React-native-firebase: onAuthStateChanged not returning any result on iOS Sumulator

[levani]

Issue

I just updated to rnfirebase 5.1.0 from 5.0 and noticed that onAuthStateChanged works in a strange way on ios simulator. I need to reload app twice for the method to return a result. The first time I reload the app the callback is never invoked! Then after reloading again it works as expecred. If I reload again it does not work and it repeats.

---

Project Files

iOS

ios/Podfile:

• [ ] I'm not using Pods
• [x] I'm using Pods and my Podfile looks like:

pod 'Firebase/Core', '~> 5.11.0'
pod 'Firebase/Auth', '~> 5.11.0'
pod 'Firebase/Firestore', '~> 5.11.0'
pod 'Firebase/Functions', '~> 5.11.0'
pod 'Firebase/Storage', '~> 5.11.0'
pod 'Firebase/Messaging', '~> 5.11.0'
pod 'Firebase/DynamicLinks', '~> 5.11.0'

# N/A

AppDelegate.m:

// N/A

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Android

android/build.gradle:

// N/A

android/app/build.gradle:

// N/A

android/settings.gradle:

// N/A

MainApplication.java:

// N/A

AndroidManifest.xml:

<!-- N/A -->

---

Environment

• Platform that you're experiencing the issue on:
  
  
  
  • [ ] iOS
  
  
  • [ ] Android
  
  
  • [x] iOS but have not tested behavior on Android
  
  
  • [ ] Android but have not tested behavior on iOS
  
  
  • [ ] Both
  
  
• If known, the version of the platform are you experiencing the issue on:
  
  
  
  • iOS 12
  
  
• Operating System:
  
  
  
  • [x] MacOS, version: 10.14
  
  
  • [ ] Windows, version: N/A
  
  
  • [ ] Other, please specify: N/A
  
  
• Build Tools:
  
  
  
  • Xcode 10
  
  
• React Native version:
  
  
  
  • 0.57.4
  
  
• React Native Firebase library version:
  
  
  
  • 5.1
  
  
• Firebase module(s) you're using that has the issue:
  
  
  
  • [ ] N/A
  
  
  • [x] Authentication
  
  
  • [ ] Analytics
  
  
  • [ ] Cloud Firestore
  
  
  • [ ] Cloud Messaging (FCM)
  
  
  • [ ] Crashlytics
  
  
  • [ ] Dynamic Links
  
  
  • [ ] Functions Callable
  
  
  • [ ] Invites
  
  
  • [ ] Instance ID
  
  
  • [ ] Notifications
  
  
  • [ ] Performance Monitoring
  
  
  • [ ] Realtime Database
  
  
  • [ ] Remote Config
  
  
  • [ ] Storage
  
  
• Are you using TypeScript?
  
  
  
  • [x] No
  
  
  • [ ] Yes, version: N/A
  
  
• Are you using Expo, e.g. ExpoKit?
  
  
  
  • [x] No
  
  
  • [ ] Yes, I've _not_ ejected
  
  
  • [ ] Yes, but I have ejected to ExpoKit
  
  
  • [ ] Yes, but I have ejected to vanilla React Native
  
  
  • Expo version: N/A
  
  

---

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[facuacostag]

I'm having the same issue. The first time I run the app onAuthStateChanged is triggered properly, If I refresh once, it won't return anything but If I refresh again, It works. And If do it one more time, It happens again and so on.

[georgediaz88]

The same exact scenario is happening to me as outlined in the issue description and in @FacuAcosta 's comment. Same Firebase versions too.

[Ehesp]

Related? https://github.com/invertase/react-native-firebase/pull/1619

[antoinerousseau]

happens to me too on iOS 12.1 simulator (RN 0.57.5, RNF 5.1.0)

onAuthStateChanged calls its callback every two reloads!

[Salakar]

Is anyone having this issue on Android? Or is it just iOS?

Thanks

[IljaDaderko]

Happening to me on iOS as well after upgrading from 5.0 to 5.1, some additional info

Simulator (Debug)

1. When I am not logged in at all it works every other reload (gets past initialisation stage)
2. When I am logged in it works every time (perhaps from cache?) but if I trigger signOut it doesn't seem to trigger auth change, only after reloading

Physical Device (Release)
There seems to be an unusually long delay until onAuthChange is triggered / initialised, but it always works.

[ghsdh3409]

For my case, the following code makes onAuthStateChanged broken.

firebase.auth().signOut().then(() => { CodePush.restartApp(false) });

I checked that iOS native callback addAuthStateDidChangeListener is triggered. But, in the sendJSEvent, emitter.bridge is null. This is the reason that JS onAuthStateChanged is not triggered.

[ghsdh3409]

I make PR for this. Could you check if it resolves this issue?
You can install by modifying package.json like below.

"react-native-firebase": "git+https://github.com/hayanmind/react-native-firebase.git#1b5a9641383f1842d0a439109487c38903d1df2c"

@IljaDaderko @levani

[IljaDaderko]

@ghsdh3409 Yep, your fix works on my end 👍

[Salakar]

@ghsdh3409 just looked at your change and it makes sense - will get your PR merged for a patch release 👍