json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "input-todo-schema",
      "description": "Schema of post data for creating a new todo",
      "type": "object",
      "properties": {
          "title": {
              "type": "string",
              "description": "The description of the new task",
              "minLength": 3,
              "maxLength": 255
          }
      },
      "required": ["title"]
  }
  