CODEWITHSUNDEEP
microsoft-graph-api
Smitesh
Smitesh

Reputation: 365

Microsoft Graph APi not returning "Cancelled" Events

I am trying to get all the events in a Conference room's calendar with Microsoft graph API, given a startDateTime and endDateTime. I tried the following API's - 

1. https://graph.microsoft.com/v1.0/users/{id}/events?startDateTime=2017-03-20T05:00:00.0000000&endDateTime=2017-04-06T21:00:00.0000000
2.https://graph.microsoft.com/v1.0/users/{id}/calendar/calendarView?startDateTime=2017-03-20T05:00:00.0000000&endDateTime=2017-04-06T21:00:00.0000000

The response includes all events with isCancelled=false. How do I fetch events which were Cancelled?

&$filter=isCancelled%20eq%20true also returned empty as there are no events with isCancelled=true in response

Upvotes: 7

Views: 3050

Answers (3)

meain
meain

Reputation: 861

If you don't mind using the beta API, you can use it to get cancelled or modified events for a master recurring event. You can make the following request(make sure to add $expand=exceptionOccurrences query string at the end):

GET https://graph.microsoft.com/beta/me/events/AAMkADAGAADDdm4NAAA=?$expand=exceptionOccurrences

You can find the cancelled items in cancelledOccurrences which will be of the format <id>-<date> and you can probably use the date to figure out which one was deleted. The modified instances are in exceptionOccurrences.

HTTP/1.1 200 OK
Content-type: application/json

{
  "@odata.context":"https://graph.microsoft.com/beta/$metadata#users('d1a2fae9-db66-4cc9-8133-2184c77af1b8')/events(subject,start,end,occurrenceId,exceptionOccurrences,cancelledOccurrences)/$entity",
  "@odata.etag":"W/\"y53lbKh6jkaxHzFwGhgyxgAAw5zhug==\"",
  "id":"AAMkADAGAADDdm4NAAA=",
  "subject": "Daily stand-up",
  "cancelledOccurrences": [
     "OID.AAMkADAGAADDdm4NAAA=.2020-04-30",
     "OID.AAMkADAGAADDdm4NAAA=.2020-05-07",
     "OID.AAMkADAGAADDdm4NAAA=.2020-05-14"
    ],
  "occurrenceId": null,
    "start": {
        "dateTime": "2020-04-23T11:30:00.0000000",
        "timeZone": "UTC"
    },
  "end": {
        "dateTime": "2020-04-23T12:00:00.0000000",
        "timeZone": "UTC"
    },
  "exceptionOccurrences": [
        {
            "id": "AAMkADM0ZGRhMjdjLTA==",
            "Subject": "SM update 24",
            "occurrenceId": "OID.AAMkADAGAADDdm4NAAA=.2020-05-21",
            "start": {
                "dateTime": "2020-05-21T11:30:00.0000000",
                "timeZone": "UTC"
            },
            "end": {
                "dateTime": "2020-05-21T12:00:00.0000000",
                "timeZone": "UTC"
            }
        }
    ]
}

Ref: https://learn.microsoft.com/en-us/graph/api/event-get?view=graph-rest-beta&tabs=http#example-4-expand-a-series-master-event

Upvotes: 0

AABhatt
AABhatt

Reputation: 53

I was trying to fetch event after getting notification when event cancelled. I am trying with notification resource url and it throws exception: Microsoft.Graph.ServiceException: Code: ErrorItemNotFound. What I was expecting that response with notfound status code rather than throwing exception.

My code for fetching event:

var request = new EventRequest(
                    $"{_graphClient.BaseUrl}/{notification.Resource}",
                    graphClientApp,
                    null);

                var message = await request.GetResponseAsync();

                var response = await message.GetResponseObjectAsync();

Upvotes: 0

Venkat Ayyadevara - MSFT
Venkat Ayyadevara - MSFT

Reputation: 2883

By design, when an event is canceled, it is deleted from the calendar. So, there isn't a way today to query list of events that are deleted. We have an item in our backlog for supporting deleted events, but no timeline.

Upvotes: 4

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