LTI Custom Fields - Variable Expansion (Substrings)
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08-11-2023
12:43 PM
Does anybody have any ideas on sending over custom fields to an lti integration that contain substrings of an existing variable? I tried this to hopefully get 2 characters starting at the 10th location, but it just sent the entire field as a literal.
student_campus=${Canvas.user.sisIntegrationId:10:2}
I looked at https://github.com/instructure/canvas-lms/blob/master/lib/lti/variable_expander.rb#L26 but that's outside my knowledge zone right now.
