I'd like for my app to add/delete/update events on a user's Google Calendar. The app only needs to delete and update events that the app itself has added.
Have I understood it correctly, that in order for this to work, the users have to give the app full access to their Google Calendars, meaning that the app could potentially read and delete private events on any calendar?
Or, is there a way to limit the access that a user gives to the app, for example, allowing the app to create a single calendar and only giving it access to events on that one calendar?
I've read through the relevant Google Calendar API, and I'm not seeing that this is possible. However, giving full access seems crazy and unnecessary!
It seems that this isn't possible. Google, why!?
What I ended up doing was skipping the API and using a calendar subscription. Limited use since the user needs to be able to set up a subscription and, especially, because Google takes up to a day to update subscribed calendars.