更新MS Teams在线会议后User Principal显示为参与者的问题

更新OnlineMeeting后，服务主体（User Principal）会作为参与者出现在会议的参与者列表中。

更新在线会议的逻辑 #

• 创建包含OnlineMeeting的日历事件（此时未添加任何参会用户）

var eventObject = new Event()
{
    Start = DateTimeTimeZone.FromDateTimeOffset(startTime),
    End = DateTimeTimeZone.FromDateTimeOffset(endTime),
    Subject = request.Subject,
    IsOnlineMeeting = true,
    OnlineMeetingProvider = OnlineMeetingProviderType.TeamsForBusiness
};

var e = await _graphClient.Users[UserPrincipalName]
         .Calendar.Events.Request().AddAsync(eventObject);

• 获取用户主体ID

var userPrincipalFilter = $"userPrincipalName eq '{userPrincipalName}'";

var userPrincipalById = _graphClient.Users[userPrincipalName].Request()
    .GetAsync().ConfigureAwait(false).GetAwaiter().GetResult().Id;

• 通过JoinWebUrl获取对应事件的OnlineMeeting实例

var meeting= _graphClient.Users[userPrincipalId].OnlineMeetings.Request().Filter(meetingFilter).GetAsync().ConfigureAwait(false).GetAwaiter().GetResult().FirstOrDefault();

• 更新已创建的在线会议

OnlineMeeting meetingUpdate = new OnlineMeeting()
{
                LobbyBypassSettings = new LobbyBypassSettings()
                {
                    Scope = LobbyBypassScope.Everyone,
                    IsDialInBypassEnabled = true
                },
                IsEntryExitAnnounced = true,
                AllowMeetingChat = MeetingChatMode.Limited,
                RecordAutomatically = false,
};
var updatedMeeting = _graphClient.Users[userPrincipalId].OnlineMeetings[meeting.Id].Request().UpdateAsync(meetingUpdate)
.ConfigureAwait(false).GetAwaiter().GetResult();

• 为了通过JoinWebUrl获取在线会议，需配置策略“允许应用代表服务主体邮箱访问在线会议”，可参考微软官方文档中的对应配置步骤。

内容的提问来源于stack exchange，提问作者manojmore