Seem that this API https://docs.microsoft.com/en-us/graph/api/user-post-events?view=graph-rest-1.0&tabs=http Is possibile to use with Application Token..
But When I use this POST format :
/users/{id | userPrincipalName}/calendars/{id}/events
I imagine that the first id= is of the user 365
And the second id= id of calendar of this user example: https://graph.microsoft.com/v1.0/users/7abea3d2-9c59-4910-90c8-24a626a2ed0f/calendar/AAMkADRiNWMwZDIwLTNkNWMtNDlhZi04ODAxLTQyZjI0NGZjZjZiYgBGAAAAAADdzAdsxNzoS5NsTnjM9VXMBwDeKuBOt9H8SaQ6MfKsS4oyAAAAAAEGAADeKuBOt9H8SaQ6MfKsS4oyAAAAADKcAAA=/events
The result is this:
{
"error": {
"code": "BadRequest",
"message": "Resource not found for the segment 'AAMkADRiNWMwZDIwLTNkNWMtNDlhZi04ODAxLTQyZjI0NGZjZjZiYgBGAAAAAADdzAdsxNzoS5NsTnjM9VXMBwDeKuBOt9H8SaQ6MfKsS4oyAAAAAAEGAADeKuBOt9H8SaQ6MfKsS4oyAAAAADKcAAA='.",
"innerError": {
"request-id": "11055856-32b4-4485-bf28-23e380d9e4ed",
"date": "2020-05-27T13:22:23"
}
}
}
Have you any suggestion?