I have been trying to play around with the Microsoft Graph API. I have a situation here. I have assigned some meeting rooms with an email ID and want to know the availability of all. If the rooms are available currently , I should get the name of the meeting room and if possible , the duration for which the room is available. I want to know how to query multiple rooms and return the data.
A bit confused about the following APIs, would these help ?
https://developer.microsoft.com/en-us/graph/docs/api-reference/beta/api/user_findmeetingtimes
GET https://graph.microsoft.com/beta/me/calendar
I have assigned some meeting rooms with an email ID and want to know the availability of all.
The findMeetingTimes API should suit your scenario. For the assigned meeting rooms, you can list them inside locationConstraint parameter of request body, for the assigned attendee email ID, you can add it to attendees parameter of request body. Then the response of this API will return a list of meeting time suggestions based on the meeting rooms are available and all attendees are available. And the the names of rooms available are listed on "locations" of every suggestion.
You can test this API with the example inside the document. My testing result:
Update:
Pay attention that check the permissions inside the document for using this API. Firstly, the account should be work or school account, personal Microsoft account is not supported. Secondly,you need to have Calendars.Read.Shared, Calendars.ReadWrite.Shared permissions.
来源：https://stackoverflow.com/questions/46139426/how-to-display-a-list-of-available-meeting-rooms-at-present-using-microsoft-grap