@thinhCoding said:
Create user via API
Hi everyone,
I'm newbie and still study how to build web app.
I want to know if I can allow new user who use my building app to create an account and get accessToken?
Then that user can use some features like add Favourite List, and they can see it.
Thank you.

It is not possible to create a TMDb account using our API service.
It is only possible through the website, through the WEB interface.

What is possible is for you to create Sessions for your users to interact.
https://developer.themoviedb.org/docs/authentication-user
https://developer.themoviedb.org/docs/authentication-guest-sessions