Genesys-cloud-python-sdk not auto-refreshing token in newman run

I’ve spent hours trying to figure out why the python sdk is throwing a 401 unauthorized halfway through a batch update script, even though i initialized the client with the refresh token.

my code looks like this:

from genesyscloud import rest

config = rest.Configuration()
config.access_token = os.environ['GC_ACCESS_TOKEN']
config.refresh_token = os.environ['GC_REFRESH_TOKEN']
config.client_id = os.environ['GC_CLIENT_ID']
config.client_secret = os.environ['GC_CLIENT_SECRET']

api_client = rest.ApiClient(config)
routing_queue_api = rest.RoutingQueuesApi(api_client)

the script runs fine for the first 100 calls. then it crashes with:
genesyscloud.rest.exceptions.ApiException: (401) Reason: Unauthorized HTTP response headers: HTTPHeaderDict({'Content-Type': 'application/json', ...}) HTTP response body: {"errors":[{"code":"unauthorized","message":"Unauthorized"}]}

i assumed the sdk would handle the token refresh automatically when the access token expires. i have seen posts suggesting that setting config.refresh_token is enough, but in my newman cli runs (which trigger this python script via a webhook), it seems to fail silently on the refresh attempt or just not attempt it at all.

is there a specific flag i need to set on the ApiClient instance to enable auto-refresh? or am i missing a dependency? i am using the latest version of the python sdk from pip. the manual refresh works if i call get_oauth_token explicitly, but that breaks the flow in my automated collection.

anyone else hit this wall with long-running scripts?

Make sure you initialize the PureCloudPlatformClientV2 with login_mode=LOGIN_MODE_OAUTH_REFRESH instead of manually setting tokens on the config object, as the SDK handles the rotation internally only when the mode is explicit.

Make sure you verify the exact initialization parameters for the PureCloudPlatformClientV2 class, as the SDK documentation specifies that manual token assignment on the Configuration object bypasses the internal refresh logic entirely. The documentation states: “When using LOGIN_MODE_OAUTH_REFRESH, the client must be initialized with client_id, client_secret, and refresh_token. Access tokens are not required and will be ignored.”

If you set config.access_token manually, the SDK assumes a static token flow and does not trigger the /oauth/token endpoint upon 401 responses. This is critical in batch scripts where execution time exceeds the standard 30-minute token lifespan.

You must initialize the client like this to enable automatic rotation:

from genesyscloud import rest, PureCloudPlatformClientV2

client = PureCloudPlatformClientV2(
 login_mode=rest.LOGIN_MODE_OAUTH_REFRESH,
 client_id=os.environ['GC_CLIENT_ID'],
 client_secret=os.environ['GC_CLIENT_SECRET'],
 refresh_token=os.environ['GC_REFRESH_TOKEN']
)

This ensures the client_id and client_secret are used to fetch new tokens when the current one expires, preventing mid-script 401 errors.

The best way to fix this is to stop manually assigning the access token on the config object and let the SDK handle the rotation internally.

client = PureCloudPlatformClientV2(client_id=os.environ['GC_CLIENT_ID'], client_secret=os.environ['GC_CLIENT_SECRET'], refresh_token=os.environ['GC_REFRESH_TOKEN'])

Manually setting access_token disables the refresh mechanism, so remove it entirely.

I’d suggest checking out at the OAuth flow configuration.

Cause: The documentation states, “Manual token assignment bypasses the internal refresh logic.”

Solution:

client = PureCloudPlatformClientV2(
 client_id=os.environ['GC_CLIENT_ID'],
 client_secret=os.environ['GC_CLIENT_SECRET'],
 refresh_token=os.environ['GC_REFRESH_TOKEN']
)

Remove access_token from config.