HA stops polling Data on error

Development
1

Hi everyone,

i’ve build my first own integration which collects Data from a JSON API.

Sometimes the JSON Data is truncated and invalid for HA. This can occur due to a network error or the polled device is busy.

Now, instead of retrying to poll the Data, HA stops polling forever. I have to either restart HA or reload the integration so that polling continues.

What can I do to restart polling automatically?

2

You should be catching errors within your code and not let exceptions propagate back to home assistant. So if you receive invalid JSON handle the error within your code.

3

This is my code for updating data:

async def _async_update_data(self):

        try:

            with requests.Session() as sess:

                data = await self.hass.async_add_executor_job(sess.send, self._request)

                json_data = json.loads(data.text)

        except (OSError, Timeout, HTTPError, json.JSONDecodeError) as err:

            raise update_coordinator.UpdateFailed(err)

        _LOGGER.debug(

            "Connection to UVRLog successful. Retrieving latest UVRLog update from %s",

            data.url,

        )

        return json_data

So this part usually should do it?

except (OSError, Timeout, HTTPError, json.JSONDecodeError) as err:

            raise update_coordinator.UpdateFailed(err)
4

Looks like it should. Can you catch the error in the debugger and step through it?

Your debug statement should be before the raise to get called.

Perhaps add a separate except to catch any exceptions that don’t match the list?

5

Thank you PeteRage.

The Error is “Connection reset by Peer” which is not catched. I will try to implement this.