{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "definitions": {
    "qr_request": {
      "type": "object",
      "stream_label": {
        "type": "string"
      },
      "qr_request_label": {
        "type": "string"
      },
      "top_left": {
        "type": "string"
      },
      "bottom_right": {
        "type": "string"
      },
      "scanning_duration": {
        "type": "number"
      },
      "required": [
        "stream_label",
        "top_left",
        "bottom_right",
        "qr_request_label",
        "scanning_duration"
      ]
    }
  }
}