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Tests access to a SharePoint site's document library (drives) via Microsoft Graph API and attempts to access the first drive's root items.

Purpose

This function is designed to validate permissions and connectivity to SharePoint site drives through the Microsoft Graph API. It retrieves all drives associated with a given site, verifies successful API access, and if drives are found, attempts to access the first drive's items by calling test_drive_items(). This is typically used in authentication testing, permission validation, or SharePoint integration diagnostics.

Source Code

def test_site_drive_access(access_token, site_id):
    """Test accessing the site's drive (document library)."""
    headers = {
        'Authorization': f'Bearer {access_token}',
        'Accept': 'application/json'
    }
    
    try:
        # Get drives for the site
        drives_url = f"https://graph.microsoft.com/v1.0/sites/{site_id}/drives"
        response = requests.get(drives_url, headers=headers)
        
        if response.status_code == 200:
            print("✅ Site drives accessible via Graph API")
            drives_data = response.json()
            
            if 'value' in drives_data and drives_data['value']:
                print(f"   Found {len(drives_data['value'])} drives")
                
                # Try to access the first drive's root
                drive_id = drives_data['value'][0]['id']
                return test_drive_items(access_token, site_id, drive_id)
            else:
                print("   ⚠️  No drives found")
                return False
        else:
            print(f"❌ Site drives API failed: {response.status_code}")
            return False
            
    except Exception as e:
        print(f"❌ Exception testing site drives: {e}")
        return False

Parameters

Parameter Details

access_token: A valid OAuth 2.0 bearer token with appropriate Microsoft Graph API permissions (e.g., Sites.Read.All, Files.Read.All) to access SharePoint site drives. This token is used in the Authorization header for API requests.

site_id: The unique identifier of the SharePoint site whose drives should be accessed. This can be obtained from Microsoft Graph API site discovery endpoints or SharePoint admin center. Format is typically a GUID or site URL-based identifier.

Return Value

Returns a boolean value. Returns True if drives are successfully accessed and the first drive's items can be accessed (delegated to test_drive_items function). Returns False if the API call fails (non-200 status), no drives are found, or an exception occurs during execution. The function also prints status messages to console indicating success (✅), warnings (⚠️), or errors (❌).

Dependencies

• requests

Required Imports

import requests

Usage Example

# Assuming you have obtained an access token and site_id
access_token = "eyJ0eXAiOiJKV1QiLCJhbGc..."
site_id = "contoso.sharepoint.com,abc123-def456-ghi789,xyz987-uvw654-rst321"

# Test site drive access
result = test_site_drive_access(access_token, site_id)

if result:
    print("Successfully accessed site drives and drive items")
else:
    print("Failed to access site drives or no drives found")

Best Practices

• Ensure the access token has not expired before calling this function
• Handle the boolean return value appropriately in calling code to determine next steps
• The function depends on test_drive_items() which must be defined elsewhere in the codebase
• Consider implementing retry logic for transient network failures
• Monitor console output for diagnostic information about API responses
• Validate that the site_id format matches Microsoft Graph API requirements
• Be aware that this function only tests the first drive if multiple drives exist
• Implement proper token refresh mechanisms in production environments
• Consider adding logging instead of print statements for production use

Tags

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