Posting Mentions to Teams using Graph
I'm putting this out there because it took me some time to figure out and at the time I couldn't find any documentation on how to use the Graph API to post a mention to a Teams channel: GET Team ID: https://graph.microsoft.com/beta/me/joinedTeams GET Channel ID: https://graph.microsoft.com/beta/teams/{team-id}/channels GET User ID: https://graph.microsoft.com/v1.0/me/people/?$search="Firstname Lastname" POST https://graph.microsoft.com/beta/teams{Team ID}/channels/{Channel ID}/messages (Include the BODY of the POST as below) Minimum JSON needed for body of the POST: { "body": { "contentType": "html", "content": "<at id=\"0\">Firstname Lastname</at>Boo" }, "attachments": [], "mentions": [ { "id": 0, "mentionText": "Firstname Lastname", "mentioned": { "application": null, "