Blitline convert command / resize

gistfile1.txt

//-filter is not required

{
    "application_id":"your app id",
    "src":"https://s3.amazonaws.com/img.blitline/sky.jpg",
    "functions":[
        {
            "name":"convert_command",
            "params":{
                "-resize" : "200%",
                "-filter" : "Lanczos"
            },
            "save":{
                "image_identifier":"some_id"
            }
        }
        ]
}