How can I retrieve a SharePoint site ID from a site name using the msgraph Python SDK?

Below is one way to retrieve a SharePoint site’s ID using the Python msgraph SDK. Microsoft Graph supports addressing a site by path instead of having to start with its numeric ID. You can use the client’s by_path method to request the site object and then access its id. For example:

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import asyncio
from azure.identity.aio import ClientSecretCredential
from msgraph import GraphServiceClient

tenant_id = "..."
client_id = "..."
client_secret = "..."

credential = ClientSecretCredential(tenant_id, client_id, client_secret)
scopes = ['https://graph.microsoft.com/.default']

client = GraphServiceClient(credentials=credential, scopes=scopes)

sharepoint_tenant = "foobar365.sharepoint.com"
site_name = "someTestSPsite"

# Retrieve the site object by path.
# The API endpoint being used is similar to:
# GET https://graph.microsoft.com/v1.0/sites/{hostname}:/sites/{site_name}?$select=id
site = asyncio.run(
    client.sites.by_path(f":/sites/{site_name}", sharepoint_tenant).get()
)

# Now access the site's id
site_id = site.id
print("Site ID:", site_id)

# With the site id, you can then list the drives:
drives = asyncio.run(client.sites.by_site_id(site_id).drives.get())
print(drives)

Explanation

• The call to
  client.sites.by_path(f":/sites/{site_name}", sharepoint_tenant).get()
  uses the Graph API endpoint that retrieves a site by combining your SharePoint tenant hostname and the site name. This is equivalent to the REST URL:
  https://graph.microsoft.com/v1.0/sites/{sharepoint_tenant}:/sites/{site_name}?$select=id.

• Once you receive the site object, you can read its id property and use it for subsequent API calls—such as listing drives on the site.

This approach lets you avoid hardcoding the site ID and fetch it dynamically from the site name using the msgraph Python library.