POSTing file to /media endpoint

I’m trying to upload an image using the /media end point.
I thought this would work

$.ajax({
    url:  'http://<my-domain>/wp-json/wp/v2/media/',
    headers: {
        'X-WP-Nonce'  : '<nonce-goes-here>',
        'Content-Type': 'undefined',
        'Content-Disposition': 'attachment;filename=<filename>'
    },
    type: 'POST',
    data: <file data>,
    cache: false,
    contentType: false,
    processData: false,
  });

https://wordpress.org/plugins/rest-api/