Calendar Access using Graph API - microsoft-graph-api

Question

We have an application for the user to book/Edit/Cancel Room mailbox meeting from the portal.
So the user should be able to create a calendar event in the room mailbox and all participants should receive the meeting invite
Could you please advise What permission is required on Graph API other than "Calendars.ReadWrite"

Answer 1

According to the document about creating an online meeting, I tried to call the api and it worked with Calendars.ReadWrite permission, here's the detail.
Creating an Azure Ad app and add api permission
Get the access token , please note I just set ReadWrite as scope.
Call the api according to the document above and will get success response, you can open outlook and find meeting has created in calendar.
And here is my url and parameter:
Post:https://graph.microsoft.com/v1.0/me/events
Authorization:Bearer <access token>
Prefer：outlook.timezone="Pacific Standard Time"
Content-Type：application/json
body：{
"subject": "Prep for customer meeting",
"body": {
"contentType": "HTML",
"content": "Does this time work for you?"
},
"start": {
"dateTime": "2020-11-20T13:00:00",
"timeZone": "Pacific Standard Time"
},
"end": {
"dateTime": "2020-11-20T14:00:00",
"timeZone": "Pacific Standard Time"
},
"location":{
"displayName":"Cordova conference room"
},
"attendees": [
{
"emailAddress": {
"address":"AdeleV#contoso.OnMicrosoft.com",
"name": "Adele Vance"
},
"type": "required"
}
],
"allowNewTimeProposals": true,
"isOnlineMeeting": true,
"onlineMeetingProvider": "teamsForBusiness"
}