Get calendar events with an API call from python script help

Question

Hi,

I know that it was asked a lot, but it seems that nobody figured it out.

I'm trying to do a simple thing. Get the calendar events from a user. I followed the instructions here: https://learn.microsoft.com/en-us/graph/api/calendar-list-events?view=graph-rest-1.0&tabs=http

and It just does not work. I have all the IDs I need, I opened a personal Microsoft account (currently I'm on the trial), and the account is connect to the user in the Azure AD.

This is my code:

import msal
import r
CLIENT_SECRET = "client secret"
APP_ID = "app id"
TENANT_ID = 'tenant id'
USER_ID = 'user id'
AUTHORITY_URL = f'https://login.microsoftonline.com/{TENANT_ID}'
SCOPES = ['https://graph.microsoft.com/.default']
GRAPH_ENDPOINT = f'https://graph.microsoft.com/v1.0/users/{USER_ID}/calendar/events'
GRAPH_ENDPOINT2 = f'https://graph.microsoft.com/v1.0/users/{USER_ID}'

def get_access_token():
    app = msal.ConfidentialClientApplication(
        CLIENT_ID,
        authority=AUTHORITY_URL,
        client_credential=CLIENT_SECRET,
    )

    result = app.acquire_token_for_client(scopes=SCOPES)

    if "access_token" in result:
        print(result['access_token'])
        return result['access_token']
    else:
        print("Error obtaining access token:")
        print(result.get("error"))
        print(result.get("error_description"))
        print(result.get("correlation_id"))  # You might need this when reporting a bug
        raise Exception("Could not acquire access token")


def get_calendar_events(access_token):
    headers = {
        'Authorization': f'Bearer {access_token}'
    }
    response = requests.get(GRAPH_ENDPOINT, headers=headers)

    if response.status_code == 200:
        return response.json()
    else:
        print(f"API call failed with status code {response.status_code}")
        print(response.json())
        return None


def make_graph_api_call2(access_token):
    headers = {
        'Authorization': f'Bearer {access_token}'
    }
    response = requests.get(GRAPH_ENDPOINT2, headers=headers)

    if response.status_code == 200:
        return response.json()
    else:
        print(f"API call failed with status code {response.status_code}")
        print(response.text)
        return None

if __name__ == '__main__':
    token = get_access_token()
    users_info = make_graph_api_call2(token)
    print(users_info)
    events_info = get_calendar_events(token)
    print(events_info)

The results for make_graph_api_call2 are working fine (just getting my details), but for the make_graph_api_call (the events) I get an error:
{'error': {'code': 'OrganizationFromTenantGuidNotFound', 'message': "The tenant for tenant guid 'xxxxxxx' does not exist.", 'innerError': {'oAuthEventOperationId': 'xxxxxx', 'oAuthEventcV': 'xxxxxxx', 'errorUrl': 'https://aka.ms/autherrors#error-InvalidTenant', 'requestId': 'xxxxxx', 'date': '2024-06-19T17:33:21'}}}

I gave the permission from Azure:

Can someone please help me to understand how to configure this? Maybe give me a guide for all the steps I need to make? It needs to be simple and I stuck on it over a week now.

Thank you!

Answer 1

Hi @aviv eldad

This is a common problem. The tenant cannot be queried because the tenant has not assigned a license.

Try purchasing or free trial MS 365 license for your tenant, then go to Azure AD and grant that license to the logged in user.

Hope this helps.

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