](https://developer.apple.com/documentation/foundation/nserroruserinfokey?language=objc).
	final Map<String, dynamic> userInfo;

	@override
	bool operator ==(Object other) {
	if (identical(other, this)) {
	return true;
	}
	if (other.runtimeType != runtimeType) {
	return false;
	}
	final SKError typedOther = other;
	return typedOther.code == code &&
	typedOther.domain == domain &&
	DeepCollectionEquality.unordered()
	.equals(typedOther.userInfo, userInfo);
	}

	@override
	int get hashCode => hashValues(this.code, this.domain, this.userInfo);
	}

	/// Dart wrapper around StoreKit's
	/// [SKPayment](https://developer.apple.com/documentation/storekit/skpayment?language=objc).
	///
	/// Used as the parameter to initiate a payment. In general, a developer should
	/// not need to create the payment object explicitly; instead, use
	/// [SKPaymentQueueWrapper.addPayment] directly with a product identifier to
	/// initiate a payment.
	@JsonSerializable(nullable: true)
	class SKPaymentWrapper {
	SKPaymentWrapper(
	{@required this.productIdentifier,
	this.applicationUsername,
	this.requestData,
	this.quantity = 1,
	this.simulatesAskToBuyInSandbox = false});

	/// Constructs an instance of this from a key value map of data.
	///
	/// The map needs to have named string keys with values matching the names and
	/// types of all of the members on this class. The `map` parameter must not be
	/// null.
	factory SKPaymentWrapper.fromJson(Map map) {
	assert(map != null);
	return _$SKPaymentWrapperFromJson(map);
	}

	/// Creates a Map object describes the payment object.
	Map<String, dynamic> toMap() {
	return {
	'productIdentifier': productIdentifier,
	'applicationUsername': applicationUsername,
	'requestData': requestData,
	'quantity': quantity,
	'simulatesAskToBuyInSandbox': simulatesAskToBuyInSandbox
	};
	}

	/// The id for the product that the payment is for.
	final String productIdentifier;

	/// An opaque id for the user's account.
	///
	/// Used to help the store detect irregular activity. See
	/// [applicationUsername](https://developer.apple.com/documentation/storekit/skpayment/1506116-applicationusername?language=objc)
	/// for more details. For example, you can use a one-way hash of the user’s
	/// account name on your server. Don’t use the Apple ID for your developer
	/// account, the user’s Apple ID, or the user’s plaintext account name on
	/// your server.
	final String applicationUsername;

	/// Reserved for future use.
	///
	/// The value must be null before sending the payment. If the value is not
	/// null, the payment will be rejected.
	///
	// The iOS Platform provided this property but it is reserved for future use.
	// We also provide this property to match the iOS platform. Converted to
	// String from NSData from ios platform using UTF8Encoding. The / default is
	// null.
	final String requestData;

	/// The amount of the product this payment is for.
	///
	/// The default is 1. The minimum is 1. The maximum is 10.
	final int quantity;

	/// Produces an "ask to buy" flow in the sandbox if set to true. Default is
	/// false.
	///
	/// See https://developer.apple.com/in-app-purchase/ for a guide on Sandbox
	/// testing.
	final bool simulatesAskToBuyInSandbox;

	@override
	bool operator ==(Object other) {
	if (identical(other, this)) {
	return true;
	}
	if (other.runtimeType != runtimeType) {
	return false;
	}
	final SKPaymentWrapper typedOther = other;
	return typedOther.productIdentifier == productIdentifier &&
	typedOther.applicationUsername == applicationUsername &&
	typedOther.quantity == quantity &&
	typedOther.simulatesAskToBuyInSandbox == simulatesAskToBuyInSandbox &&
	typedOther.requestData == requestData;
	}

	@override
	int get hashCode => hashValues(
	this.productIdentifier,
	this.applicationUsername,
	this.quantity,
	this.simulatesAskToBuyInSandbox,
	this.requestData);

	@override
	String toString() => _$SKPaymentWrapperToJson(this).toString();
	}