I am trying to set webhook notification for SharePoint Online drive using MS Graph API. The subscription is setup. Whenever I make any change in the drive by adding/deleting a file I get a notification but the resourceData is null. Is this standard behaviour?
{"value":[
{"subscriptionId":"XXX",
"clientState":"secretClientValue",
"tenantId":"XXX",
"resource":"drives/<id>/root",
"resourceData":null,
"changeType":"updated",
"subscriptionExpirationDateTime":"2019-01-22T18:23:45.9356913+00:00"
}
]
}
Thank you for any suggestions.