Implement gRPC search service

Dockerfile

@@ -7,7 +7,8 @@ RUN dotnet publish -c Release -o out
 
 FROM mcr.microsoft.com/dotnet/aspnet:6.0
 EXPOSE 5000
+EXPOSE 43000
 WORKDIR /app
 COPY  --from=build /app/out .
 ENV ASPNETCORE_ENVIRONMENT Production
-ENTRYPOINT [ "dotnet", "RhSolutions.Api.dll", "--urls=http://0.0.0.0:5000" ]
+ENTRYPOINT [ "dotnet", "RhSolutions.Api.dll" ]

RhSolutions.Api.Tests/ProductQueryModifierTests.cs

@@ -1,6 +1,3 @@
-using System.Web;
-using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Primitives;
 public abstract class ProductQueryModifierTests
 {
 	protected ProductQueryModifierFactory _factory;
@@ -10,17 +7,10 @@ public abstract class ProductQueryModifierTests
 	{
 		_factory = new ProductQueryModifierFactory();
 	}
-	public void Execute(string productType, string query, string modified)
+	public void Execute(string productType, string query, string expected)
 	{
-		Dictionary<string, StringValues> queryPair = new()
-		{
-			["query"] = new StringValues(query)
-		};
-		QueryCollection collection = new(queryPair);		
 		var modifier = _factory.GetModifier(productType);		
-		
-		Assert.True(modifier.TryQueryModify(collection, out var actual));
-		string? result = HttpUtility.ParseQueryString(actual.ToString())["query"];
-		Assert.That(result, Is.EqualTo(modified));
+		Assert.True(modifier.TryQueryModify(query, out var actual));
+		Assert.That(actual, Is.EqualTo(expected));
 	}
 }

RhSolutions.Api/Controllers/ProductsController.cs

@@ -5,78 +5,78 @@ using System.Linq;
 
 namespace RhSolutions.Api.Controllers
 {
-    [Route("api/[controller]")]
-    public class ProductsController : ControllerBase
-    {
-        private RhSolutionsContext dbContext;
-        private IPricelistParser parser;
+	[Route("api/[controller]")]
+	public class ProductsController : ControllerBase
+	{
+		private RhSolutionsContext dbContext;
+		private IPricelistParser parser;
 
-        public ProductsController(RhSolutionsContext dbContext, IPricelistParser parser)
-        {
-            this.dbContext = dbContext;
-            this.parser = parser;
-        }
+		public ProductsController(RhSolutionsContext dbContext, IPricelistParser parser)
+		{
+			this.dbContext = dbContext;
+			this.parser = parser;
+		}
 
-        [HttpGet]
-        public IAsyncEnumerable<Product> GetProducts()
-        {
-            return dbContext.Products
-                .AsAsyncEnumerable();
-        }
+		[HttpGet]
+		public IAsyncEnumerable<Product> GetProducts()
+		{
+			return dbContext.Products
+				.AsAsyncEnumerable();
+		}
 
-        [HttpGet("{id}")]
-        public IEnumerable<Product> GetProduct(string id)
-        {
-            return dbContext.Products
-                .Where(p => p.Id.Equals(id));
-        }
+		[HttpGet("{id}")]
+		public IEnumerable<Product> GetProduct(string id)
+		{
+			return dbContext.Products
+				.Where(p => p.Id.Equals(id));
+		}
 
-        [HttpPost]
-        public IActionResult PostProductsFromXls()
-        {
-            try
-            {
-                var products = parser.GetProducts(HttpContext).GroupBy(p => p.ProductSku)
-                    .Select(g => new Product(g.Key)
-                    {
-                        Name = g.First().Name,
-                        DeprecatedSkus = g.SelectMany(p => p.DeprecatedSkus).Distinct().ToList(),
-                        ProductLines = g.SelectMany(p => p.ProductLines).Distinct().ToList(),
-                        IsOnWarehouse = g.Any(p => p.IsOnWarehouse == true),
-                        ProductMeasure = g.First().ProductMeasure,
-                        DeliveryMakeUp = g.First().DeliveryMakeUp,
-                        Price = g.First().Price
-                    });
+		[HttpPost]
+		public IActionResult PostProductsFromXls()
+		{
+			try
+			{
+				var products = parser.GetProducts(HttpContext).GroupBy(p => p.ProductSku)
+					.Select(g => new Product(g.Key)
+					{
+						Name = g.First().Name,
+						DeprecatedSkus = g.SelectMany(p => p.DeprecatedSkus).Distinct().ToList(),
+						ProductLines = g.SelectMany(p => p.ProductLines).Distinct().ToList(),
+						IsOnWarehouse = g.Any(p => p.IsOnWarehouse == true),
+						ProductMeasure = g.First().ProductMeasure,
+						DeliveryMakeUp = g.First().DeliveryMakeUp,
+						Price = g.First().Price
+					});
 
