如何从谷歌日历 API 中的用户获取日期和时间？

Question

I am using google API to create some events in google calendar. I need to get the date and time from the user input. This might be my logic issue but I can't figure it out. Here is my code:

var dateTime;

app.post('/', function (req, res) {
    res.render('index');
    var date = req.body.date;  //I get date from user
    var time = req.body.time;  // I get time from user
    dateTime = date +'T'+ time+":00"; //trying to create the RFC3339 fromat
    console.log("date time: ",dateTime);
    createEvents(jwtClient);
  }); 

 var event = {    
  'start': {
      'dateTime': dateTime,
      'timeZone': 'America/Los_Angeles',
  },
  'end': {
     'dateTime': '2020-06-12T12:00:00',
     'timeZone': 'America/Los_Angeles',
  },

 'conferenceData': {
    'createRequest': {
      'conferenceSolutionKey': {
        'type': 'hangoutsMeet'
        },
     'requestId': 'iyfuted65e3ers'

    }
  },

'attendees': [
  {'email': 'test@test.com'},
  {'email': 'jhfk@test.com'},
],
'reminders': {
  'useDefault': false,
  'overrides': [
    {'method': 'email', 'minutes': 24 * 60},
    {'method': 'popup', 'minutes': 10},
   ],
  },
};


 //Create Appointment
  function createEvents(auth) {
    const calendar = google.calendar({ version: 'v3', auth });
    calendar.events.insert({
        calendarId: 'primary',
        conferenceDataVersion: 1,
        resource: event,
    }, (err, res) => {
       if (err) return console.log('The API returned an error: ' + err);
         else {
        result = res.data.hangoutLink;
        console.log(result," start date: ", event.start.dateTime);

       }
    });
 }

when I print the dateTime in my post section it is the right date that user entered but it does not recognize it in event variable. and I get this error message:

Error: Start and end times must either both be date or both be dateTime.

I also have another question, how can I add an hour to start time and use it for end time?

You can see the text fields that user can enter the date and time here

Answer 1

UPDATE:

The RFC3339 formatted string expects the time in the format hh:mm:ss .

Sample how to convert time object in the format hh-mm into an RFC3339 formatted string:

  var date = req.body.date;  //I get date from user
  var time = req.body.time;  // I get time from user
  time = time.split("-")[0] + ":" + time.split("-")[0];
  var dateTime = date +'T'+ time+ ":00"; 

• Start and end times of Google Calendar events must be formatted according to RFC3339
• You can retrieve the time with new Date()
• If you need to retrieve the client time zone and correct it manually to the desired timezone, you can use getTimeZoneOffset()

I did not quite understand how you want to process the user time zone, but here are two samples showing what is possible:

  var now = new Date();
  Logger.log("Current time:" + now);
  var dateTime = new Date(now.getTime()).toISOString().split(".")[0];
  Logger.log(dateTime);
  var event = {    
   'start': {
      'dateTime': dateTime,
      'timeZone': 'America/Los_Angeles',
  },
   'end': {
     'dateTime': '2020-06-12T12:00:00',
     'timeZone': 'America/Los_Angeles',
  },
...

  var now = new Date();
  Logger.log("Current time:" + now);
  var offset = new Date().getTimezoneOffset();
  offset = (offset / (-60));
  if (offset < 10) {
    offset =  '0'+offset;
  }
  offset = '+' + offset + ':00';
  var dateTime = new Date(now.getTime()-new Date().getTimezoneOffset()*60*1000).toISOString().split(".")[0] + offset;
  Logger.log(dateTime);
  var event = {    
    'start': {
      'dateTime': dateTime
    },
   'end': {
     'dateTime': '2020-06-12T12:00:00-07:00'
   },