How to get all user attributes from azure active directory using Microsoft Graph api

Question

I am using Microsoft Graph to get all azure active directory users but this api is not returning on-premises attributes , let me know how we can get all attributes(source anchor, onPremisesUserPrincipleName, onPremisesSamAccount, etc).

Answer 1

Graph API by default only returns a limited set of properties( businessPhones, displayName, givenName, id, jobTitle, mail, mobilePhone, officeLocation, preferredLanguage, surname, userPrincipalName).

To return an alternative property set, you must specify the desired set of user properties using the OData $select query parameter. For example, to return displayName, givenName, etc. (This is from the documentation here.)

Also, When configuring Azure AD Connect there is a step that allows you to specify additional attributes that you wish to be replicated to Azure AD.\