How to use the getIdToken() auth method in firebase version 9?

user_12154544 0
Viewed 1537

How to use the getIdToken() auth method in firebase version 9?

It works like this below in version 8

import firebase from "firebase";

const token = await firebase.auth().currentUser.getIdToken(/* forceRefresh */ false);

I tried this in version 9 but it is not working

import { getIdToken } from "firebase/auth";

const token = await getIdToken(/* forceRefresh */ false);

I also tried this below and it is not working

import { getAuth } from "firebase/auth";

const auth = getAuth();
const { currentUser } = auth;

const token = await currentUser.getIdToken(/* forceRefresh */ false);
firebase-authentication firebase react-native javascript
2 Answers

The getIdToken() function takes User as parameter and not the refreshToken boolean as in name-spaced SDK.

import { getIdToken, onAuthStateChanged } from "firebase/auth";

onAuthStateChanged(auth, async (user) => {
  if (user) {
    const token = await getIdToken(user);
  }
});

As far as the error goes, getAuth() returns auth instance but user's auth state might now have loaded yet. Try running the same in onAuthStateChanged or adding a null check as suggested by @Frank.

user_131306970

Looks like getIdToken() function takes two arguments in the latest version (9.6.6): user and a boolean. So, this is the working code in my case:

import { getAuth, getIdToken } from "firebase/auth"

const auth = getAuth()
const { currentUser } = auth
const token = await getIdToken(currentUser, true)
user_59644890
Related