Hi,
I'm also trying to get past events a member has attended. I was able to get their future events at /rest/me/events via OAuth. And from the documentation, it sounds like I could use the /rest/member/{id} endpoint below to get the registration history. But when I tried to access the endpoint via OAuth, I got 401; does this mean the endpoint doesn't work with OAuth, and I would need to use username:password to authenticate? I only have the OAuth credentials from the dev team right now.
GET /rest/members/{member_id}
Return a single member
Registration history may be included in partial response by passing ?fields=history in URL
Thanks,
Eric