从Firestore提取数据时使用async forEach循环 [英] Use async forEach loop while fetching data from firestore

问题描述

我有一些类似的Firestore数据:

I have firestore data somewhat like this:

"Support": { "userid":"abcdxyz", "message": "hello" }

"Support": { "userid":"abcdxyz", "message": "hello" }

我正在使用nodejs来获取我的数据，我还想显示发送此消息的人的电子邮件地址和姓名.所以我正在使用以下功能:

I am using nodejs to fetch my data and I also want to show the email address and name of the person who sent this message. So I am using following function:

database.collection("support").get().then(async function (collections) {
var data = [];
console.log("data collected");
collections.forEach(async function (collection) {
    var temp = {};
    var collectionData = collection.data()
    var userInfo = await getUserDetails(collectionData.userId)
    temp.name = userInfo.name
    temp.supportMessage = collectionData.supportMessage
    data.push(temp)
    console.log("data pushed")
});
    console.log("data posted")
    return res.status(200).end(JSON.stringify({ status: 200, message: "Support Message fetched successfully.", data: data }))
}).catch(error => {
    return res.status(500).end(JSON.stringify({ status: 500, message: "Error: " + error }))
});

以下是日志的顺序:收集的数据，发布的数据，推送的数据

Here the sequence of logs is following: data collected, data posted, data pushed

我想要这样的顺序:收集的数据，推送的数据(x次)，发布的数据

I want the sequence like this: data collected, data pushed (x times), data posted

推荐答案

我在@estus评论的帮助下解决了我的答案.

I solved my answer with the help of @estus comment.

信用:@estus

var data = [];
var tempCollection = [];
collections.forEach(collection => {
    tempCollection.push(collection.data());
});
for (collection of tempCollection) {
    var temp = {};
    var userInfo = await getUserDetails(collection.userId)
    temp.name = userInfo.name
    temp.supportMessage = collection.supportMessage
    data.push(temp)
}

它很容易解决了我的问题.

It solved my problem very easily.

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