"AMQJS0007E Socket error:undefined" on wifi connection loss while trying to subscribe for topics

Describe the bug I am trying to simulate a sudden connection loss, in between query and subscribe. Even though adding a try/catch block for subscribe(), still there’s an unhandled promise rejection.

To Reproduce Using an iOS simulator, after all query operations are successful, disconnect simulator from WiFi connection.

Expected behavior Since there was a network loss after query AND before or during the subscription process, observable’s error callback should be able to handle this socket connection error.

Screenshots

Desktop (please complete the following information):

• OS: iOS
• Browser Safari
• Version 12.0.2

Smartphone (please complete the following information):

• Device: iPhone 8 simulator
• OS: iOS 12

Additional context I am using React Native. Using iPhone 8 simulator with debug mode enabled.

You can turn on the debug mode to provide more info for us by setting window.LOG_LEVEL = ‘DEBUG’; in your app.

[justinjoyn]

Any update on this? I always get this error when trying to subscribe to a topic after internet is restored.

     "errorCode":7,
     "errorMessage":"AMQJS0007E Socket error:undefined."

[joseph-d-p]

@pranavgawri, so what I did as a workaround was let the React Native component listen for network connectivity change. If the network changed from offline to wifi, I subscribe again. Previous subscription channels with disconnected socket under the hood were closed.