Is it possible to intercept the assignment submission?

joncarlson
Community Novice

I've built a tool with LTI 1.3 that works great within the assignment submission area.

However, the student has to click a tab for my tool in order to use it, it's disconnected from the assignment submission process.

My ideal flow would be: student uploads a file, Canvas sends the file to my tool which either responds with "success" or "error".

If "success", Canvas continues as normal with submitting the assignment.

If "error", Canvas halts submitting the assignment.

Is that flow possible in Canvas and/or with LTI 1.3? Thank you in advance

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