public async Task <CreateCommentResponse> Handle(CreateCommentRequest request, CancellationToken cancellationToken) { var createdComment = await commentService.CreateComment(request.Content, request.PostId) ?? throw new CrudException("Comment has not been created"); if (httpContextReader.CurrentUserId != createdComment.UserId) { await notifier.Push( NotificationMessages.NewCommentNotification(createdComment.User.Username, createdComment.Post.Title), createdComment.Post.AuthorId, NotificationType.NewComment); } return(new CreateCommentResponse { Comment = mapper.Map <CommentDto>(createdComment) }); }