Issues running the Pusher service in a background task

[henry-ht]

I have set up a stable connection with a server running Laravel. When the application is open, it receives and notifies the logged-in user when a new message has arrived.

To run a background task, I am using the 'workmanager' package, which is very easy to configure. I have tested it by sending a local notification with the 'flutter_local_notifications' package, and it works correctly even when the application is completely closed. In other words, the notification is displayed on the mobile device.

When I use Pusher, I get the following error upon execution: _pusher.subscribe(channelName: "private-channel"), it throws the following error:

Pusher authorize error: java.lang.NullPointerException

Any idea on how to solve it, please help me.

[benw-pusher]

can you share the configuration / code in use for the Pusher setup?

[henry-ht]

can you share the configuration / code in use for the Pusher setup?

W/FlutterJNI(23468): FlutterJNI.init called more than once I/PusherChannelsFlutter(23468): Start com.pusher.client.Pusher@8f2c669 W/System.err(23468): SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". W/System.err(23468): SLF4J: Defaulting to no-operation (NOP) logger implementation W/System.err(23468): SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. I/flutter (23468): ┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── I/flutter (23468): │ #0 PusherService.init (package:pakage/src/services/pusher_service.dart:41:16) I/flutter (23468): │ #1 <asynchronous suspension> I/flutter (23468): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄ I/flutter (23468): │ 💡 init socket DISCONNECTED I/flutter (23468): └─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── I/PusherChannelsFlutter(23468): Pusher authorize error: java.lang.NullPointerException I/flutter (23468): ┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── I/flutter (23468): │ #0 callbackDispatcher.<anonymous closure> (package:pakage/main.dart:48:14) I/flutter (23468): │ #1 <asynchronous suspension> I/flutter (23468): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄ I/flutter (23468): │ 💡 Info log 69 I/flutter (23468): └─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── D/FlutterGeolocator(23468): Flutter engine disconnected. Connected engine count 1 D/FlutterGeolocator(23468): Disposing Geolocator services E/FlutterGeolocator(23468): Geolocator position updates stopped E/FlutterGeolocator(23468): There is still another flutter engine connected, not stopping location service I/WM-WorkerWrapper(23468): Worker result SUCCESS for Work [ id=8546fcda-07b9-426e-b317-1432157f5633, tags={ dev.fluttercommunity.workmanager.BackgroundWorker } ]

[henry-ht]

This is running the Pusher connection outside of the background tasks.

[henry-ht]

@benw-pusher please answer me?

[benw-pusher]

Just to confirm the situation: this works when not using workermanager but doesn't succeed when this is in place - is that correct?

[henry-ht]

Just to confirm the situation: this works when not using workermanager but doesn't succeed when this is in place - is that correct?

it is correct

[vasilich6107]

Sorry for interrupting @benw-pusher
but no one takes a look at PR #140

[henry-ht]

@benw-pusher Sorry, is it possible to find a solution, or should I give up hope?

[henry-ht]

@benw-pusher no me respondes?, no me dices nada?