I want to send event invitation to Google user, using google calendar API.
I am using Google calendar API in php,
for inserting event in the google calendar .
I have used php-client libraries https://developers.google.com/google-apps/calendar/downloads
But problem with this is : it require login.
So how can I use this without login requirmnet ? or am missing something?
coz my aim is simply send invitation which should get added to Calendar (with or without notification)