I'm working on one school app. I'm able to create events using google calender API with NodeJS. I created the clientID and secretID on the school google account. Every time event is created, only the admin has access to start the meeting. But I want teachers(who are creating the event) to be the organizer. How can I achieve this?
The organizer field of an event is a read-only field. You can use the move action to move the event and change the organizer but this can only be done if the authenticated user has write access to the destination calendar.
A solution would be to use a service account and perform domain wide delegation. In this way you will be able to impersonate the user in question and organize the event wanted.
According to the Service accounts documentation:
A service account is a special kind of account used by an application or a virtual machine (VM) instance, not a person. Applications use service accounts to make authorized API calls.
As for performing domain-wide delegation, you might want to take a look into this:
In enterprise applications you may want to programmatically access users data without any manual authorization on their part. In G Suite domains, the domain administrator can grant to third party applications domain-wide access to its users' data — this is referred as domain-wide delegation of authority. To delegate authority this way, domain administrators can use service accounts with OAuth 2.0.