PIAPS_CW/WebApp/Pages/Index.cshtml.cs

using Contracts.SearchModels;
using Contracts.ViewModels;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace WebApp.Pages
{
    [AllowAnonymous]
    public class IndexModel : PageModel
    {
        public List<ProductViewModel> ProductsModel { get; set; }
        public List<SaleViewModel> SalesModel { get; set; }
        public Dictionary<Guid, List<MediaFileViewModel>> MediaByProductsModel { get; set; }

        public void OnGet(double? pricefrom, double? priceto, string? search, string? category)
        {
            string request = "Product/GetList";
            if (!string.IsNullOrEmpty(search))
                request += $"?search={search}&";

            if (!string.IsNullOrEmpty(category))
                request += $"?category={category}&";

            if (pricefrom != null)
                request += $"?pricefrom={pricefrom}&";

            if (priceto != null)
                request += $"?priceto={priceto}";

            ProductsModel = APIClient.GetRequest<List<ProductViewModel>>(request);
            MediaByProductsModel = APIClient.GetRequest<Dictionary<Guid, List<MediaFileViewModel>>>($"MediaFile/GetByProducts");

            SalesModel = APIClient.GetRequest<List<SaleViewModel>>($"Sale/GetList");
        }
        public byte[] GetMediaByProduct(ProductViewModel productModel)
        {
            MediaByProductsModel.TryGetValue(productModel.Id, out List<MediaFileViewModel> models);
            return models[0].Image;
        }
    }
}