uploadProgress is only called when upload is done

[willi]

uploadProgress in upload() is not called during upload, only after upload is complete. No way to track progress.

[pauloec]

No one to help?

[pappApproved]

It's working. I checked.
It's called after every chunk was uploaded. Regular chunk size is 5MB.
Chunks can be smaller if you use intelligent ingestion. Then we start from 8MB, but if connection is weak we start splitting it into smaller parts.
It can be called only once if file that you're trying to upload is smaller then that.

Best way to test it is to upload video files which are much bigger.