Firebase Auth Persistance in React Native

Question

I'm using Firebase email + pw sign in for my React Native application, but the login doesn't seem to persist after the app is closed and reopened. I read in the documentation that the default is to persist, so I'm not sure why it's not behaving that way?

I'm using the following on componentWillMount:

this.state.dbh.auth().onAuthStateChanged(function(user) {
        if (user) {
            this.state = {
                user: user
            }
        }

I'm also using Expo to develop - would this have an effect on persisting the login?

Answer 1

This is a regression introduced in Firebase v4.5.1 as described here .

Solution:

1. Downgrade to Firebase v4.5.0
2. Restart Expo with npm start -- --reset-cache

Edit:

The issue is fixed in Firebase v4.5.2 .

1. Upgrade to Firebase v4.5.2

2. Change Firebase import

    // from import * as firebase from 'firebase/app'; import 'firebase/auth'; // to import firebase from 'firebase'; 

As described here .