Creating a LTI provider for Moodle

I'm trying to create a LTI provider for Moodle. The things that I need from Moodle - course name, students and teachers, as well as enabling a single sign on (getting the session, token, cookie...) I did a research and saw that Moodle 3 supports LTI v2, which is basically a why to communicate through REST API with Moodle, but didn't see an API ref for the optional endpoints, or code samples (looking for nodejs, but every other language will be welcome) Does anyone has experience with it? Thanks!