-                foreach (var p in products)
-                {
-                    dbContext.Add<Product>(p);
-                }
+				foreach (var p in products)
+				{
+					dbContext.Add<Product>(p);
+				}
 
-                dbContext.SaveChanges();
-                return Ok();
-            }
-            catch (Exception ex)
-            {
-                return BadRequest(ex.Message);
-            }
-        }
+				dbContext.SaveChanges();
+				return Ok();
+			}
+			catch (Exception ex)
+			{
+				return BadRequest(ex.Message);
+			}
+		}
 
-        [HttpDelete]
-        public IActionResult DeleteAllProducts()
-        {
-            List<Product> deleted = new();
-            if (dbContext.Products.Count() > 0)
-            {
-                foreach (Product p in dbContext.Products)
-                {
-                    deleted.Add(p);
-                    dbContext.Remove(p);
-                }
-                dbContext.SaveChanges();
-                return Ok(deleted);
-            }
-            else return Ok("Empty db");
-        }
-    }
+		[HttpDelete]
+		public IActionResult DeleteAllProducts()
+		{
+			List<Product> deleted = new();
+			if (dbContext.Products.Count() > 0)
+			{
+				foreach (Product p in dbContext.Products)
+				{
+					deleted.Add(p);
+					dbContext.Remove(p);
+				}
+				dbContext.SaveChanges();
+				return Ok(deleted);
+			}
+			else return Ok("Empty db");
+		}
+	}
 }

RhSolutions.Api/Middleware/QueryModifier.cs

@@ -1,30 +1,35 @@
-using RhSolutions.Api.Services;
+using Microsoft.AspNetCore.Http.Extensions;
+using RhSolutions.Api.Services;
 using RhSolutions.QueryModifiers;
 
 namespace RhSolutions.Api.Middleware;
 
 public class QueryModifier
 {
-    private RequestDelegate _next;
+	private RequestDelegate _next;
 
-    public QueryModifier(RequestDelegate nextDelegate)
-    {
-        _next = nextDelegate;
-    }
+	public QueryModifier(RequestDelegate nextDelegate)
+	{
+		_next = nextDelegate;
+	}
 
-    public async Task Invoke(HttpContext context, IProductTypePredicter typePredicter, ProductQueryModifierFactory productQueryModifierFactory)
-    {
-        if (context.Request.Method == HttpMethods.Get
-                && context.Request.Path == "/api/search")
-        {
-            string query = context.Request.Query["query"].ToString();
-            var productType = typePredicter.GetPredictedProductType(query);
-            var modifier = productQueryModifierFactory.GetModifier(productType!);
-            if (modifier.TryQueryModify(context.Request.Query, out var newQuery))
-            {
-                context.Request.QueryString = newQuery;
-            }
-        }
-        await _next(context);
-    }
+	public async Task Invoke(HttpContext context, IProductTypePredicter typePredicter, ProductQueryModifierFactory productQueryModifierFactory)
+	{
+		if (context.Request.Method == HttpMethods.Get
+				&& context.Request.Path == "/api/search")
+		{
+			string query = context.Request.Query["query"].ToString();
+			var productType = typePredicter.GetPredictedProductType(query);
+			var modifier = productQueryModifierFactory.GetModifier(productType!);
+			if (modifier.TryQueryModify(query, out var modified))
+			{
+				QueryBuilder qb = new()
+				{
+					{"query", modified}
+				};
+				context.Request.QueryString = qb.ToQueryString();
+			}
+		}
+		await _next(context);
+	}
 }

RhSolutions.Api/Program.cs

@@ -4,7 +4,7 @@ using RhSolutions.Api.Services;
 using RhSolutions.Api.Middleware;
 using RhSolutions.QueryModifiers;
 
