Invalid Client Error

[goelx029]

Hi,

I am trying to get Fitbit data however when I try to run my code I get an invalid client error. The error I get is as follows:

500 Internal Server Error

The server encountered an unexpected condition which prevented it from fulfilling the request.

Traceback (most recent call last):
  File "D:\GIT\healthRecSys\venv\lib\site-packages\cherrypy\_cprequest.py", line 628, in respond
    self._do_respond(path_info)
  File "D:\GIT\healthRecSys\venv\lib\site-packages\cherrypy\_cprequest.py", line 687, in _do_respond
    response.body = self.handler()
  File "D:\GIT\healthRecSys\venv\lib\site-packages\cherrypy\lib\encoding.py", line 219, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "D:\GIT\healthRecSys\venv\lib\site-packages\cherrypy\_cpdispatch.py", line 54, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "D:\GIT\healthRecSys\src\gather_keys_oauth2.py", line 50, in index
    self.fitbit.client.fetch_access_token(code)
  File "D:\GIT\healthRecSys\src\fitbit\api.py", line 149, in fetch_access_token
    code=code)
  File "D:\GIT\healthRecSys\venv\lib\site-packages\requests_oauthlib\oauth2_session.py", line 307, in fetch_token
    self._client.parse_request_body_response(r.text, scope=self.scope)
  File "D:\GIT\healthRecSys\venv\lib\site-packages\oauthlib\oauth2\rfc6749\clients\base.py", line 415, in parse_request_body_response
    self.token = parse_token_response(body, scope=scope)
  File "D:\GIT\healthRecSys\venv\lib\site-packages\oauthlib\oauth2\rfc6749\parameters.py", line 425, in parse_token_response
    validate_token_parameters(params)
  File "D:\GIT\healthRecSys\venv\lib\site-packages\oauthlib\oauth2\rfc6749\parameters.py", line 432, in validate_token_parameters
    raise_from_error(params.get('error'), params)
  File "D:\GIT\healthRecSys\venv\lib\site-packages\oauthlib\oauth2\rfc6749\errors.py", line 405, in raise_from_error
    raise cls(**kwargs)
oauthlib.oauth2.rfc6749.errors.InvalidClientError: (invalid_client) 

I hope someone can help me figure out what might be wrong. I have checked the client_id and it is exactly same as present online on the dev.fitbit.com/apps page for my application.

Regards,

Saksham

[SBowen · Accepted solution]

Hello Saksham!

Apparently it's a common problem, it can often be solved by downgrading the libraries requests-oauthlib==1.1.0 and oauthlib==2.1.0. There is more discussion on the python fitbit api github here: https://github.com/orcasgit/python-fitbit/issues/142.

Best wishes!

-Serena

[goelx029]

Thanks. Actually this is what I did and it worked out.

[EtienneBourdon]

On my side we ran into the same issue and downgrading the python libraries did not solve it. 

We are trying to fetch data for testing purpose first in Python, before pushing into our code. 

We have OAuth 2.0 Application Type in settings set up to "server".

Our python libraries are

- oauthlib==2.1.0
- requests-oauthlib==1.1.0
- fitbit==0.3.0

The result remains an error message such as in the initial post. 

Any Idea ???