我的功能无法正确解析吗?同样,它也不会写入Firebase到数据库.没有错误 [英] Is my function not resolving correctly? Also it won't write to firebase to the databse. No errors
问题描述
我有一个没有错误运行的云功能,但是,它不会在Promise之后写入数据库.
I have a cloud function that runs with no errors, however, it won't write to the database after Promise.all
我已经在Web浏览器中测试了此功能,并且Promise.all之后的数据似乎可以正确解析.当我将其放入云函数中时,Promise.all之后的console.log()会显示原始数据,而不是更新的数据,就好像跳过了forEach并立即解决了一样.当函数在浏览器中运行时,我没有得到这种行为.
I've tested this function in a web browser and the data seems to resolve correctly after the Promise.all. When I put this into a cloud function a console.log() after Promise.all shows the original data and not the updated data, as if it's skipping the forEach and resolving right away. I don't get this behavior when the function runs in a browser.
最重要的是,如果数据在Promise之后,则不会将其写入Firestore.所有在此之前的数据都可以正常写入.
On top of that, the data will not write to Firestore if it's after the Promise.all any data write before that goes through just fine.
exports.scheduledIndexUpdate = functions.pubsub
.schedule("every 30 minutes")
.onRun(context => {
console.log("This will be run every 30 minutes!");
var newIndex;
var getIndex = new Promise((resolve, reject) => {
admin
.firestore()
.collection("billsIndex")
.doc("GS2019Index")
.get()
.then(doc => {
if (doc.exists) {
newIndex = doc.data();
resolve(newIndex);
}
});
});
return getIndex.then(index => {
var keys = Object.keys(index);
keys.forEach(function(key) {
admin
.firestore()
.collection("billsMetaData")
.doc(key)
.get()
.then(doc => {
if (doc.exists) {
const metaData = doc.data();
let agree = 0,
disagree = 0,
neutral = 0,
somewhatAgree = 0,
somewhatDisagree = 0;
if (metaData.votes) {
if (metaData.votes.agree) {
agree = metaData.votes.agree;
}
if (metaData.votes.disagree) {
disagree = metaData.votes.disagree;
}
if (metaData.votes.neutral) {
neutral = metaData.votes.neutral;
}
if (metaData.votes.somewhatAgree) {
somewhatAgree = metaData.votes.somewhatAgree;
}
if (metaData.votes.somewhatDisagree) {
somewhatDisagree = metaData.votes.somewhatDisagree;
}
newIndex[key].userVotes =
agree + disagree + neutral + somewhatAgree + somewhatDisagree;
}
}
});
});
Promise.all(keys).then(function(result) {
admin
.firestore()
.collection("billsIndex")
.doc("GS2019Index2")
.set({
newIndex
});
console.log(newIndex);
console.log("done");
});
});
});
任何帮助都会得到帮助!
Any help would be appriciated!
推荐答案
似乎您正在尝试使用getIndex仍不可用时,请看一下异步操作...使用async/await,您可以重组代码看起来像
It seems you are trying to use getIndex when it is still not available, take a look into async operations... using async/await you can restructure you code to look something like
exports.scheduledIndexUpdate = functions.pubsub
.schedule("every 30 minutes")
.onRun(async context => {
console.log("This will be run every 30 minutes!");
var newIndex;
var getIndex = await admin.collection("billsIndex")
.doc("GS2019Index")
.get()
.then(doc => doc.exists ? doc.data() : null);
// you have you docs available here
for (let prop of getIndex) {
await admin
.firestore()
.collection("billsMetaData")
.doc(key)
.get()
.then(() => { /..,/ })
// etc
}
await admin.firestore().collection("billsIndex")
.doc("GS2019Index2")
.set({
newIndex
});
return Promise.resolve(/.../)
这样,您将强迫执行等待承诺被兑现
That way you are forcing your execution to wait until promise are resolved
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