Improve errors for unauthenticated requests

[jackwotherspoon]

Prerequisites

• Search the current open issues

What are you trying to do that currently feels hard or impossible?

If you deploy Toolbox to Cloud Run as a service thats requires authentication and then try to connect using the SDK without authentication, the error that is returned is not great.

  File "/Users/jackwoth/dev/adk-samples/python/agents/software-bug-assistant/.venv/lib/python3.13/site-packages/toolbox_core/client.py", line 197, in load_toolset
    json = await response.json()
           ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jackwoth/dev/adk-samples/python/agents/software-bug-assistant/.venv/lib/python3.13/site-packages/aiohttp/client_reqrep.py", line 734, in json
    raise ContentTypeError(
    ...<7 lines>...
    )
aiohttp.client_exceptions.ContentTypeError: 403, message='Attempt to decode JSON with unexpected mimetype: text/html; charset=utf-8', url='https://toolbox-669006305285.us-central1.run.app/api/toolset/tickets_toolset'

Suggested Solution(s)

Improve error message to say something about requiring authentication or unauthenticated request.

Alternatives Considered

No response

Additional Details

No response

[jackwotherspoon]

Seems to also happen if you provide an invalid URL as the toolbox url

aiohttp.client_exceptions.ContentTypeError: 404, message='Attempt to decode JSON with unexpected mimetype: text/html; charset=utf-8', url='https://toolbox-669006305265.us-central1.run.app/api/toolset/tickets_toolset'

[anubhav756]

Hi Jack!

Thanks for flagging that bug! Just wanted to let you know that #275 should fix it. You'll now get the actual error message from the server instead of that generic "Attempt to decode JSON" one.

Hope it helps 🙂