(Perl) List Google Calendars

See more Google Calendar Examples

Demonstrates how to list the Google Calendars for an account.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# 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..
$jsonToken = chilkat::CkJsonObject->new();
$success = $jsonToken->LoadFile("qa_data/tokens/googleCalendar.json");
if ($jsonToken->HasMember("access_token") == 0) {
    print "No access token found." . "\r\n";
    exit;
}

$http = chilkat::CkHttp->new();
$http->put_AuthToken($jsonToken->stringOf("access_token"));

$jsonResponse = $http->quickGetStr("https://www.googleapis.com/calendar/v3/users/me/calendarList");
if ($http->get_LastMethodSuccess() != 1) {
    print $http->lastErrorText() . "\r\n";
    exit;
}

print $jsonResponse . "\r\n";
print "-----------------------------" . "\r\n";

# 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..
$json = chilkat::CkJsonObject->new();
$json->Load($jsonResponse);

$numCalendars = $json->SizeOfArray("items");
$i = 0;
while ($i < $numCalendars) {
    print "--- " . $i . " ---" . "\r\n";
    $json->put_I($i);
    print "kind: " . $json->stringOf("items[i].kind") . "\r\n";
    print "id: " . $json->stringOf("items[i].id") . "\r\n";

    # Examine the notification settings, if any..
    $numSettings = $json->SizeOfArray("items[i].notificationSettings.notifications");
    if ($numSettings > 0) {
        $j = 0;
        while ($j < $numSettings) {
            $json->put_J($j);
            print "Notification Type: " . $json->stringOf("items[i].notificationSettings.notifications[j].type") . "\r\n";
            print "Notification Method: " . $json->stringOf("items[i].notificationSettings.notifications[j].method") . "\r\n";
            $j = $j + 1;
        }

    }

    $i = $i + 1;
}