title: Syncing your app calendar with google/outlook calendar
body: <p>I have a platform which allows artists to book appointments with Venues, basically rent their space. 
  As its a platform there are many venues that sign up with us. </p>
  
  <p>We have our own calendar using full calendar. </p>
  
  <p>I plan to integrate with Google calendar through calendar api for the venue, so all appointments done with us get synced with the venue, i m just stuck with how the authentication will work, because I plan to sync the calendar with a background process, it needs to be a 2 way communication, they change anything on their Google calendar it syncs with our calendar too. </p>
  
  <p>From what I see online, usually we sync calendars for the users that are logged in not for others.</p>