gistfile1.txt

{
    "application_id": "YOUR_APP_ID",
    "src": "https://s3.amazonaws.com/img.blitline/sky.jpg",
    "extended_metadata" : true,
    "functions": [
        {
            "name": "resize_to_fit",
            "params": {
                "width": 200
            },
            "save": {
                "image_identifier": "MY_CLIENT_ID"
            }
        }
    ]
}