Appcheck token on app launch

[paraganz]

Hi Team.

We are integrating Firebase sdk first time. When we use sample app available at https://github.com/firebase/firebase-ios-sdk/tree/main/FirebaseAppCheck/Apps/FIRAppCheckTestApp, it is not fetching app check token from server (firebaseappcheck.googleapis.com) if token was fetched in previous instance. When we use same code in our app, Firebase sdk always makes an API call to the server to get the token i.e. it does not use cached token. We are not able to understand the reason for this. Can anybody guide ?

SDK version: 11.14.0
TTL value in FB console: 2 days

[morganchen12]

Without seeing your app code, it's impossible to know the difference between your app and the test app. Can you try to repro this behavior in a separate project and share it with us?

[paraganz]

Hi @morganchen12 . After doing some more analysis, we have identified the behaviour but we don't know the reason behind it. As per documentation, we are configuring the sdk in main app. However, we are fetching the appcheck token in linked framework. Please find the relevant code at AppCheckSample. In the sample app, we have created class SampleSingleton and there we have function doSomething. Even though that function is not getting called on launch, app is making api call to get the token. If we comment out doSomething, sample app does not make a call to get the token on app launch.

[morganchen12]

Can you share the stack trace for the token refresh invocation? You should be able to find it by setting a symbolic breakpoint to this method.

[google-oss-bot]

Hey @paraganz. We need more information to resolve this issue but there hasn't been an update in 5 weekdays. I'm marking the issue as stale and if there are no new updates in the next 5 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!