-var builder = WebApplication.CreateBuilder(args);
+var builder = WebApplication.CreateBuilder();
 
 string dbHost = builder.Configuration["DB_HOST"],
 	dbPort = builder.Configuration["DB_PORT"],
@@ -23,17 +23,18 @@ builder.Services.AddDbContext<RhSolutionsContext>(opts =>
 		opts.EnableSensitiveDataLogging(true);
 	}
 });
+
 builder.Services.AddScoped<IPricelistParser, ClosedXMLParser>()
 	.AddScoped<IProductTypePredicter, ProductTypePredicter>()
-	.AddSingleton<ProductQueryModifierFactory>();
+	.AddSingleton<ProductQueryModifierFactory>()
+	.AddGrpc();
+
 builder.Services.AddControllers();
 
 var app = builder.Build();
 
 app.MapControllers();
+app.MapGrpcService<SearchService>();
 app.UseMiddleware<QueryModifier>();
 
-var context = app.Services.CreateScope().ServiceProvider
-	.GetRequiredService<RhSolutionsContext>();
-	
 app.Run();

RhSolutions.Api/Properties/launchSettings.json

@@ -4,7 +4,7 @@
     "anonymousAuthentication": true,
     "launchBrowser": false,
     "iisExpress": {
-      "applicationUrl": "http://localhost:5000",
+      "applicationUrl": "http://localhost:5000;http://localhost:43000",
       "sslPort": 0
     }
   },
@@ -13,7 +13,7 @@
       "commandName": "Project",
       "dotnetRunMessages": true,
       "launchBrowser": false,
-      "applicationUrl": "http://localhost:5000",
+      "applicationUrl": "http://localhost:5000;http://localhost:43000",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }

RhSolutions.Api/Protos/product.proto

@@ -0,0 +1,15 @@
+syntax = "proto3";
+
+service ProductSearch {
+  rpc GetProduct (ProductRequest) returns (ProductReply);
+}
+
+message ProductRequest {
+  string query = 1;
+}
+
+message ProductReply {
+  string id = 1;
+  string name = 2;
+  double price = 3;
+}

RhSolutions.Api/RhSolutions.Api.csproj

@@ -9,6 +9,11 @@
 
   <ItemGroup>
     <PackageReference Include="ClosedXML" Version="0.100.0" />
+    <PackageReference Include="Grpc.AspnetCore" Version="2.58.0" />
+    <PackageReference Include="Grpc.Tools" Version="2.59.0">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.5">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
@@ -29,4 +34,9 @@
     </None>
   </ItemGroup>
 
+  <ItemGroup>
+    <Protobuf Include="Protos\product.proto" GrpcServices="Server" />
+  </ItemGroup>
+
+
 </Project>

RhSolutions.Api/Services/ProductTypePredicter.cs

@@ -5,40 +5,40 @@ namespace RhSolutions.Api.Services;
 
 public class ProductTypePredicter : IProductTypePredicter
 {
-    private readonly string _modelPath = @"./MLModels/model.zip";
-    private MLContext _mlContext;
-    private ITransformer _loadedModel;
-    private PredictionEngine<Product, TypePrediction> _predEngine;
+	private readonly string _modelPath = @"./MLModels/model.zip";
+	private MLContext _mlContext;
+	private ITransformer _loadedModel;
+	private PredictionEngine<Product, TypePrediction> _predEngine;
 
-    public ProductTypePredicter()
-    {
-        _mlContext = new MLContext(seed: 0);
-        _loadedModel = _mlContext.Model.Load(_modelPath, out var _);
-        _predEngine = _mlContext.Model.CreatePredictionEngine<Product, TypePrediction>(_loadedModel);
-    }
+	public ProductTypePredicter()
+	{
+		_mlContext = new MLContext(seed: 0);
+		_loadedModel = _mlContext.Model.Load(_modelPath, out var _);
+		_predEngine = _mlContext.Model.CreatePredictionEngine<Product, TypePrediction>(_loadedModel);
+	}
 
-    public string? GetPredictedProductType(string productName)
-    {
-        Product p = new()
-        {
-            Name = productName
-        };
-        var prediction = _predEngine.Predict(p);
-        return prediction.Type;
-    }
+	public string? GetPredictedProductType(string productName)
+	{
+		Product p = new()
+		{
+			Name = productName
+		};
+		var prediction = _predEngine.Predict(p);
+		return prediction.Type;
+	}
 
