I want to access the entire events existing in a calendar of a gsuite domain. I tried using domain deligation with service account and it allows me to assume a user and get all of its events but i want to fetch the entire events in a gsuite account.
In order to achieve your task, you should create a service account which impersonates the admin of the domain.
Afterwards, you can retrieve the users of the domain by making use of the Admin SDK.
GET https://admin.googleapis.com/admin/directory/v1/users
Based on the list you get, you can get the events from the calendar of each user.
GET https://www.googleapis.com/calendar/v3/calendars/calendarId/events
Where, calendarId is the email of one of the users from the domain.