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[PYTHON] Timeout with websockets ConnectionClosedError: received 4300 (private use) Idle timeout expired; then sent 4300 (private use) Idle timeout expired

Tags: subscription, notifications

Jul 14, 2023 at 10:55am • 1 replies • 0 likes

Lenn Dolling

Trying to setup a heartbeat to keep the Notification websocket listener app that I am developing from crashing...

I am subscribing for session events and processing them in python just after time the app will fail with the above message.

I wonder what is the best way to do this... platform.refresh?

should I re-recreate the subscription on timeout vs sending a ping?

heartbeat_interval = 30  # in seconds

async def heartbeat(platform, interval):
    while True:
        try:
            platform.refresh()
        except ConnectionClosed:
            break
        await asyncio.sleep(interval)

1 Answer

Tyler Liu answered on Jul 16, 2023 at 5:44pm

To keep it alive, you should send a websocket ping frame. This is just a low level websocket exception that has little do to with RingCentral. (RingCentral SDK should handle this case though).

Here is how JavaScript handle it, FYI: https://github.com/ringcentral/ringcentral-extensible/blob/master/packages/extensions/ws/src/index.ts#L265

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