gistfile1.txt

{
    "application_id":"YOUR_APP_ID",
    "src":"https://s3.amazonaws.com/img.blitline/advanced_formats/canon_sample.cr2",
    "v" : 1.21,
    "functions":[
        {
            "name":"resize_to_fit",
            "params":{
                "gravity": "NorthGravity",
                "width":100,
                "height" : 200
            },
            "save":{
                "image_identifier":"MY_CLIENT_ID",
                "save_metadata" : true
            }
        }
    ]
}