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Retrieves and displays items from a SharePoint document library using Microsoft Graph API, showing the total count and details of up to 5 items.

Purpose

This function queries a specific SharePoint document library to explore its contents. It fetches all items in the library, displays the total count, and prints details (specifically the filename) of the first 5 items. This is useful for debugging, auditing, or getting a quick overview of library contents without retrieving all item details.

Source Code

def explore_library_items(site_id, list_id, headers, lib_name):
    """Explore items in a specific document library."""
    try:
        items_url = f"https://graph.microsoft.com/v1.0/sites/{site_id}/lists/{list_id}/items"
        response = requests.get(items_url, headers=headers)
        
        if response.status_code == 200:
            items_data = response.json()
            items = items_data.get('value', [])
            print(f"   📄 {len(items)} items in '{lib_name}'")
            
            # Try to get more details about first few items
            for item in items[:5]:
                fields = item.get('fields', {})
                print(f"     📄 {fields.get('FileLeafRef', 'Unknown')}")
        else:
            print(f"   Failed to get items: {response.status_code}")
            
    except Exception as e:
        print(f"   Error exploring library items: {e}")

Parameters

Parameter Details

site_id: The unique identifier (GUID) of the SharePoint site containing the document library. This is obtained from Microsoft Graph API site queries.

list_id: The unique identifier (GUID) of the SharePoint list/library to explore. Each document library in SharePoint is represented as a list with a unique ID.

headers: Dictionary containing HTTP headers for authentication with Microsoft Graph API. Must include 'Authorization' header with a valid Bearer token that has permissions to read SharePoint sites and lists.

lib_name: Human-readable name of the library being explored. Used only for display purposes in console output to make the results more readable.

Return Value

This function does not return any value (implicitly returns None). It performs side effects by printing information to the console, including the number of items found and filenames of up to 5 items.

Dependencies

• requests

Required Imports

import requests

Usage Example

import requests

# Setup authentication headers
headers = {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json'
}

# SharePoint identifiers
site_id = 'contoso.sharepoint.com,12345678-1234-1234-1234-123456789012,87654321-4321-4321-4321-210987654321'
list_id = 'abcdef12-3456-7890-abcd-ef1234567890'
library_name = 'Documents'

# Explore the library
explore_library_items(site_id, list_id, headers, library_name)

# Expected output:
#    📄 15 items in 'Documents'
#      📄 Report.docx
#      📄 Presentation.pptx
#      📄 Budget.xlsx
#      📄 Meeting_Notes.txt
#      📄 Project_Plan.pdf

Best Practices

• Ensure the access token in headers has not expired before calling this function
• Handle rate limiting from Microsoft Graph API if calling this function repeatedly
• The function only displays the first 5 items; consider pagination if you need to see all items in large libraries
• Error messages are printed to console but not raised as exceptions; consider wrapping calls in additional error handling if needed
• The function uses 'FileLeafRef' field which contains the filename; this field should be available for document libraries but may not exist for custom lists
• Consider implementing pagination to retrieve all items if the library contains more than the default page size (typically 200 items)
• The function makes synchronous HTTP requests which may block; consider async alternatives for high-performance applications

Tags

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