[Free Add-on ] Google Calendar API by Waindigo 1.0.3

About
This add-on adds the ability to sync events on XenForo to your Google Calendar.
This add-on syncs:

• User's birthdays
• Resource events (requires Resource Events by Waindigo)

This add-on requires you to have the Google API by Waindigo library installed.

To set up, you will need to have Google Integration set up on your site and have one of your accounts linked with Google. Enter the username of this account in the options for this add-on in the Admin Control Panel.

Once entered and saved, you will see a link to request the additional permissions required for editing calendars. In order for this link to work, you will need to make sure that you add the following link to your list of allowed referer URLs in your Google Developer settings for this project:
http://your.domain/path/admin.php?google/

Once your account is fully linked with Google, you will be able to set a default calendar for each content type listed and any future additions/changes/deletions to that content type will be synced to the selected calendar. To sync all existing content, go to:
Admin CP -> Tools -> Rebuild Caches -> Sync Google Calendar

For a contribution of any amount, you may install the add-on on a commercial site, and no additional add-ons are required to be installed. You can even use CSS or Javascript to hide the copyright notice.