React Native IAP自动续订订阅检查到期时间

Question

我正在尝试使用https://www.npmjs.com/package/react-native-iap/v/4.0.8恢复并检测 iOS 上自动续订订阅的结束 通过调用 getAvailablePurchases() 我得到不同数量的每次我调用此函数时都会购买（例如 7，下次 23，然后 4..）。这对我来说毫无意义。我知道每月订阅的订阅可每 5 分钟续订一次。我的想法是购买最新的商品，然后检查收据中的过期日期。（目前我正在解析所有这些，这不是最佳实践）。另一件事是，我检测到多个具有不同交易收据的活跃购买，即使只有一个活跃的购买。

RNIap.getAvailablePurchases().then((purchases) => {
            if(purchases != undefined && purchases.length > 0){
                alert(purchases.length + ' purchases');
                purchases.forEach((purchase) => {
                    const receiptBody = {
                        'receipt-data': purchase.transactionReceipt,
                        'password': appSubscriptionId
                    };
                    RNIap.validateReceiptIos(receiptBody, true).then((result) => { // false for production
                        let from, to, lastRenewal = '';
                        if(result.status == 0){ // 0 means receipt is correct..
                            result.latest_receipt_info.forEach((info) => { 
                                if(this.dateIsInFuture(info.expires_date)){
                                    to = moment.utc(info.expires_date, "YYYY-MM-DD HH:mm:ss").toString();
                                    from = moment.utc(info.original_purchase_date, "YYYY-MM-DD HH:mm:ss").toString();
                                    lastRenewal = moment.utc(info.purchase_date, "YYYY-MM-DD HH:mm:ss").toString();
                                    this.setState({ premium: true, from: from, to: to, lastRenewal: lastRenewal});
                                }else{
                                    alert('nicht aktiv');
                                }
                            });
                        }
                    }); 
                }); 
            }else{
                alert('No purchases found');
            }
        });

Answer 1

此功能提供所有可用的购买，还receipt: purchases[0].transactionReceipt,可以返回最新的订阅。我认为它可以解决你的问题。

getAvailablePurchases = async () => {
    try {
      console.info(
        'Get available purchases (non-consumable or unconsumed consumable)',
      );
      const purchases = await RNIap.getAvailablePurchases();
      console.info('Available purchases :: ', purchases);
      if (purchases && purchases.length > 0) {
        this.setState({
          availableItemsMessage: `Got ${purchases.length} items.`,
          receipt: purchases[0].transactionReceipt,
        });

        console.log(this.state.availableItemsMessage);
      }
    } catch (err) {
      console.warn(err.code, err.message);
      Alert.alert(err.message);
    }
  };