const functions = require('firebase-functions');
var IAPVerifier = require('iap_verifier');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
exports.verifyReceipt = functions.database.ref('/Customers/{uid}/updateReceipt')
.onWrite(event => {
const uid = event.params.uid;
var receipt = event.data.val();
(strReceipt).toString('base64');
var client = new IAPVerifier('IAP_secretkey')
client.verifyAutoRenewReceipt(receipt, true,function(valid, msg, data){
console.log(' RECEIPT');
if(valid) {
console.log('VALID RECEIPT');
console.log('msg:' + msg);
var strData = JSON.stringify(data);
console.log('data"' + strData);
const newReceiptRef = admin.database().ref('/Customers/{uid}/');
newReceiptRef.update({'receiptData1': data});
const recVerRef = admin.database().ref('/Customers/{uid}/');
newReceiptRef.update({'updateReceipt': 0});
// update status of payment in your system
}else{
console.log('INVALID RECEIPT');
console.log('msg:' + msg);
var strData = JSON.stringify(data);
console.log('data"' + strData);
}
});
});
这是我的节点JS云功能。" UpdatereCeipt"的可能值是0和1。仅在值为1时才能运行云功能?
谢谢。
当存在特定值时,无需触发函数。
我可以想到两个选择:
- 根据
updateReceipt
值将节点写入其他分支。 - 将
if
添加到您的代码中。
第二个选项绝对是最简单的:
exports.verifyReceipt =
functions.database.ref('/Customers/{uid}/updateReceipt')
.onWrite(event => {
const uid = event.params.uid;
var receipt = event.data.val();
if (receipt.updateReceipt === 0) {
var client = new IAPVerifier('IAP_secretkey')
...
另外,您可以将更新的收据与新收据保持在单独的分支中。这样,您就可以仅为新收据触发功能。