Cannot initialize IBMServerlessClient inside serverless program

[frankharkins]

Steps to reproduce the problem

1. Run this code in a serverless program.

   from qiskit_serverless import IBMServerlessClient
   serverless = IBMServerlessClient(token="<YOUR_IBM_QUANTUM_TOKEN>")

What is the current behavior?

The job errors. Here are the logs (with my token redacted):

2024-11-26 16:29:22,326	INFO job_manager.py:531 -- Runtime env is setting up.
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/qiskit_serverless/core/clients/serverless_client.py", line 134, in _verify_token
    safe_json_request(
  File "/usr/local/lib/python3.11/site-packages/qiskit_serverless/utils/json.py", line 143, in safe_json_request
    raise QiskitServerlessException(error_message)
qiskit_serverless.exception.QiskitServerlessException: 
| Message: Connection error. Make sure configuration (host and auth details) is correct.
| Code: AUTH1001

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/tmp/ray/session_2024-11-26_16-29-10_902153_1/runtime_resources/working_dir_files/_ray_pkg_80432732e942e5df/my_program.py", line 2, in <module>
    serverless = IBMServerlessClient(token="***")
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/qiskit_serverless/core/clients/serverless_client.py", line 472, in __init__
    super().__init__(token=token, host=IBM_SERVERLESS_HOST_URL)
  File "/usr/local/lib/python3.11/site-packages/qiskit_serverless/core/clients/serverless_client.py", line 123, in __init__
    self._verify_token(token)
  File "/usr/local/lib/python3.11/site-packages/qiskit_serverless/core/clients/serverless_client.py", line 143, in _verify_token
    raise QiskitServerlessException("Cannot verify token.") from reason
qiskit_serverless.exception.QiskitServerlessException: Cannot verify token.

I get the same problem if I provide no arguments.

What is the expected behavior?

IBMServerlessClient class initializes correctly.

[Tansito]

Thanks to open this @frankharkins , we will take a look. Initially this is working because we are using it in our tests I think but let me confirm in case I was confused.