Unable to access token using gis._con.token

DCWORK_GIS

Hello,
I'm hoping someone can help with this problem I ran into today. I can no longer access the authentication token using the Connect through Built-In account method, or the Connect through Pro method. Both of these methods worked for me up until today, and would return a token string accessed through gis._con.token. I can still get a token through OAuth, but I need to run scheduled scripts, unsupervised. Also, my org doesn't use Named User Authentication, so username/password isn't an option.

// This method still works, and returns a token:

gis = GIS('https:myGisPortal.maps.arcgis.com', client_id='myClientID')
print("Logged in as: " + gis.properties.user.username)
print('token='+str(gis._con.token))

Returns:
Logged in as: myUsername
token=sYzv_5rgSSiElv7...bzoR2oayAHTvuJG8

// But these methods don't work anymore, and do not return a token:

gis = GIS('pro')
print("Logged in as: " + gis.properties.user.username)
print('token='+str(gis._con.token))

Returns:
Logged in as: myUsername
token=None

gis = GIS('home')
print("Logged in as: " + gis.properties.user.username)
print('token='+str(gis._con.token))

Returns:
Logged in as: myUsername
token=None

JRhodes

Looks like this is still an issue in ArcGIS Pro 3.3./Python API 2.3.0. If arcpy is available, @Vincentvd's solution works, but we had a need to find a workaround when arcpy wasn't available. 

I've had success using the authenticated session object for REST API and Sharing API calls to secured services instead of passing the token explicitly, like so (only tested on AGOL):

 

import json
from arcgis.gis import GIS

gis = GIS("pro")

# Use the session from the GIS object
session = gis._con._session

# Example secured URL, doesn't have to be admin, just an example
update_definition_url = "https://services8.arcgis.com/XXXXXXXXXXXXXXXX/arcgis/rest/admin/services/xyz/FeatureServer/updateDefinition"

# Define some parameters for the update; again, just an example
update_def_params = {
    'updateDefinition': json.dumps({
        "capabilities": "Query,Editing,Create,Update,Delete,Sync"
    }),
    'async': 'false',
    'f': 'json'
}

response = session.post(update_definition_url, data=update_def_params, timeout=10)
result = response.json()
print(result)

 

This apparently provides a subclass of a Requests session, so you can use it in place of requests; e.g., session.get, session.post, etc. Your mileage may vary, but this solved the problem for me in a workflow where arcpy wasn't an option.