barcode.json

{
  "$jason": {
    "head": {
      "templates": {
        "body": {
          "background": {
            "type": "camera",
            "options": {
              "device": "back"
            }
          }
        }
      },
      "actions": {
        "$load": {
          "type": "$render"
        },
        "$vision.ready": {
          "type": "$vision.scan"
        },
        "$vision.onscan": {
          "type": "$util.alert",
          "options": {
            "title": "Scanned content: {{$jason.type}} ",
            "description": "{{$jason.content}}"
           }
        }
      }
    }
  }
}