async function createEvent(req, res) {
    const calendarEvent = await gladys.calendar.createEvent(req.params.calendar_selector, req.body);
    res.status(201).json(calendarEvent);
  }
@api {post} /api/v1/calendar/:calendar_selector/event create event
@apiName create event
@apiGroup Calendar
@apiUse CalendarEventParam
@apiSuccessExample {json} Success-Example
{
  "id": "f014c7e2-4e7d-422d-ac83-02d688e686b0",
  "full_day": false,
  "name": "Code on Gladys",
  "start": "2019-02-11T23:00:00.000Z",
  "end": "2019-02-12T09:00:00.000Z",
  "selector": "code-on-gladys",
  "calendar_id": "8afba93a-e94f-4255-9d8b-db9e605e10b6",
  "updated_at": "2019-05-09T03:22:47.150Z",
  "created_at": "2019-05-09T03:22:47.150Z"
}