Add device to Azure AD Group

Question

I want to add a list of devices to a specific group in azure AD via the graph API.

I already have a list of both Device ID's and AADDeviceID's, but this endpoint only accepts objectids:
https://learn.microsoft.com/en-us/graph/api/group-post-members?view=graph-rest-1.0&tabs=http

So my question is, how do I get the ObjectID from Graph API

Bonus info:
This dosn't accept DeviceID
https://learn.microsoft.com/en-us/graph/api/device-get?view=graph-rest-1.0&tabs=http

Answer 1

The value you need is the "id", as returned from the GET /devices endpoint. Then pass the value in a /members/$ref POST request:

GET https://graph.microsoft.com/v1.0/devices?$select=displayName,id  
  
POST https://graph.microsoft.com/v1.0/groups/0d79d876-83a9-4845-bed8-a65e7633fb1b/members/$ref  
{  
    "@odata.id": "https://graph.microsoft.com/v1.0/directoryObjects/3cfaf4c5-4c2c-4f34-b160-6748e45b2c49"  
}