Events

Session and sandbox lifecycle

Event	Meaning
lab.session_started	A user started a lab session
lab.session_ready	The session finished loading and the learner can enter it
lab.session_completed	The learner finished all of the session’s content. It does not mean the session stopped
lab.session_stopped	The session ended, whether the user stopped it, it went idle, or it hit its time limit
lab.session_failed	The session failed. Carries error
lab.sandbox_provisioning	Provisioning of the session’s sandbox started
lab.sandbox_provisioned	The sandbox is provisioned and ready. Carries cpus and memory
lab.sandbox_failed	The sandbox could not be provisioned. Carries error and error_type
lab.sandbox_destroying	Teardown of the sandbox started
lab.sandbox_destroyed	The sandbox is gone, which closes its billing window

Loading time

lab.session_started        the user asked for the lab
lab.sandbox_provisioning   provisioning began
lab.sandbox_provisioned    the sandbox is ready
lab.session_ready          the lab is usable

Progress

Event	Meaning
lab.task_unlocked	A task became available to the learner
lab.task_completed	The learner ran a task’s checks and every one of them passed
lab.task_failed	The learner ran a task’s checks and at least one did not pass. The learner can try again, so this repeats
lab.task_skipped	The learner skipped a task
lab.quiz_unlocked	A quiz became available to the learner
lab.quiz_completed	The learner answered every question in a quiz correctly
lab.quiz_failed	The learner answered a quiz and got at least one question wrong. The learner can try again, so this repeats
lab.quiz_skipped	The learner skipped a quiz
lab.page_unlocked	A page of the content became available to the learner
lab.page_completed	The learner finished every activity on a page
lab.page_skipped	The learner skipped a page, and with it every activity on that page
lab.chapter_unlocked	A chapter of the content became available to the learner
lab.chapter_completed	The learner finished every page in a chapter
lab.chapter_skipped	The learner skipped a chapter, and with it every page in that chapter

Tasks and quizzes are both activities, addressed by activity_id and distinguished by activity_type. Both count toward the same activity_index, so the numbering matches what the learner sees on screen.

Invite events

Event	Meaning
invite.claimed	A user claimed an invite