addDocumentSnapshotListener grow in ios if it doesn't find anything

[FrancescoIoppolo]

I've found that the function grows if it doesn't find a valid result. Is it possible to handle the error?

 const addDocumentSnapshotListener = async () => {
    const callbackId = await FirebaseFirestore.addDocumentSnapshotListener(
      {
        reference: 'problems/'+ id,
      },
      (event, error) => {
        if (error) {
          console.error(error);
        } else {
          setDati(event.snapshot.data)
          //console.log(event.snapshot.data.userId)
        }
      }
    );
  };

FATAL EXCEPTION: main
Process: io.ionic.starter, PID: 25567
java.lang.NullPointerException: Attempt to invoke interface method 'java.util.Set java.util.Map.keySet()' on a null object reference
at io.capawesome.capacitorjs.plugins.firebase.firestore.FirebaseFirestoreHelper.createJSObjectFromMap(FirebaseFirestoreHelper.java:36)
at io.capawesome.capacitorjs.plugins.firebase.firestore.classes.results.GetDocumentResult.toJSObject(GetDocumentResult.java:17)
at io.capawesome.capacitorjs.plugins.firebase.firestore.FirebaseFirestorePlugin$11.success(FirebaseFirestorePlugin.java:363)
at io.capawesome.capacitorjs.plugins.firebase.firestore.FirebaseFirestore.lambda$addDocumentSnapshotListener$20(FirebaseFirestore.java:216)
at io.capawesome.capacitorjs.plugins.firebase.firestore.FirebaseFirestore$$ExternalSyntheticLambda12.onEvent(Unknown Source:4)
at com.google.firebase.firestore.DocumentReference.lambda$addSnapshotListenerInternal$2$com-google-firebase-firestore-DocumentReference(DocumentReference.java:504)
at com.google.firebase.firestore.DocumentReference$$ExternalSyntheticLambda2.onEvent(Unknown Source:6)
at com.google.firebase.firestore.core.AsyncEventListener.lambda$onEvent$0$com-google-firebase-firestore-core-AsyncEventListener(AsyncEventListener.java:42)
at com.google.firebase.firestore.core.AsyncEventListener$$ExternalSyntheticLambda0.run(Unknown Source:6)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:264)
at android.app.ActivityThread.main(ActivityThread.java:8312)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:632)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1049)

[robingenz]

Yes, this should be a bug. I will fix this. Please create a bug report.

[robingenz]

@FrancescoIoppolo Can you please give this dev build a try and let me know if your issue is resolved?

npm i @capacitor-firebase/firestore@5.3.0-dev.8d03b6e.1701952203

[FrancescoIoppolo]

Yes, it seems to be working properly now!
Thanks