Calendar data from subscribe_to_push

[ShoazizUzbek]

I am getting items from subscribe_to_push feature using callback API.

subscription_id, watermark = ac.inbox.subscribe_to_push(
    callback_url="https://c7be-188-113-231-123.ngrok-free.app/api/v1/callback_url"
)
Then in the API:
@csrf_exempt
def notify_me(request):
    if request.method == 'POST':
       
        ws = SendNotification(protocol=None)

        for notification in ws.parse(request.body):
           
            for event in notification.events:
                if isinstance(event, (CreatedEvent, NewMailEvent)):
                    item_id = event.item_id
                    **letter** = account.inbox.get(id=item_id.id)
                    # If the **letter** is calendar message, the type of object is MeetingRequest.
              
        data = ws.ok_payload()
        return HttpResponse(data, content_type="text/xml; charset=utf-8", status=201)

How can I get the .ics file from letter object and whole data about calendar such as data, time, location, title, description etc?

[ecederstrand]

A MeetingRequest item has an associated_calendar_item_id field that you can use to look up the calendar item. See

exchangelib/exchangelib/items/calendar_item.py

Line 300 in b6e4b1c

associated_calendar_item_id = AssociatedCalendarItemIdField(field_uri="meeting:AssociatedCalendarItemId")