invalid_client

[StayPirate]

I installed the integration from HACS, I got my ClientID and SecretClient from the Miele website, then I added them to my HA configuration.yaml as follow:

# Miele integration
# https://github.com/HomeAssistant-Mods/home-assistant-miele
miele:
  client_id: ***********************************************
  client_secret: ******************************************
  lang: it

When I try to login into my Miele account from Settings -> Devices & Services -> Entities -> Miele@Home -> Control (Button) -> Link Miele Account (Link) I'm redirected to the Miele website for the login and after a successful login I'm redirected back to HA via a callback (sth like: http://ha.home/api/miele/callback?code=IT_*******************************&state=login) where I guess the code parameter is the token.

At that point I get a 500 in HA:

500 Internal Server Error
Server got itself in trouble

Looking at the logs it seems that oauthlib.oauth2.rfc6749.errors.InvalidClientError raised.

2022-08-15 19:14:15.301 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/aiohttp/web_protocol.py", line 435, in _handle_request
    resp = await request_handler(request)
  File "/usr/local/lib/python3.10/site-packages/aiohttp/web_app.py", line 504, in _handle
    resp = await handler(request)
  File "/usr/local/lib/python3.10/site-packages/aiohttp/web_middlewares.py", line 117, in impl
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/security_filter.py", line 60, in security_filter_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/forwarded.py", line 100, in forwarded_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/request_context.py", line 28, in request_context_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/ban.py", line 82, in ban_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/auth.py", line 236, in auth_middleware
    return await handler(request)
  File "/usr/src/homeassistant/homeassistant/components/http/view.py", line 136, in handle
    result = await result
  File "/config/custom_components/miele/__init__.py", line 252, in get
    result = await hass.async_add_executor_job(func)
  File "/usr/local/lib/python3.10/concurrent/futures/thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/config/custom_components/miele/miele_at_home.py", line 151, in get_access_token
    token = self._session.fetch_token(
  File "/usr/local/lib/python3.10/site-packages/requests_oauthlib/oauth2_session.py", line 366, in fetch_token
    self._client.parse_request_body_response(r.text, scope=self.scope)
  File "/usr/local/lib/python3.10/site-packages/oauthlib/oauth2/rfc6749/clients/base.py", line 448, in parse_request_body_response
    self.token = parse_token_response(body, scope=scope)
  File "/usr/local/lib/python3.10/site-packages/oauthlib/oauth2/rfc6749/parameters.py", line 441, in parse_token_response
    validate_token_parameters(params)
  File "/usr/local/lib/python3.10/site-packages/oauthlib/oauth2/rfc6749/parameters.py", line 448, in validate_token_parameters
    raise_from_error(params.get('error'), params)
  File "/usr/local/lib/python3.10/site-packages/oauthlib/oauth2/rfc6749/errors.py", line 399, in raise_from_error
    raise cls(**kwargs)
oauthlib.oauth2.rfc6749.errors.InvalidClientError: (invalid_client)

I'm wondering if I input the wrong value as ClientID?? Mine is in the form of xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx where each x is a hexadecimal number. A common 8-4-4-4-12 GUID.

I'm running HA Supervisor 2022.08.3.

[StayPirate]

I switched to https://github.com/astrandb/miele which works great. I know that's not a real solution, so I keep this issue open waiting for an proper one.