firebase js sdk auth and react native - login state does not persist on app restart

[Florian Norbert Bepunkt]

Summary:

User's auth state does not persist on app restart.

My situation:

I have a blank react native app (current react native version, fresh install) and installed firebase js sdk via

react-native init firebaseTest
npm i firebase --save

in my index.ios.js file I added a auth state listener and a login function

constructor(props) {
    super(props);
 
    this.state = {};


    firebase.auth().onAuthStateChanged(function(user) {
      if (user) {
        console.log('user logged in: ', user);
      } else {
        console.log('not logged in…');
      }
    });
  }


  login() {
    firebase.auth().signInWithEmailAndPassword('te...@test.com', 'test123')
      .catch((error) => {
        console.log('Error: ', error.message);
      });
  }

Login works, however if I restart, user object is null… By restart I mean closing the app on simulator and then reopen it.

Is this intended behaviour? I read (I think in this group) that user status persists. 

Thanks,

Florian

[Florian Norbert Bepunkt]

Okay, it seems I'm not the only one. This issue seems related to new react-native version 0.37.0 - https://github.com/facebook/react-native/issues/10958

[José Urbano Duarte Junior]

On my project, this issue occurs only on iOS.

[Florian Norbert Bepunkt]

I checked with the upcoming react-native 0.38.rc-0 … same behaviour on ios. auth state is not saved. tested with clean install

[Bassam]

Hey all, the react native sdk doesn't do anything fancy to store state on the device. It just uses asyncStorage which is the recommended way for mobile apps built with react native.

I am not sure why you are experiencing this. Can you try testing by manually setting data in asyncStorage and then restart the device and check the data is still there? Last time I checked, i was not able to reproduce this.

[Florian Norbert Bepunkt]

I will try to test this on the weekend.

Have you tested with the current react-native version (0.37.0)?

It's strange, I can reproduce this on two maschines by creating a new react-native project, installing firebase, and login to one of my firebase projects with a user I created in dashboard.

I can upload a simple test case if this is of any help. but in my initial message I posted all code i added to default react native project besides my firebase config data.

[Channing Huang]

Do you happen to be using "Debug JS remotely"?

[Florian Norbert Bepunkt]

Saw your post on github… Yes, I'm using "Debug JS remotely"

[Avishay Bar]

Same happens here on 0.37.0.

[Hector Ramos]

A fix has landed in master and should ship as part React Native 0.39. You can try it out today on master, or in the 0.39 Release Candidate shortly.

[Kristofer Eng]

+1 - just ran into this issue as well. Guess no auto logging in until it is fixed.

On Thursday, November 17, 2016 at 9:54:40 AM UTC-8, Florian Norbert Bepunkt wrote:

[Bassam]

Hey all, this should be fixed in version 3.6.2:

https://firebase.google.com/support/release-notes/js#3.6.2