You’re absolutely right; the Microsoft Graph API doesn’t provide a direct way to loop through rows using the usedRange/row endpoint. It’s designed for working with specific cells within the used range.
Here are two alternative approaches to achieve your goal of looping through rows in a shared Excel file using Python automation:
1. Using openpyxl library (recommended):
Since you’re already comfortable with openpyxl , it’s the recommended approach for working directly with the Excel file. Here’s the process:
import openpyxl
- **Authenticate with Microsoft Graph (if necessary):**If you need to access private data in the file and haven’t already, use the Microsoft Graph API to get an access token for your application. You can find resources online for Microsoft Graph authentication in Python.
- Open the shared Excel file (using access token if needed):
- For public files:
Python
wb = openpyxl.load_workbook(url="https://<drive_id>/items/<item_id>
For private files (using access token):
Python
# Replace with your access token
access_token = "<your_access_token>"
headers = {"Authorization": f"Bearer {access_token}"}
wb = openpyxl.load_workbook(url="https://<drive_id>/items/<item_id>
Get the worksheet:
Python
worksheet = wb["<worksheet_name>"]
Loop through rows using the iter_rows() method:
Python
for row in worksheet.iter_rows():
# Access cells in the row using cell.value or cell.coordinate
for cell in row:
# Check your criteria on cell values
if your_condition(cell.value):
# Update cell value if needed
cell.value = "New Value"
# Save the changes to the Excel file
wb.save("updated_file.xlsx")
2. Using Microsoft Graph API with Delta Queries (advanced):
If you need to constantly monitor changes in the shared file and react in real-time, you can use Delta Queries with Microsoft Graph API. It’s a more complex approach, but here’s a general idea:
- Subscribe to a Delta Query: Subscribe to a Delta Query that monitors changes in the specific worksheet of a shared Excel file. This requires building a subscription and handling notifications.
- Process notifications: Parse the notification payload to identify changes in specific rows.
- Update the file: Use the Graph API to update the specific cells within those rows based on your criteria.
This approach involves more development effort and understanding of Delta Queries. Refer to the Microsoft Graph documentation for Delta Queries: Use delta query to track changes in Microsoft Graph data - Microsoft Graph | Microsoft Learn.
Remember: When accessing shared files, ensure you have the necessary permissions to read and write data.
For your specific error with row segment, it’s because the Graph API expects a specific cell address or range. It doesn’t support querying entire rows directly. Choose the approach that best suits your requirements and coding experience.