simplejson.scanner.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

[HeathNaylor]

For simplicity sake I have user a and b for my app_id and user_id respectively.

Traceback (most recent call last):
  File "/etc/salt/bash/vault.py", line 30, in <module>
    client.auth_app_id('a', 'b')
  File "/usr/local/lib/python2.7/dist-packages/hvac/v1/__init__.py", line 412, in auth_app_id
    return self.auth('/v1/auth/{0}/login'.format(mount_point), json=params, use_token=use_token)
  File "/usr/local/lib/python2.7/dist-packages/hvac/v1/__init__.py", line 524, in auth
    response = self._post(url, **kwargs).json()
  File "/usr/local/lib/python2.7/dist-packages/hvac/v1/__init__.py", line 561, in _post
    return self.__request('post', url, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/hvac/v1/__init__.py", line 587, in __request
    errors = response.json().get('errors')
  File "/usr/local/lib/python2.7/dist-packages/requests/models.py", line 808, in json
    return complexjson.loads(self.text, **kwargs)
  File "/usr/lib/python2.7/dist-packages/simplejson/__init__.py", line 488, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/dist-packages/simplejson/decoder.py", line 370, in decode
    obj, end = self.raw_decode(s)
  File "/usr/lib/python2.7/dist-packages/simplejson/decoder.py", line 389, in raw_decode
    return self.scan_once(s, idx=_w(s, idx).end())
simplejson.scanner.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Simplification of my script:

import os
import sys
import hvac

client = hvac.Client(url=os.environ.get("VAULT_ADDR"), verify=False)
client.auth_app_id('a', 'b')

[ianunruh]

Which version of Vault are you using?

[ianunruh]

Closing since I can't reproduce on my end. When using an invalid user id/app id combo, I get back an InvalidRequest exception, not a JSON parsing error.

[ahlinc]

I've proposed solution here #54 and added test_broken_token test that reproduces similar issue in the code line errors = response.json().get('errors') when the Vault server sends text/plain response. I suppose such responses happen in the Vault when an exception raised outside of Vault code in the net/http golang library.