Google Calendar

  • The provided code snippets demonstrate how to interact with a user's Google Calendar using the Calendar API.

  • You can list all events for the current day on the primary calendar, retrieving details like summary and start time.

  • There is a function to retrieve a list of all calendars associated with the current user, including their ID and description.

  • The code also shows how to create a new event on a specified calendar with details like summary, description, start and end times, attendees, and color.

List today's events on primary calendar

 function 
  
 listAllEventsForToday 
 () 
  
 { 
  
 var 
  
 calendarId 
  
 = 
  
 'primary' 
 ; 
  
 var 
  
 now 
  
 = 
  
 new 
  
 Date 
 (); 
  
 var 
  
 startOfToday 
  
 = 
  
 new 
  
 Date 
 ( 
 now 
 . 
 getYear 
 (), 
  
 now 
 . 
 getMonth 
 (), 
  
 now 
 . 
 getDate 
 (), 
  
 0 
 , 
  
 0 
 , 
  
 0 
 ); 
  
 var 
  
 endOfToday 
  
 = 
  
 new 
  
 Date 
 ( 
 now 
 . 
 getYear 
 (), 
  
 now 
 . 
 getMonth 
 (), 
  
 now 
 . 
 getDate 
 (), 
  
 23 
 , 
  
 59 
 , 
  
 29 
 ); 
  
 var 
  
 calendarEvents 
  
 = 
  
 Calendar 
 . 
 Events 
 . 
 list 
 ( 
 calendarId 
 , 
  
 { 
  
 timeMin 
 : 
  
 startOfToday 
 . 
 toISOString 
 (), 
  
 timeMax 
 : 
  
 endOfToday 
 . 
 toISOString 
 (), 
  
 singleEvents 
 : 
  
 true 
 , 
  
 orderBy 
 : 
  
 'startTime' 
  
 } 
 ); 
  
 if 
  
 ( 
 calendarEvents 
 . 
 items 
 && 
 calendarEvents 
 . 
 items 
 . 
 length 
 > 
 0 
 ) 
  
 { 
  
 for 
  
 ( 
 var 
  
 i 
  
 = 
  
 0 
 ; 
  
 i 
 < 
 calendarEvents 
 . 
 items 
 . 
 length 
 ; 
  
 i 
 ++ 
 ) 
  
 { 
  
 var 
  
 calendarEvent 
  
 = 
  
 calendarEvents 
 . 
 items 
 [ 
 i 
 ] 
 ; 
  
 if 
  
 ( 
 calendarEvent 
 . 
 start 
 . 
 date 
 ) 
  
 { 
  
 // 
  
 All 
 - 
 day 
  
 event 
 . 
  
 var 
  
 start 
  
 = 
  
 parseDate 
 ( 
 calendarEvent 
 . 
 start 
 . 
 date 
 ); 
  
 console 
 . 
 log 
 ( 
 '%s (%s)' 
 , 
  
 calendarEvent 
 . 
 summary 
 , 
  
 start 
 . 
 toLocaleDateString 
 ()); 
  
 } 
  
 else 
  
 { 
  
 var 
  
 start 
  
 = 
  
 parseDate 
 ( 
 calendarEvent 
 . 
 start 
 . 
 dateTime 
 ); 
  
 console 
 . 
 log 
 ( 
 '%s (%s)' 
 , 
  
 calendarEvent 
 . 
 summary 
 , 
  
 start 
 . 
 toLocaleString 
 ()); 
  
 } 
  
 } 
  
 } 
  
 else 
  
 { 
  
 console 
 . 
 log 
 ( 
 'No events found.' 
 ); 
  
 } 
 } 

Get all of the current user's calendars

 function 
  
 getAllCalendars 
 () 
  
 { 
  
 var 
  
 calendarList 
  
 = 
  
 Calendar 
 . 
 CalendarList 
 . 
 list 
 (); 
  
 for 
  
 ( 
 var 
  
 i 
  
 = 
  
 0 
 ; 
  
 i 
 < 
 calendarList 
 . 
 items 
 . 
 length 
 ; 
  
 i 
 ++ 
 ) 
  
 { 
  
 var 
  
 calendar 
  
 = 
  
 calendarList 
 . 
 items 
 [ 
 i 
 ] 
 ; 
  
 console 
 . 
 log 
 ( 
 '%s, %s' 
 , 
  
 calendar 
 . 
 id 
 , 
  
 calendar 
 . 
 description 
 ); 
  
 } 
 } 

Create event on one of the current user's calendar

 function 
  
 createEvent 
 () 
  
 { 
  
 // 
  
 You 
  
 can 
  
 find 
  
 a 
  
 Google 
  
 Calendar 
 's ID from its settings page. 
  
 var 
  
 calendarId 
  
 = 
  
 'INSERT_CALENDAR_ID_HERE' 
 ; 
  
 // 
  
 Nov 
  
 1 
 , 
  
 2014 
  
 10 
 : 
 00 
 : 
 00 
  
 AM 
  
 var 
  
 start 
  
 = 
  
 new 
  
 Date 
 ( 
 2014 
 , 
  
 10 
 , 
  
 1 
 , 
  
 10 
 , 
  
 0 
 , 
  
 0 
 ); 
  
 // 
  
 Nov 
  
 1 
 , 
  
 2014 
  
 11 
 : 
 00 
 : 
 00 
  
 AM 
  
 var 
  
 end 
  
 = 
  
 new 
  
 Date 
 ( 
 2014 
 , 
  
 10 
 , 
  
 1 
 , 
  
 11 
 , 
  
 0 
 , 
  
 0 
 ); 
  
 var 
  
 calendarEvent 
  
 = 
  
 { 
  
 summary 
 : 
  
 'Run account performance report' 
 , 
  
 description 
 : 
  
 'Run account performance report for Oct.' 
 , 
  
 start 
 : 
  
 { 
  
 dateTime 
 : 
  
 start 
 . 
 toISOString 
 () 
  
 }, 
  
 end 
 : 
  
 { 
  
 dateTime 
 : 
  
 end 
 . 
 toISOString 
 () 
  
 }, 
  
 attendees 
 : 
  
 [ 
  
 { 
 email 
 : 
  
 'alice@example.com' 
 }, 
  
 { 
 email 
 : 
  
 'bob@example.com' 
 } 
  
 ], 
  
 // 
  
 Red 
  
 background 
 . 
  
 Use 
  
 Calendar 
 . 
 Colors 
 . 
 get 
 () 
  
 for 
  
 the 
  
 full 
  
 list 
 . 
  
 colorId 
 : 
  
 11 
  
 }; 
  
 calendarEvent 
  
 = 
  
 Calendar 
 . 
 Events 
 . 
 insert 
 ( 
 calendarEvent 
 , 
  
 calendarId 
 ); 
  
 console 
 . 
 log 
 ( 
 'New event with ID = 
 %s 
 was created.' 
  
 + 
  
 calendarEvent 
 . 
 getId 
 ()); 
 } 
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