402 questions
1
vote
0
answers
153
views
Why does Firebase App Check think that my app is not registered?
I've been working on a Flutter project for iOS, and I'm confused on why Firebase App Check isn't working. Last release, it worked fine, but this release, it fails...so this leads me to believe that it'...
- 440
2
votes
1
answer
176
views
Flutter with Firebase App Check IOS Simulator Issues
I get this error everytime on IOS with simulator:
The operation couldn’t be completed. The attestation provider DeviceCheckProvider is not supported on current platform and OS version.
Flutter is ...
- 6,126
1
vote
0
answers
93
views
[firebase_app_check]: Error returned from API. code: 403 body: App attestation failed
I hope you’re doing well.
I’m experiencing an issue with App Check in my Flutter app. Everything was working fine until 02/09/2025, but afterwards I started receiving the following errors:
Error ...
0
votes
1
answer
63
views
Error getting app check token for apple sign in (iOS)
I was implementing apple sign-in for my app, as App Store guidelines require me to. However, I keep running into the same issue where it says
Error getting App Check token; using placeholder token ...
- 11
0
votes
1
answer
68
views
Firebase AppCheck Replay protection on custom BE without Admin SDK
Is there a way to enable replay protection on a BE that does not use one of the languages supported by the admin SDK ? I would like to consume a token after verification and not only checking its ...
- 4,692
0
votes
0
answers
65
views
How to securely implement rate limiting for authenticated users in Firebase Firestore? [duplicate]
Problem Context
I'm building a Firebase iOS app application where authenticated users can access their own documents. Each user has a dedicated document in Firestore with security rules like:
match /...
- 95
0
votes
1
answer
103
views
I am unable to test my app in closed testing because of App Check from Firebase
As in the title, I am unable to test my application that was published to closed testing in Google Play because of Firebase App Check.
Firstly, I published my app to internal testing channel, but the ...
- 54
0
votes
0
answers
101
views
Firebase Phone Auth + App Check: OTP not received consistently (Error Code 39, Quota Exceeded)
When using Firebase Phone Authentication with App Check enforced (Play Integrity for Android, App Attest for iOS), OTP SMS codes are delivered inconsistently. Some phone numbers/devices receive OTPs, ...
- 1
0
votes
0
answers
131
views
Firebase App Check (Play Integrity API) fails on certified, non-rooted Pixel devices — App attestation failed (403)
We have integrated Firebase App Check on Android using the Play Integrity API provider. Initially, App Check was disabled due to issues with some users, particularly those on GrapheneOS, who were ...
- 1,489
0
votes
0
answers
76
views
Firebase onCall function returns UNAUTHENTICATED despite valid client Auth and App Check
I'm building a Flutter app with Firebase. My onCall Cloud Function consistently returns an UNAUTHENTICATED error, even though I've confirmed the user is logged in on the client and App Check is ...
1
vote
1
answer
72
views
How to fix "The name 'PlayIntegrityAppCheckProviderFactory' does not exist in the current context" when using Play Integrity with Unity?
I'm facing an issue when i try to build my app by using play integrity in firebase library on unity. here is my class that work in debug and compile also if i remove the android code with play ...
- 45
0
votes
0
answers
108
views
Unable to initialize Firebase App Check with Next.js SSR
I am implementing Firebase using Typescript in Next.js15, and in order to improve the security of access to Firestore and Storage, in addition to implementing security rules, I am also enabling ...
- 15
1
vote
0
answers
46
views
Firebase App Check: Unverified requests on iOS (1-10%)
We have set up App Check for our app. In our production environment (used for TestFlight testing, not yet publicly released), we are seeing a certain percentage of unverified requests.
For Firebase ...
- 451
1
vote
0
answers
260
views
@react-native-firebase/app-check configuration always generates Unverified: invalid requests
I have configured App Check in my project and used @react-native-firebase/app-check library as my application is developed on React Native.
import {firebase} from '@react-native-firebase/app-check';
/...
- 509
3
votes
1
answer
60
views
How to Automatically Allow Firebase App Check Debug Tokens in a Flutter App Without Manual Updates in the Firebase Console?
I'm trying to add Firebase App Check to my Flutter app. The app works fine with the debug provider, but each time the app is installed, the App Check debug token changes. This forces the development ...
