public async Task <IEnumerable <RoomDetails> > GetAllRoomsAsync()
{
ResourceSet <RoomResource> rooms = await RoomResource.ReadAsync();
IEnumerable <Task <RoomDetails> > tasks = rooms.Select(
room => GetRoomDetailsAsync(
room,
ParticipantResource.ReadAsync(
room.Sid,
ParticipantStatus.Connected)));
return(await Task.WhenAll(tasks));
}