有没有办法获得Firebase Auth用户UID？

Question

我希望通过NodeJS或Javascript API从Firebase获取Auth User(s)UID.我已附上截图,以便您知道我在寻找什么.

希望,你们帮我解决这个问题.

Answer 1

Auth数据在Firebase 3中是异步的.因此您需要等待事件,然后您才能访问当前登录用户的UID.你将无法得到其他人.如果您已经登录,它也会在应用程序打开时被调用.

firebase.auth().onAuthStateChanged((user) => {
  if (user) {
    // User logged in already or has just logged in.
    console.log(user.uid);
  } else {
    // User not logged in or has just logged out.
  }
});

https://firebase.google.com/docs/reference/js/firebase.auth.Auth#onAuthStateChanged

Answer 2

如果用户已登录,则console.log将打印出来:

if (firebase.auth().currentUser !== null) 
        console.log("user id: " + firebase.auth().currentUser.uid);

Answer 3

在服务器端，您可以使用 firebase admin sdk 获取所有用户信息：

const admin = require('firebase-admin')
var serviceAccount = require("./serviceAccountKey.json");

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
  databaseURL: "https://yourprojecturl.firebaseio.com",
});

admin.auth().listUsers().then(data=>{
    console.log(data.users)
})