How to count unread messages in Microsoft Graph

Question

I'm trying to get a simple count of unread messages in a folder, but I'd like to just get a count without having to retrieve any of the message detail.

The closest I've got is something like this:

https://graph.microsoft.com/v1.0/users/{user}/mailFolders/Inbox/messages?$filter=isRead ne true&$count=true&$select=id&top=1

Notice that I'm including $select=id here, but I don't really want that - I'm just looking for a simple count.

Answer 1

Something like this is closer to what I need:

https://graph.microsoft.com/v1.0/users/{user}/mailFolders/Inbox

This gives some basic folder information for that folder, including the unreadItemCount.

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('{user}')/mailFolders/$entity",
    "id": "AAMkADQwNDkzY2MwLWRkODMtNDdkYS05MjNmLWI0YTA4OTNlN2U1ZgAuAAAAAABpELO9F64CS6YLKzHVeiwoAQDXOQANV1mvRZBdzyuZRD-5AAAAAAEMAAA=",
    "displayName": "Inbox",
    "parentFolderId": "AAMkADQwNDkzY2MwLWRkODMtNDdkYS05MjNmLWI0YTA4OTNlN2U1ZgAuAAAAAABpELO9F64CS6YLKzHVeiwoAQDXOQANV1mvRZBdzyuZRG-5AAAAAAEIAAA=",
    "childFolderCount": 0,
    "unreadItemCount": 1,
    "totalItemCount": 2
}