CODEWITHSUNDEEP
microsoft-graph-apiexchangewebservicesmicrosoft-graph-sdksmicrosoft-graph-teamsmicrosoft-graph-calendar
Croy
Croy

Reputation: 261

Get Change type in delta Events in Microsoft Graph Api

I am migrating from EWS to Microsoft graph and having problem in replacing flow "ExchangeService.syncFolderItems".

ChangeCollection<ItemChange> changedItems = exchangeService.syncFolderItems(calendarFolder.getId(),
FirstClassProperties, null, 512, NormalItems, syncState);

This gives me all the changes since last sync state with change type. Now I need to replace this with Microsoft graph.

I saw Get delta api in Microsoft graph and also how to call it recursively using stale token. My query is, Get delta api is not returning the change Item type. Could someone suggest me the best way to implement this in Microsoft graph? Maybe the Apis that I need to use for this?

Note:This flow will be called by my service to get changes after fixed interval of time. Also I saw subscriptions ( https://learn.microsoft.com/en-us/graph/api/resources/subscription?view=graph-rest-1.0 )but not sure that could be used in my case as my service will be making a call to get changes for a meeting room after a fixed scheduled interval of time.

I am stuck here. Please help. Thanks in advance.

Upvotes: 1

Views: 993

Answers (1)

baywet
baywet

Reputation: 5372

Deleted events will have a @removed property and only provide the id of the object as denoted here https://learn.microsoft.com/en-us/graph/delta-query-overview#resource-representation-in-the-delta-query-response

Updated objects will only include the updated properties and added objects should include all the data available. It's up to the 3rd party application (your app) to maintain a state on it's side to be able to differentiate between updated and created objects when using Delta queries.

Combining webhooks with Delta to trigger the sync instead of relying on a timer is a good approach to provide an end user experience that feels more real time

Upvotes: 1

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