Diffing CURL Commands

[RobertGainer]

Hello,

We are trying to set up Diffing mode to run our SIS files and are using the below CURL command.

/usr/bin/curl --tlsv1.2 -H 'Content-Type: application/octet-stream' -F diffing_data_set_identifier=DiffID -F attachment=@/home/batch/Canvas/canvasfiles.zip --output /dev/null --write-out '%{http_code}' --stderr /tmp/CANVAS.07072021.7995592.err.canvasfiles.zip -H "Authorization: Bearer TOKEN" https://oursite.edu/api/v1/accounts/1/sis_imports.json?import_type=instructure_csv&extension=zip 

Unfortunately the files are not updating anything in the system. Does anyone see anything wrong with our CURL command that may be causing this issue to occur?

Thanks,

Robert