如何检查应用程序内购买自动可续订订阅有效

Question

我正在寻求使用In App购买实施新的Auto Renewable订阅,但我不确定如何或何时检查用户当前是否已订阅.我的理解是,当用户最初订阅该应用时,可以使用购买日期和订阅日期来计算他们的订阅将持续多长时间.这个日期过后会发生什么？我们如何检查用户是否已自动续订或取消？

如果我用于restoreCompletedTransactions获取每次续订的交易和收据,系统将提示用户输入其iTunes密码.这是否意味着如果他们购买了7天的订阅,那么当应用程序检查订阅是否仍然有效时,他们必须每7天输入一次密码？

Answer 1

今天,我遇到了这个问题.

在这里关注Apple doc,我用这种方式检查订阅是否已过期.我的想法:用户APPLE REST API响应:(请求时间+过期时间)检查是否过期

+ (BOOL)checkInAppPurchaseStatus
{
    // Load the receipt from the app bundle.
    NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
    NSData *receipt = [NSData dataWithContentsOfURL:receiptURL];
    if (receipt) {
        BOOL sandbox = [[receiptURL lastPathComponent] isEqualToString:@"sandboxReceipt"];
        // Create the JSON object that describes the request
        NSError *error;
        NSDictionary *requestContents = @{
                                          @"receipt-data": [receipt base64EncodedStringWithOptions:0],@"password":@"SHARE_SECRET_CODE"
                                          };
        NSData *requestData = [NSJSONSerialization dataWithJSONObject:requestContents
                                                              options:0
                                                                error:&error];

        if (requestData) {
            // Create a POST request with the receipt data.
            NSURL *storeURL = [NSURL URLWithString:@"https://buy.itunes.apple.com/verifyReceipt"];
            if (sandbox) {
                storeURL = [NSURL URLWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"];
            }
            NSMutableURLRequest *storeRequest = [NSMutableURLRequest requestWithURL:storeURL];
            [storeRequest setHTTPMethod:@"POST"];
            [storeRequest setHTTPBody:requestData];

            BOOL rs = NO;
            //Can use sendAsynchronousRequest to request to Apple API, here I use sendSynchronousRequest
            NSError *error;
            NSURLResponse *response;
            NSData *resData = [NSURLConnection sendSynchronousRequest:storeRequest returningResponse:&response error:&error];
            if (error) {
                rs = NO;
            }
            else
            {
                NSDictionary *jsonResponse = [NSJSONSerialization JSONObjectWithData:resData options:0 error:&error];
                if (!jsonResponse) {
                    rs = NO;
                }
                else
                {
                    NSLog(@"jsonResponse:%@", jsonResponse);

                    NSDictionary *dictLatestReceiptsInfo = jsonResponse[@"latest_receipt_info"];
                    long long int expirationDateMs = [[dictLatestReceiptsInfo valueForKeyPath:@"@max.expires_date_ms"] longLongValue];
                    long long requestDateMs = [jsonResponse[@"receipt"][@"request_date_ms"] longLongValue];
                    NSLog(@"%lld--%lld", expirationDateMs, requestDateMs);
                    rs = [[jsonResponse objectForKey:@"status"] integerValue] == 0 && (expirationDateMs > requestDateMs);
                }
            }
            return rs;
        }
        else
        {
            return NO;
        }
    }
    else
    {
        return NO;
    }
}

希望这有帮助.

Answer 2

如果您想从Web服务器检查它,您可以ping它们的API,它会返回自动续订的状态以及有关上次付款的信息.

如果您在设备上,那么您可能必须调用restoreCompletedTransactions,我想要求输入密码.

我没有看到任何其他方法.我想从设备上你可以通过联系服务器端使用的相同Web服务来验证订阅？我不知道那是多少的利弊.

Answer 3

最好在拨打Apple api之前使用本地解决方案.每次应用程序运行时,最好验证本地收据,如果您需要检查用户是否具有有效订阅,您可以先从本地收据中检索购买,然后查明今天的购买是否仍然有效.

我已经实现了一个小型库,Swift以简化本地应用内应用程序收据.您可以轻松获取代表收据(InAppReceipt)的对象并检索有效购买/所有购买.

随意使用.Github链接

以下是解决问题的示例:

import TPInAppReceipt

do {
    let receipt = try InAppReceiptManager.shared.receipt()

    //retrive active auto renewable subscription for a specific product and date
    let purchase = receipt.activeAutoRenewableSubscriptionPurchases(ofProductIdentifier: "ProductName", forDate: Date())

    //retrive all auto renewable subscription purchases for a specific product
    let allAutoRenewableSubscriptionPurchases = receipt.purchases(ofProductIdentifier: "productName").filter({ return $0.isRenewableSubscription })
} catch {
    print(error)
}