I am using PowerShell to subscribe Graph notification with rich (resource) data, but the response doesn't contains the field that I need

Question

I am using below PS command to subscribe Graph with resource data (email unique id and email subject)

New-MgSubscription -ChangeType "created" `
-NotificationUrl "https://******.azurewebsites.net/api/webhook" `
-ExpirationDateTime (Get-Date).AddMinutes(4000) `
-ClientState "secretClientValue" `
-Resource '/users/user@example.com/mailfolders/mailfolderId/messages?$select=id,subject'`
-IncludeResourceData `
-EncryptionCertificate "Base64encodePublicKey" `
-EncryptionCertificateId "https://****cert.vault.azure.net/certificates/cert****"

The expect response from Graph is contains the email ID and subject

But when I decrypt the response data, I can only get the JSON which contains subject only, I need email ID as well.

{"subject":"RE: TestEmail"}

Answer 1

Hi HGZL (Nick Hongzheng Li)

Thanks for reaching out.

When you create a subscription in order to get resource data (rich notification), You will get the resource data in the field called encryptedContent.

In order to get the resource id, which in your case is message Id. You need to read resource field as well from the notification object.

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