谷歌日历REST API错误

我想实现meteor.js到谷歌日历API一个简单的POST调用，我被困。我的要求是这样的：

I'm trying to implement a simple POST call in meteor.js to the Google Calendar API, and I'm stuck. My request looks like this:

var id = Meteor.http.post("https://www.googleapis.com/calendar/v3/calendars/", {
    'headers' : { 
      'Authorization': auth, // auth = "Bearer " + Meteor.user().services.google.accessToken
      'Content-Type': 'application/json' 
    },
    'parameters': {},
    'body' : { 
      'title': "Calendar Title",
    }
  });

和我得到以下错误：

Error: failed [400] {
    "error": {
        "errors": [{
            "domain": "global",
            "reason": "required",
            "message": "Missing title."
        }],
    "code": 400,
    "message": "Missing title."
    }
}

任何想法？