JSONDecodeError to catch when response cannot be received

2022-06-20 17:17:39 ERROR (MainThread) [custom_components.intex_spa] Error fetching intex_spa data: 
2022-06-20 17:18:09 ERROR (MainThread) [homeassistant.core] Error executing service: <ServiceCall switch.turn_on (c:01G611X014FMMB0MVRR50BTW7K): entity_id=['switch.spa_power']>
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/core.py", line 1722, in catch_exceptions
    await coro_or_task
  File "/usr/src/homeassistant/homeassistant/core.py", line 1741, in _execute_service
    await cast(Callable[[ServiceCall], Awaitable[None]], handler.job.target)(
  File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 204, in handle_service
    await service.entity_service_call(
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 680, in entity_service_call
    future.result()  # pop exception if have
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 964, in async_request_call
    await coro
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 717, in _handle_entity_call
    await result
  File "/config/custom_components/intex_spa/switch.py", line 86, in async_turn_on
    status = await self.coordinator.api.async_set(self._switch_type, True)
  File "/usr/local/lib/python3.9/site-packages/intex_spa/intex_spa.py", line 152, in async_set
    return await self._async_handle_intent(parameter, expected_state)
  File "/usr/local/lib/python3.9/site-packages/intex_spa/intex_spa.py", line 83, in _async_handle_intent
    await self.async_update_status()
  File "/usr/local/lib/python3.9/site-packages/intex_spa/intex_spa.py", line 139, in async_update_status
    return await self._async_handle_intent("status")
  File "/usr/local/lib/python3.9/site-packages/intex_spa/intex_spa.py", line 106, in _async_handle_intent
    query.render_response_status(received_bytes)
  File "/usr/local/lib/python3.9/site-packages/intex_spa/intex_spa_query.py", line 87, in render_response_status
    response = json.loads(received_bytes.decode())
  File "/usr/local/lib/python3.9/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python3.9/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/lib/python3.9/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

I added firewall rule between my dev host and SPA. Then switched the power switch. First line of log pops up almost instatly, exception shows after 30s timeout. My firewall is set to REJECT packets, not to DROP

Originally posted by @Elkropac in https://github.com/mathieu-mp/homeassistant-intex-spa/issues/10#issuecomment-1160686641

mathieu-mp / aio-intex-spa

JSONDecodeError to catch when response cannot be received #7