julian Thank you for the clarification. 🙏
I am using React.js for my frontend, and the NodeBB forum is just one module inside my overall project.
I understand now that I can use the master token + ?_uid= approach to call the NodeBB APIs directly, and maintain my own mapping between the Cognito sub and the NodeBB uid.
I was initially looking at the session-sharing plugin, but since I am not using the NodeBB frontend at all, I think the create-user API + master token flow might be a cleaner solution for me.
Could you please confirm if in my case hitting the create-user API and maintaining the mapping is better than trying to wire up session-sharing?