我正在使用 Firebase Cloud Functions 来处理应用内购买的后端流程。如果我购买订阅(在 Flutter/Android 客户端上),购买流程没有问题。但是,当第一次续订发生时,我首先收到订阅已过期的实时开发人员通知,大约 50 秒后,我收到订阅已续订的新通知。
详细流程如下:
1.在客户端购买订阅(目前处于内部测试模式)
--- Google Cloud Logging 事件的开始 (hh:mm:ss):
2. 00:00:00 - 通知订阅已触发(空函数,仅打印到控制台)
3. 在Client,触发InAppPurchaseConnection purchaseUpdatedStream(Flutter),Client向后端发送数据,触发Cloud Function verifyPurchase。
4. 00:00:03 - verifyPurchase 函数执行开始
5. 00:00:05 - 收到状态 200 响应
6. 00:00:06 - 收到确认响应(状态 204)
7. 直到这里一切都好,我可以在 Firestore DB 中看到正确的数据
8. 00:04:08 - Notification Subscription Expired Triggered(后端撤销订阅,使用户没有购买任何其他服务)
订阅状态响应:
{ “startTimeMillis”:“1616129098091”,
“expiryTimeMillis”:“1616130591517”,
“autoRenewing”:false,
“priceCurrencyCode”:“KRW”,
“priceAmountMicros”:“2900000000”,
“countryCode”:“KR”,
“developerPayload” :"",
"cancelReason":0,
"userCancellationTimeMillis":"1616130398607",
"orderId":"GPA.3391-[...].3",
"purchaseType":0,
"acknowledgementState":1,
"kind ":"androidpublisher#subscriptionPurchase",
"obfuscatedExternalAccountId":"q[..]3"
}
-> 此处的取消原因说明:0. 用户取消了订阅(事实并非如此)
-> AcknowledgementState 为 1:已确认
请参阅:REST API REF 资源:SubscriptionPurchase
9. 00:05:01 - 通知订阅更新触发从这里开始一切都按预期工作,用户收到她/他支付的服务。
10. ~ 16. 00:10:01 ~ 00:35:20 - 通知订阅续订 触发 4 次,然后取消并过期(预期行为)
--- Google Cloud Logging 事件结束。
export const verifyPurchase = functions.region("asia-northeast3").https.onCall(async (data, context) => {
const {sku, purchaseToken, packageName, purchaseType} = data;
const userId: string = context.auth?.uid ?? "";
functions.logger.log(`USER ID: ${userId}`);
let result = 0;
try {
await authClient.authorize();
functions.logger.log("START TO CHECK SUBSCRIPTION OR ONE TIME PURCHASE");
if (purchaseType === PurchaseType.subscription) {
const subscription = await playDeveloperApiClient.purchases.subscriptions.get({
packageName: packageName,
subscriptionId: sku,
token: purchaseToken,
});
functions.logger.log("SUBSCRIPTION BEING PROCESSED");
if (subscription.status === 200 && subscription?.data?.paymentState === 1 || subscription?.data?.paymentState === 2) {
functions.logger.log(`SUBSCRIPTION STATUS: ${subscription.status}`);
if (!subscription.data.linkedPurchaseToken) {
const subscriptionData: any = {
"transactionId": purchaseToken,
"userId": userId,
"expirationDateMs": subscription.data.expiryTimeMillis,
"disabled": false,
"platform": "android",
"receipt": data,
"rawData": subscription.data,
};
await admin.firestore().collection("subscriptions").add(subscriptionData).then(
async (value) => {
[...user Data being updated on DB...]
);
const acknowdlegeResponse = await playDeveloperApiClient.purchases.subscriptions.acknowledge({
packageName: packageName,
subscriptionId: sku,
token: purchaseToken,
requestBody: {
},
});
functions.logger.info(`ACKNOWLEDGE RESPONSE SUBSCRIPTION: ${JSON.stringify(acknowdlegeResponse)}`);**
} else {
await subscriptionChange(purchaseToken, userId, data, subscription);
}
result = subscription.status;
}
} else {
const oneTimePurchase = await playDeveloperApiClient.purchases.products.get({
[...part for one time purchases...]
} catch (e) {
// handle error
functions.logger.error("verifyPurchase ERROR");
functions.logger.error(e);
}
functions.logger.log(`RETURN RESULT: ${result}`);
return result;
});
所以我不完全理解为什么第 8 步(过期)会发生。我将不胜感激任何帮助。