List AAD Groups with membership count

Question

Is there a way to get a list of AAD groups with membership count? With Graph API? Even if ConsistencyLevel=Eventual?

Like: /groups?$filter=startsWith(displayName,'MYPREFIX-WHATEVS')&$select=displayName,members/$count

Answer 1

Hi dear @Brian McCullough

There is something wrong with your API, because members is actually an expansion item and not a child item, so your API should be changed to: /groups?$filter=startsWith(displayName,'MYPREFIX-WHATEVS')&$select=displayName&$expand=members.

Since the expansion parameter $expand and the count parameter $count cannot be used together, your original API should remove the members parameter:

  GET https://graph.microsoft.com/beta/groups?$filter=startsWith(displayName,'MYPREFIX-WHATEVS')&$select=displayName,id&$count=true  
  ConsistencyLevel: eventual  

Or only count the number of members of a certain group:

https://graph.microsoft.com/beta/groups/{group object id}/members?$filter=startsWith(displayName,'MYPREFIX-WHATEVS')&$select=displayName,id&$count=true  
ConsistencyLevel: eventual  

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Answer 2

Got it:

$filter=startsWith(displayName,'MYPREFIX-WHATEVS')&$select=displayName&$expand=members($select=id,userPrincipalName,displayName)