使用Node.js用firebase auth创建新用户时设置firestore文档

Question

我正在使用firebase云函数，firebase auth和FireStore。我以前在firebase数据库中做过这样的工作，但在firestore中不确定如何将users集合中的文档设置为新创建的firebase auth用户的uid。

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);

const db = admin.firestore()

exports.createUser  = functions.auth.user().onCreate(event => {

 const uid  = event.data.uid;
 console.log(uid);

 db.collection('users').doc(uid);


});

上面的内容在日志中完成ok，但是在数据库中没有设置uid。我需要在某个阶段调用set吗？

Answer 1

const collection = db.collection("users")
const userID = "12345" // ID after created the user.
collection.doc(userID).set({
    name : "userFoo", // some another information for user you could save it here.
    uid : userID     // you could save the ID as field in document.
}).then(() => {
    console.log("done")
})