-    public class Product
-    {
-        [LoadColumn(0)]
-        public string? Name { get; set; }
-        [LoadColumn(1)]
-        public string? Type { get; set; }
-    }
+	public class Product
+	{
+		[LoadColumn(0)]
+		public string? Name { get; set; }
+		[LoadColumn(1)]
+		public string? Type { get; set; }
+	}
 
-    public class TypePrediction
-    {
-        [ColumnName("PredictedLabel")]
-        public string? Type { get; set; }
-    }
+	public class TypePrediction
+	{
+		[ColumnName("PredictedLabel")]
+		public string? Type { get; set; }
+	}
 }
 

RhSolutions.Api/Services/SearchService.cs

@@ -0,0 +1,48 @@
+using Grpc.Core;
+using RhSolutions.Models;
+using Microsoft.EntityFrameworkCore;
+using RhSolutions.QueryModifiers;
+
+namespace RhSolutions.Api.Services;
+
+public class SearchService : ProductSearch.ProductSearchBase
+{
+	private RhSolutionsContext _dbContext;
+	private IProductTypePredicter _typePredicter;
+	private ProductQueryModifierFactory _productQueryModifierFactory;
+
+	public SearchService(RhSolutionsContext dbContext, IProductTypePredicter typePredicter, ProductQueryModifierFactory productQueryModifierFactory)
+	{
+		_dbContext = dbContext;
+		_typePredicter = typePredicter;
+		_productQueryModifierFactory = productQueryModifierFactory;
+	}
+	public override async Task<ProductReply?> GetProduct(ProductRequest request, ServerCallContext context)
+	{
+		var productType = _typePredicter.GetPredictedProductType(request.Query);
+		var modifier = _productQueryModifierFactory.GetModifier(productType!);
+		string query = request.Query;
+		if (modifier.TryQueryModify(query, out var modified))
+		{
+			query = modified;
+		}
+		var product = await _dbContext.Products
+				.Where(p => EF.Functions.ToTsVector(
+					"russian", string.Join(' ', new[] { p.Name, string.Join(' ', p.ProductLines) }))
+					.Matches(EF.Functions.WebSearchToTsQuery("russian", query)))
+				.OrderByDescending(p => p.IsOnWarehouse)
+				.FirstOrDefaultAsync();
+
+		if (product != null)
+		{
+			return new ProductReply()
+			{
+				Id = product.Id,
+				Name = product.Name,
+				Price = (double)product.Price
+			};
+		}
+		return null;
+	}
+}
+

RhSolutions.Api/appsettings.json

@@ -6,5 +6,17 @@
       "Microsoft.EntityFrameworkCore": "Information"
     }
   },
-     "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "Kestrel": {
+    "Endpoints": {
+      "Http": {
+        "Url": "http://0.0.0.0:5000",
+        "Protocols": "Http1AndHttp2"
+      },
+      "gRPC": {
+        "Url": "http://0.0.0.0:43000",
+        "Protocols": "Http2"
+      }
+    }
   }
+}

RhSolutions.QueryModifiers/BypassQueryModifier.cs

@@ -1,12 +1,10 @@
-using Microsoft.AspNetCore.Http;
-
-namespace RhSolutions.QueryModifiers;
+namespace RhSolutions.QueryModifiers;
 
 public sealed class BypassQueryModifier : IProductQueryModifier
 {
-    public bool TryQueryModify(IQueryCollection collection, out QueryString queryString)
-    {
-        queryString = QueryString.Empty;
-        return false;
-    }
+	public bool TryQueryModify(string query, out string queryModified)
+	{
+		queryModified = string.Empty;
+		return false;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Adapter.cs

@@ -4,18 +4,20 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public abstract class Adapter : DrinkingWaterHeatingFitting
 {
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{		
-		Match diameter = _diameter.Match(query);
+		output = string.Empty;
+		Match diameter = _diameter.Match(input);
 		if (!diameter.Success)
 		{
-			return null;
+			return false;
 		}
-		Match thread = _thread.Match(query);
+		Match thread = _thread.Match(input);
 		if (!thread.Success)
 		{
-			return null;
+			return false;
 		}
-		return $"{_title} {diameter.Groups["Diameter"]} {thread.Groups["Thread"]}";
+		output = $"{_title} {diameter.Groups["Diameter"]} {thread.Groups["Thread"]}";
+		return true;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerHeating.cs

