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Propagating onEvent errors of EventListener not handled

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
45/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
android, firebase, kotlin
Domain
databases, mobile

Research direction

Start with the Firestore Android codelab's “Display data from Firestore” step and inspect the EventListener.onEvent callback and FirestoreAdapter.onError entry point. Done means listen errors from an improper Query reach the protected onError method so subclasses can provide handling such as displaying a Snackbar.

Written by the indexing model from the issue text.

Description

In the Step - "Display data from Firestore", the provided code does not handle the case of propagating the Listen errors to the protected method onError() of FirestoreAdapter. If propagated, then only the user will be able to see a Snackbar in case of any Listen errors occurring due to improper Query, in the onEvent() callback of EventListener. This onError() method is overidden by subclasses of FirestoreAdapter to provide their own implementation for handling the FirebaseFirestoreException error passed to it.

Dominant language
Kotlin
Stars
295
Forks
168
Avg merge
8d 9h
Merged PRs (30d)
3

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