Why is Google Calendar API (oauth2) responding with 'Insufficient Permission'?

Question

I\'m doing a get request to the following URL (with {id} replaced with the id from the web interface):

https://www.googleapis.com/calendar/v3/calendars/{id}
         


        

Answer 1

I had to include the Google Plus scope in order to have sufficent permission to access a calendar:

So my scope ended up looking like this:

'https://www.googleapis.com/auth/calendar', 'https://www.googleapis.com/auth/calendar.readonly', 'https://www.googleapis.com/auth/plus.login'