json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "additionalProperties": false,
      "properties": {
          "startdate": {
              "description": "Start date for the export, use pattern yyyy-MM-dd",
              "type": "string"
          },
          "enddate": {
              "description": "End date for the export, use pattern yyyy-MM-dd",
              "type": "string"
          },
          "format": {
              "description": "Export format",
              "type": "string",
              "enum": [
                  "PDF",
                  "ICAL"
              ]
          },
          "view": {
              "description": "View Rendering",
              "type": "string",
              "enum": [
                  "DAY",
                  "WEEK",
                  "LIST",
                  "NA"
              ]
          },
          "resourceIds": {
              "description": "Optional: List of resource ids if the user want to restrict export",
              "type": "array",
              "items": {
                  "type": "integer"
              },
              "additionalProperties": false,
              "minItems": 0
          }
      },
      "required": [
          "startdate",
          "enddate",
          "format",
          "view"
      ]
  }