Help on how to get active login session using ddpclient

Hello, it’s me again. I just want to get some help or ideas on how to get any active login session from a separate meteor app to a separate NextJs app that is using a DDP client (asteroid or simpleddp). Basically, how will nextjs app through DDP knows that there is an active session on the meteor app? It might be a dumb question for some but I am dumb as hell and I haven’t tried asteroid or simpleddp, maybe the answer is right in front of my eyes or just fetching a login session from a database is the answer. Hmmm idk