Dart

List Google Calendars

See more Google Calendar Examples

Demonstrates how to list the Google Calendars for an account. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // This example uses a previously obtained access token having permission for the 
  // Google Calendar scope.

  // In this example, Get Google Calendar OAuth2 Access Token, the access
  // token was saved to a JSON file.  This example fetches the access token from the file..
  final jsonToken = CkJsonObject();
  jsonToken.loadFile('qa_data/tokens/googleCalendar.json');
  if (!jsonToken.hasMember('access_token')) {
    print('No access token found.');
    return;
  }

  final http = CkHttp();
  http.authToken = jsonToken.stringOf('access_token');

  final String jsonResponse;
  try {
    jsonResponse = http.quickGetStr('https://www.googleapis.com/calendar/v3/users/me/calendarList');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(jsonResponse);
  print('-----------------------------');

  // This is a sample JSON response:
  // (Sample code to iterate over the JSON response is shown below.)

  // {
  //  "kind": "calendar#calendarList",
  //  "etag": "\"p32cfpufit76da0g\"",
  //  "nextSyncToken": "CJj8-fLpzNUCEhhzdXBwb3J0QGNoaWxrYXRjbG91ZC5jb20=",
  //  "items": [
  //   {
  //    "kind": "calendar#calendarListEntry",
  //    "etag": "\"1465249947472000\"",
  //    "id": "support@chilkatcloud.com",
  //    "summary": "support@chilkatcloud.com",
  //    "timeZone": "America/Chicago",
  //    "colorId": "14",
  //    "backgroundColor": "#9fe1e7",
  //    "foregroundColor": "#000000",
  //    "selected": true,
  //    "accessRole": "owner",
  //    "defaultReminders": [
  //     {
  //      "method": "popup",
  //      "minutes": 10
  //     }
  //    ],
  //    "notificationSettings": {
  //     "notifications": [
  //      {
  //       "type": "eventCreation",
  //       "method": "email"
  //      },
  //      {
  //       "type": "eventChange",
  //       "method": "email"
  //      },
  //      {
  //       "type": "eventCancellation",
  //       "method": "email"
  //      },
  //      {
  //       "type": "eventResponse",
  //       "method": "email"
  //      }
  //     ]
  //    },
  //    "primary": true
  //   },
  //   {
  //    "kind": "calendar#calendarListEntry",
  //    "etag": "\"1502373382732000\"",
  //    "id": "#contacts@group.v.calendar.google.com",
  //    "summary": "Contacts",
  //    "timeZone": "America/Chicago",
  //    "colorId": "13",
  //    "backgroundColor": "#92e1c0",
  //    "foregroundColor": "#000000",
  //    "selected": true,
  //    "accessRole": "reader",
  //    "defaultReminders": []
  //   },
  //   {
  //    "kind": "calendar#calendarListEntry",
  //    "etag": "\"1502373376447000\"",
  //    "id": "en.usa#holiday@group.v.calendar.google.com",
  //    "summary": "Holidays in United States",
  //    "timeZone": "America/Chicago",
  //    "colorId": "8",
  //    "backgroundColor": "#16a765",
  //    "foregroundColor": "#000000",
  //    "selected": true,
  //    "accessRole": "reader",
  //    "defaultReminders": []
  //   }
  //  ]
  // }
  // 

  // Iterate over the JSON response..
  final json = CkJsonObject();
  json.load(jsonResponse);

  final numCalendars = json.sizeOfArray('items');
  var i = 0;
  while (i < numCalendars) {
    print('--- $i ---');
    json.i = i;
    print('kind: ${json.stringOf('items[i].kind')}');
    print('id: ${json.stringOf('items[i].id')}');

    // Examine the notification settings, if any..
    final numSettings = json.sizeOfArray('items[i].notificationSettings.notifications');
    if (numSettings > 0) {
      var j = 0;
      while (j < numSettings) {
        json.j = j;
        print('Notification Type: ${json.stringOf('items[i].notificationSettings.notifications[j].type')}');
        print('Notification Method: ${json.stringOf('items[i].notificationSettings.notifications[j].method')}');
        j++;
      }
    }

    i++;
  }
}