title: Google Apps for Work - Calendar API - Read All Organisation Employees Calendar
body: <p>In our organisation, we use "Google Apps for Work" and I need periodically export all employees calendar data for automated statistics calculations of their time spend on meetings.</p>
  
  <p>Could you hint me if it is possible?
  For now, <a href="https://developers.google.com/google-apps/calendar/quickstart/python" rel="nofollow">the official solution I found</a> require each user sign-in trough OAuth with granting permission to that my application to access their calendar, what is more, granted credentials will expire at some point.</p>
  
  <p>However I need to achieve the same result but as "back-end service" with admin privileges without User sign in and app approval, is it possible?
  Or google calendar considered to be a private thing even for "Google Apps for Work" and each user need to grant permissions individually?</p>
  
  <p>Thank you in advance!
  Regards</p>