Is there a way to get the Firebase Auth user ID?

Question

I am looking to get the Auth User (s) ID from Firebase through the NodeJS or Javascript API. I added a screenshot for this so that you have an idea what I'm looking for.

Hope you guys help me with this.

Answer 1

Auth data is asynchronous in Firebase 3. Therefore, you need to wait for the event, and then you have access to the current user ID. You cannot get others.

firebase.auth().onAuthStateChanged((user) => {
  if (user) {
    console.log(user.uid);
  }
});

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

Answer 2

Firebase Firebase.getAuth():

var ref = new Firebase("https://<YOUR-FIREBASE-APP>.firebaseio.com");
var authData = ref.getAuth();

if (authData) {
  console.log("Authenticated user with uid:", authData.uid);
}

:

• Firebase.getAuth()

Answer 3

Firebase API , Auth User (s) UID.
Firebase . ,

"users": {
  "user-1": {
    "uid": "abcd..",
    ....
  },
  "user-2": {
    "uid": "abcd..",
    ....
  },
  "user-3": {
    "uid": "abcd..",
    ....
  }
}

, uid.
, !

Answer 4

, .log :

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