I just wanted to know a bit about how the LTI-development at Canvas is functioning. I am trying to make a LTI-plugin for Canvas, based on www.H5P.com.
-Does anyone know, if there is any way to communicate the users answers via LTI, to the gradebook? Or does it have to run through SCORM, or any other alternative ways?
Through the API you can grade both assignments and quizzes.
The assignments endpoint is here: Submissions - Canvas LMS REST API Documentation
The quiz endpoint is here: Quiz Submissions - Canvas LMS REST API Documentation
If you want to capture the student's answers, then the quiz submissions is your best bet, but is likely to be more complicated.