How to upload an image to Media Library using HTTP POST request?

How to upload an image to the Media Library using an HTTP POST request?
I can't upload an image to the Media Library to later be able to use the image hash to create an ad.
I tried using the Graph Explorer: curl \ -F 'filename=@' \ -F 'access_token=' \ https://graph.facebook.com/v/act_/adimages
And also tried to use Make/Integromat with the HTTP Get a File module and then using the Make a Request module to make the following request:
{ "access_token": "", "filename": "{{41.data}}" }