JSONDecodeError when running garmindb_cli.py: requests.exceptions.JSONDecodeError: Expecting value

[oktaykurt]

Bug Report

Describe the bug
I'm encountering a JSONDecodeError when trying to download data using garmindb_cli.py. The script fails during the JSON parsing of a response from the server.

To Reproduce
Steps to reproduce the behavior:

1. Run the command:

   garmindb_cli.py --all --download

2. Observe the error output.

Expected behavior
I expected the script to successfully download all data without errors.

Logs
Please find below the output and traceback:

___Downloading All Data___
Traceback (most recent call last):
  File "/opt/homebrew/lib/python3.11/site-packages/requests/models.py", line 974, in json
    return complexjson.loads(self.text, **kwargs)
  File "/opt/homebrew/Cellar/python@3.11/3.11.5/lib/python3.11/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "/opt/homebrew/Cellar/python@3.11/3.11.5/lib/python3.11/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/opt/homebrew/Cellar/python@3.11/3.11.5/lib/python3.11/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)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/homebrew/bin/garmindb_cli.py", line 368, in <module>
    main(sys.argv[1:])
  File "/opt/homebrew/bin/garmindb_cli.py", line 349, in main
    download_data(args.overwrite, args.latest, args.stats)
  File "/opt/homebrew/bin/garmindb_cli.py", line 113, in download_data
    if not download.login():
           ^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/garmindb/download.py", line 92, in login
    self.garth.username
  File "/opt/homebrew/lib/python3.11/site-packages/garth/http.py", line 109, in username
    return self.profile["userName"]
           ^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/garth/http.py", line 101, in profile
    self._profile = self.connectapi(
                    ^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/garth/http.py", line 171, in connectapi
    resp = self.request(method, "connectapi", path, api=True, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/garth/http.py", line 129, in request
    self.refresh_oauth2()
  File "/opt/homebrew/lib/python3.11/site-packages/garth/http.py", line 168, in refresh_oauth2
    self.oauth2_token = sso.exchange(self.oauth1_token, self)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/garth/sso.py", line 146, in exchange
    ).json()
      ^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/requests/models.py", line 978, in json
    raise RequestsJSONDecodeError(e.msg, e.doc, e.pos)
requests.exceptions.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Additional context

• Operating System: macOS (MacBook Air)
• Python Version: 3.11.5 (installed via Homebrew)
• Installation Method: Installed via Homebrew
• Internet Connection: Stable and verified
• Garmin Account: Credentials are correct; able to log in via the web interface

What I've Tried

• Updated the garth library using pip install --upgrade garth
• Ensured that garmindb_cli.py is up to date
• Verified Garmin account credentials
• Checked for any API changes or updates in the garth repository
• Inspected the response manually to see if an HTML error page is returned instead of JSON
• Searched for similar issues but didn't find a solution

Possible Cause

It seems the script is expecting a JSON response but is receiving an unexpected response from the server, possibly due to:

• Changes in Garmin's API endpoints or authentication methods
• An authentication failure that returns an HTML error page instead of JSON
• A need to update the script to handle non-JSON responses gracefully

[tcgoetz]

You should file a garth bug for this.