Free/Busy URL for Outlook

Hi,

I tried to search for a long time for an answer to this but without success. I need a freebusy url (for all user calendar that are not shared by someone else) to allow Outlook to access this information (by user full Name) when trying to organize a meeting.

The obtained freebusy informations will need to be like this :

BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook 16.0 MIMEDIR//EN
VERSION:2.0
METHOD:PUBLISH
BEGIN:VFREEBUSY
ORGANIZER:someone@somedomaine.com
DTSTAMP:20210103T235558Z
DTSTART:20201227T230000Z
DTEND:20210228T230000Z
FREEBUSY:20210105T070000Z/20210105T073000Z
FREEBUSY:20210106T070000Z/20210106T073000Z
FREEBUSY:20210107T070000Z/20210107T073000Z
END:VFREEBUSY
END:VCALENDAR

and obtain it using an URL like :

https://somedomaine.com/nextcloud/freebusy.php/%NAME%

My questions are :

Is there already such URL but perhaps not compatible with Outlook? If then I will try to understand how it works and adapt it if my programmers skills are good enough.

Is there a way, using an API to get such information or perhaps the full calendar of a user, as an admin to create such URL?

Is there already something on Nextcloud and if yes, can I please receive the URL and perhaps the way to enable it.

Thanks in advance for your time and answers.

Best regards.

Blaise Drayer

The issue names no implementation files or tests. Start by checking existing Nextcloud Calendar free/busy, calendar-sharing, and CalDAV endpoints against the requested Outlook VFREEBUSY response, then define the intended URL or API behavior for unshared user calendars and how Outlook access would be verified.