public async Task Handle(InsertBetQuerySideNotification notification, CancellationToken cancellationToken) { var bet = await _betRepository.GetByIdAsync(new BetId(notification.BetId)) ?? throw new BetUnknownException($"Bet with Id {notification.BetId} does not exists"); var member = await _memberRepository.GetByIdAsync(new MemberId(notification.MemberId)); var feeds = await _feedRepository.GetByIdsAsync(member.Subscriptions.Select(x => x.MemberId.Value)); foreach (var feed in feeds) { feed.Bets.Add(new Models.BetDto(bet.State)); } await _feedRepository.SaveAsync(feeds); }