const auth = GoogleAuth.createConnection();
           auth.setCredentials(tokens);
           const calendar = google.calendar({version: 'v3', auth});
           calendar.events.list({
               calendarId: 'primary',
               timeMin: (new Date()),
               maxResults: maxResult,
               singleEvents: true,
               orderBy: 'startTime',
           }, (err, result) => {
               if (err)
                   console.log('The API returned an error: ' + err);
               const events = result.data.items;
               if (events.length) {
                   var eventsArray = [];
                   console.log('Upcoming 10 events:');
                   events.map((event, i) => {
                       var dayArray = ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'];
                       var dayLongArray = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'];
                       var monthArray = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
                       var monthLongArray = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
                       var dateArray = event.start.dateTime || event.start.date;
                       dateArray = new Date(dateArray).toUTCString();
                       var dateSplit = dateArray.split(/[\s,]+/);
                       console.log('dateSplit:', dateSplit);
                       for (var i = 0; i < 7; i++) {
                           if (dateSplit[0] == dayArray[i]) {
                               dateSplit[0] = dayLongArray[i];
                               break;
                           }
                       }
                       for (var i = 0; i < 12; i++) {
                           if (dateSplit[2] == monthArray[i]) {
                               dateSplit[2] = monthLongArray[i];
                               break;
                           }
                       }
                       var date = dateSplit[0] + ' ' + dateSplit[1] + ' ' + dateSplit[2] + ' ' + dateSplit[3];
                       var date_time = dateSplit[4];
                       eventsArray.push ({
                         date: date,
                         date_time: date_time,
                         name: event.summary || '',
                         place:  event.location || ''
                       });
                   });
                   return res.send({
                       code: 200,
                       success: true,
                       nb: events.length,
                       eventsArray
                   });
               } else {
                   return res.send({
                       nb: events.length,
                       code: 200,
                       success: true,
                       message: 'No upcoming events found'
                   });
               }
           });