In a course create a lesson with at least two content pages and one question page, configured to allow multiple attempts. Enrol one user as student in the course where the lesson is. Attempt the lesson as the student a couple of times. As admin, enable "Mobile services": Site administration ► Mobile app ► Mobile settings Create a Token for the student user Click on Site administration ► Plugins ► Web services ► Manage tokens Next, you can do a CURL REST call simulating a WS client with the student user . You need to replace the wstoken, lessonid (the lesson instance value) and the URL of your moodle instance curl 'http://localhost/m/stable_master/webservice/rest/server.php?moodlewsrestformat=json' --data 'lessonid=5&lessonattempt=0&wsfunction=mod_lesson_get_content_pages_viewed&wstoken=12a2a65aeea2a177055e233f9e303218&moodlewssettingfilter=true' | python -m "json.tool" Confirm that you receive correctly the list of pages viewed. Now, create a token for a teacher in the course and execute again the curl request appending: &userid=X (X is the id of the student user who attempted the lesson) Confirm that you receive correctly the list of pages