Please return the id property for users of a given group in a portal.
If fetching the users for a given group, the current response is:
{
"username": "username1",
"fullName": "First1 Last1",
"memberType": "member",
"thumbnail": null,
"joined": 1460497506000
}
Adding the user id value would provide for more effective relationships between user and group objects when using the REST or Python APIs.
User—ArcGIS REST API | ArcGIS for Developers
{
"username": "<username>",
"id": "<user id>",
"fullName": "<first name> <last name>",
"availableCredits": <available credits>,
"assignedCredits": <allocated credits>,
"firstName": "<first name>",
"lastName": "<last name>",
}
Edited to add additional syntax and revised property name from userId to id