ios - 我应该验证什么自动续订订阅收据？

Question

我正在使用 IAP 开发应用程序的服务器端，我知道当用户进行订阅时，我需要将收据从应用程序发送到我的服务器，然后通过应用程序商店验证收据的状态，日期到期等，并向用户提供内容。

但我的问题是，我需要什么收据来检查续订状态？我的意思是，我第一次检查收据时，应用程序商店给我返回收据、状态和最新收据，这张最新收据是我下次应该用来检查状态的收据，还是应该始终使用原始收据？我一直在对它们进行测试，它们在应用程序商店中为我提供了相同的状态，但我不确定正确的做法是什么。

谢谢

Answer 1

今天，我遇到了这个问题。

关注Apple doc这里，我用这种方式来检查订阅是否过期。

+ (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。