(Java) List Google Calendars

See more Google Calendar Examples

Demonstrates how to list the Google Calendars for an account.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // 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..
    CkJsonObject jsonToken = new CkJsonObject();
    boolean success = jsonToken.LoadFile("qa_data/tokens/googleCalendar.json");
    if (jsonToken.HasMember("access_token") == false) {
        System.out.println("No access token found.");
        return;
        }

    CkHttp http = new CkHttp();
    http.put_AuthToken(jsonToken.stringOf("access_token"));

    String jsonResponse = http.quickGetStr("https://www.googleapis.com/calendar/v3/users/me/calendarList");
    if (http.get_LastMethodSuccess() != true) {
        System.out.println(http.lastErrorText());
        return;
        }

    System.out.println(jsonResponse);
    System.out.println("-----------------------------");

    // 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..
    CkJsonObject json = new CkJsonObject();
    json.Load(jsonResponse);

    int numCalendars = json.SizeOfArray("items");
    int i = 0;
    while (i < numCalendars) {
        System.out.println("--- " + i + " ---");
        json.put_I(i);
        System.out.println("kind: " + json.stringOf("items[i].kind"));
        System.out.println("id: " + json.stringOf("items[i].id"));

        // Examine the notification settings, if any..
        int numSettings = json.SizeOfArray("items[i].notificationSettings.notifications");
        if (numSettings > 0) {
            int j = 0;
            while (j < numSettings) {
                json.put_J(j);
                System.out.println("Notification Type: " + json.stringOf("items[i].notificationSettings.notifications[j].type"));
                System.out.println("Notification Method: " + json.stringOf("items[i].notificationSettings.notifications[j].method"));
                j = j+1;
                }

            }

        i = i+1;
        }
  }
}