In a course create a lesson with at least one content page and one question page. Enrol one user as student in the course where the lesson is. 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=8&wsfunction=mod_lesson_launch_attempt&wstoken=12a2a65aeea2a177055e233f9e303218&moodlewssettingfilter=true' | python -m "json.tool" Confirm you don't receive any exception Confirm that in the moodle database, in the lesson_timer table there is a new entry for the lesson with the starttime set to the current time Now, execute the same curl request but passing as parameter &pageid=X where X is the id of one of the lesson pages (check the lesson_pages table in db to get one) Confirm that in the lesson_timer table you don't see new entries but you see the existing entry for the lesson with the lessontime set to the current timestamp Finally, as admin, edit the lesson and as a password as restriction Execute again the WS passing the password as parameter (&password=X) and check that the lessontime is successfully updated