Submit Assignment via API

I followed the documentation here to submit a file ...

Uploading Files - Canvas LMS REST API Documentation

The end result is a file added to the user's personal file space, and I got back a file id. I can preview the file and I can download this file.

Then I want to use this file as assignment submission for the same user, which is done by this Canvas API.

Submissions - Canvas LMS REST API Documentation

But I am getting "No valid file ids given" error when calling that API. Can someone point me on the right path?

(code is in C#)

var url = $"https://{CanvasHost}/api/v1/courses/{CanvasCourseId}/assignments/{CanvasAssignmentId}/submissions?as_user_id={CanvasUserId}";var formData = new Dictionary{  {"comment[text_comment]", "submitted via FST"},  {"submission[submission_type]", "online_upload"},  {"submission[file_ids]", $"{fileSubmissionResult.CanvasFileId}"}};

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unknown

Hi Douglas

Just wondering if you managed to resolve that problem - I'm having the same issue with no luck

Thanks

unknown

Hi @d_tan ,

I am wondering how you went on this and if Peter's response above was able to help you out?

Cheers,

Stuart

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