-
Notifications
You must be signed in to change notification settings - Fork 1.4k
/
app_store_purchase_handler.dart
148 lines (139 loc) · 5.22 KB
/
app_store_purchase_handler.dart
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
import 'dart:async';
import 'package:app_store_server_sdk/app_store_server_sdk.dart';
import 'constants.dart';
import 'iap_repository.dart';
import 'products.dart';
import 'purchase_handler.dart';
/// Handles App Store purchases.
/// Uses the ITunes API to validate purchases.
/// Uses the App Store Server SDK to obtain the latest subscription status.
class AppStorePurchaseHandler extends PurchaseHandler {
final IapRepository iapRepository;
final AppStoreServerAPI appStoreServerAPI;
AppStorePurchaseHandler(
this.iapRepository,
this.appStoreServerAPI,
) {
// Poll Subscription status every 10 seconds.
Timer.periodic(Duration(seconds: 10), (_) {
_pullStatus();
});
}
final _iTunesAPI = ITunesApi(
ITunesHttpClient(
ITunesEnvironment.sandbox(),
loggingEnabled: true,
),
);
@override
Future<bool> handleNonSubscription({
required String userId,
required ProductData productData,
required String token,
}) {
return handleValidation(userId: userId, token: token);
}
@override
Future<bool> handleSubscription({
required String userId,
required ProductData productData,
required String token,
}) {
return handleValidation(userId: userId, token: token);
}
/// Handle purchase validation.
Future<bool> handleValidation({
required String userId,
required String token,
}) async {
print('AppStorePurchaseHandler.handleValidation');
final response = await _iTunesAPI.verifyReceipt(
password: appStoreSharedSecret,
receiptData: token,
);
print('response: $response');
if (response.status == 0) {
print('Successfully verified purchase');
final receipts = response.latestReceiptInfo ?? [];
for (final receipt in receipts) {
final product = productDataMap[receipt.productId];
if (product == null) {
print('Error: Unknown product: ${receipt.productId}');
continue;
}
switch (product.type) {
case ProductType.nonSubscription:
await iapRepository.createOrUpdatePurchase(NonSubscriptionPurchase(
userId: userId,
productId: receipt.productId ?? '',
iapSource: IAPSource.appstore,
orderId: receipt.originalTransactionId ?? '',
purchaseDate: DateTime.fromMillisecondsSinceEpoch(
int.parse(receipt.originalPurchaseDateMs ?? '0')),
type: product.type,
status: NonSubscriptionStatus.completed,
));
break;
case ProductType.subscription:
await iapRepository.createOrUpdatePurchase(SubscriptionPurchase(
userId: userId,
productId: receipt.productId ?? '',
iapSource: IAPSource.appstore,
orderId: receipt.originalTransactionId ?? '',
purchaseDate: DateTime.fromMillisecondsSinceEpoch(
int.parse(receipt.originalPurchaseDateMs ?? '0')),
type: product.type,
expiryDate: DateTime.fromMillisecondsSinceEpoch(
int.parse(receipt.expiresDateMs ?? '0')),
status: SubscriptionStatus.active,
));
break;
}
}
return true;
} else {
print('Error: Status: ${response.status}');
return false;
}
}
/// Request the App Store for the latest subscription status.
/// Updates all App Store subscriptions in the database.
/// NOTE: This code only handles when a subscription expires as example.
Future<void> _pullStatus() async {
print('Polling App Store');
final purchases = await iapRepository.getPurchases();
// filter for App Store subscriptions
final appStoreSubscriptions = purchases.where((element) =>
element.type == ProductType.subscription &&
element.iapSource == IAPSource.appstore);
for (final purchase in appStoreSubscriptions) {
final status =
await appStoreServerAPI.getAllSubscriptionStatuses(purchase.orderId);
// Obtain all subscriptions for the order id.
for (final subscription in status.data) {
// Last transaction contains the subscription status.
for (final transaction in subscription.lastTransactions) {
final expirationDate = DateTime.fromMillisecondsSinceEpoch(
transaction.transactionInfo.expiresDate ?? 0);
// Check if subscription has expired.
final isExpired = expirationDate.isBefore(DateTime.now());
print('Expiration Date: $expirationDate - isExpired: $isExpired');
// Update the subscription status with the new expiration date and status.
await iapRepository.updatePurchase(SubscriptionPurchase(
userId: null,
productId: transaction.transactionInfo.productId,
iapSource: IAPSource.appstore,
orderId: transaction.originalTransactionId,
purchaseDate: DateTime.fromMillisecondsSinceEpoch(
transaction.transactionInfo.originalPurchaseDate),
type: ProductType.subscription,
expiryDate: expirationDate,
status: isExpired
? SubscriptionStatus.expired
: SubscriptionStatus.active,
));
}
}
}
}
}