public async Task <List <TourDto> > Handle(GetToursQuery request, CancellationToken cancellationToken) { var pipeline = _pipelineBuilder .WithNode(new AgencyPipelineNode(request.Agencies)) .WithNode(new CategoryPipelineNode(request.Categories)) .WithNode(new NamePipelineNode(request.Name)) .WithNode(new PriceRangePipelineNode(request.MinPrice, request.MaxPrice)) .WithNode(new TimeOfTheYearPipelineNode(request.TimeOfTheYear)) .WithNode(new DestinationPointPipelineNode(request.DestinationPointId)) .Execute(); var filter = pipeline.Execute(); var sortOption = _sortOptionFactory.Create <Tour>(request.SortOption); var tours = await _toursRepository.FindAllAsync( filter, sortOption.Expression, sortOption.Direction, GetSkipValue(request.PageNumber, request.PageSize), request.PageSize); var toursDto = _mapper.Map <List <Tour>, List <TourDto> >(tours); return(toursDto); }