Want to add event in google calendar

Question

I want to insert event in google calendar without using any third parties. Please help me if any one know it. Thanks in advance.

Answer 1

You want add some event in google calendar, well you can do this using by following google api library:I posted event to google calendar using below library.

https://github.com/google/google-api-objectivec-client-for-rest

They give brief description for adding event to google calendar with code. #pragma mark Add, Edit, and Delete an Event

- (void)addAnEvent {
  // Make a new event, and show it to the user to edit
  GTLRCalendar_Event *newEvent = [GTLRCalendar_Event object];
 newEvent.summary = @"Sample Added Event";
 newEvent.descriptionProperty = @"Description of sample added event";

 // We'll set the start time to now, and the end time to an hour from 
now,
  // with a reminder 10 minutes before
 NSDate *anHourFromNow = [NSDate dateWithTimeIntervalSinceNow:(60 * 60)];

 // Include an offset minutes that tells Google Calendar that these 
dates
  // are for the local time zone.
  NSInteger offsetMinutes = [NSTimeZone localTimeZone].secondsFromGMT / 60;

  GTLRDateTime *startDateTime = [GTLRDateTime dateTimeWithDate:[NSDate date]offsetMinutes:offsetMinutes];
GTLRDateTime *endDateTime = [GTLRDateTime dateTimeWithDate:anHourFromNow
                                       offsetMinutes:offsetMinutes];

newEvent.start = [GTLRCalendar_EventDateTime object];
newEvent.start.dateTime = startDateTime;

 newEvent.end = [GTLRCalendar_EventDateTime object];
 newEvent.end.dateTime = endDateTime;

  GTLRCalendar_EventReminder *reminder = [GTLRCalendar_EventReminder 
   object];
 reminder.minutes = @10;
reminder.method = @"email";

 newEvent.reminders = [GTLRCalendar_Event_Reminders object];
 newEvent.reminders.overrides = @[ reminder ];
 newEvent.reminders.useDefault = @NO;
  [self addEvent:event];}

- (void)addEvent:(GTLRCalendar_Event *)event {
 GTLRCalendarService *service = self.calendarService;
GTLRCalendar_CalendarListEntry *selectedCalendar = [self 
selectedCalendarListEntry];
 NSString *calendarID = selectedCalendar.identifier;

  GTLRCalendarQuery_EventsInsert *query =
     [GTLRCalendarQuery_EventsInsert queryWithObject:event
                                       calendarId:calendarID];
  self.editEventTicket = [service executeQuery:query
                         completionHandler:^(GTLRServiceTicket 
   *callbackTicket,
     GTLRCalendar_Event *event,
                                        NSError *callbackError) {
 // Callback
 self.editEventTicket = nil;
 if (callbackError == nil) {
   [self displayAlert:@"Event Added"
               format:@"Added event \"%@\"",
    event.summary];
   [self fetchSelectedCalendar];
    } else {
    [self displayAlert:@"Add failed"
               format:@"Event add failed: %@", callbackError];
     } }];

 }

- (void)editSelectedEvent {
 // Show the selected event to the user to edit
 GTLRCalendar_Event *eventToEdit = [self selectedEvent];
 if (eventToEdit) {
  EditEventWindowController *controller = [[EditEventWindowController 
alloc] init];
  [controller runModalForWindow:self.window
                        event:eventToEdit
              completionHandler:^(NSInteger returnCode, 
  GTLRCalendar_Event *event) {
              // Callback
              if (returnCode == NSModalResponseOK) {
                [self editSelectedEventWithEvent:event];
              }
            }];
     }
  }

Answer 2

Do you want to post or insert some event in google calendar, well you can do this using following :

Use https POST request, and make a NSURLSession request, using url

https://www.googleapis.com/calendar/v3/calendars/calendarId/events

after events, add your data.

Answer 3

If you want to insert an event in a specific time, then your request should look like this.

POST https://www.googleapis.com/calendar/v3/calendars/primary/events?key={YOUR_API_KEY}
{
"end": {
"dateTime": "2016-10-08T8:00:00",
"timeZone": "Asia/Manila"
},
"start": {
"dateTime": "2016-10-08T6:00:00",
"timeZone": "Asia/Manila"
}
}

You need to specify the start.dateTime and the end.dateTime in your request.

Include also the timeZone that you want to use. This API needs an IANA Time Zone Format that you can see in this link.