@@ -2,21 +2,23 @@
 
 public class BendFormerHeating : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Фиксатор поворота";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        string diameter = diameterMatch.Groups["Diameter"].Value;
-        if (diameter == "16")
-        {
-            diameter += "/17";
-        }
-        var angleMatch = _angle.Match(query);
-        string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
-        return $"{_title} {diameter}/{angle}°";
-    }
+	protected override string _title => "Фиксатор поворота";
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		string diameter = diameterMatch.Groups["Diameter"].Value;
+		if (diameter == "16")
+		{
+			diameter += "/17";
+		}
+		var angleMatch = _angle.Match(input);
+		string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
+		output = $"{_title} {diameter}/{angle}°";
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/BendFormerSanitary.cs

@@ -2,17 +2,20 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class BendFormerSanitary : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Фиксатор поворота с кольцами";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        string diameter = diameterMatch.Groups["Diameter"].Value;
-        var angleMatch = _angle.Match(query);
-        string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
-        return $"{_title} {angle}° {diameter}";
-    }
+	protected override string _title => "Фиксатор поворота с кольцами";
+
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		string diameter = diameterMatch.Groups["Diameter"].Value;
+		var angleMatch = _angle.Match(input);
+		string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
+		output = $"{_title} {angle}° {diameter}";
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ConnectionBend.cs

@@ -9,16 +9,18 @@ public class ConnectionBend : DrinkingWaterHeatingFitting
 		new(@"([\b\D]|^)?(?<Diameter>16|20|25)(\D+|.*15.*)(?<Length>\b\d{3,4})([\b\D]|$)");
 	protected override string _title => "Трубка Г-образная";
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var match = _pattern.Match(query);
+		output = string.Empty;
+		var match = _pattern.Match(input);
 		if (!match.Success)
 		{
-			return null;
+			return false;
 		}
 		string diameter =  match.Groups["Diameter"].Value;
 		int length = int.Parse(match.Groups["Length"].Value);
 		int nearest = lengths.OrderBy(x => Math.Abs(x - length)).First();
-		return $"{_title} {diameter}/{nearest}";
+		output = $"{_title} {diameter}/{nearest}";
+		return true;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Coupling.cs

@@ -3,24 +3,27 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 public class Coupling : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Муфта соединительная";
-	protected override string? BuildRhSolutionsName(string query)
+
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diametersMatches = _diameter.Matches(query);			
+		output = string.Empty;
+		var diametersMatches = _diameter.Matches(input);			
 		if (diametersMatches.Count == 0)		
 		{
-			return null;
+			return false;
 		}
 		var diameters = diametersMatches.Select(x => x.Groups["Diameter"].Value)
 			.Take(2)
 			.OrderByDescending(x => int.Parse(x))
 			.ToArray();			
 		if (diameters.Length == 1 || diameters[0] == diameters[1])
-			{
-				return $"{_title} равнопроходная {diameters[0]}";
-			}
-			else
-			{
-				return $"{_title} переходная {diameters[0]}-{diameters[1]}";
-			}
+		{
+			output = $"{_title} равнопроходная {diameters[0]}";
+		}
+		else
+		{
+			output = $"{_title} переходная {diameters[0]}-{diameters[1]}";
+		}
+		return true;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/DrinkingWaterHeatingFitting.cs

@@ -1,6 +1,4 @@
 using System.Text.RegularExpressions;
-using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Http.Extensions;
 
 namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
@@ -15,34 +13,18 @@ public abstract class DrinkingWaterHeatingFitting : IProductQueryModifier
 
 	protected virtual string _title { get; } = string.Empty;
 
-	public bool TryQueryModify(IQueryCollection collection, out QueryString queryString)
+	public virtual bool TryQueryModify(string input, out string output)
 	{
-		queryString = QueryString.Empty;
-		string query = collection["query"].ToString();
-		if (string.IsNullOrEmpty(query))
-		{
-			return false;
-		}
-		string? result = BuildRhSolutionsName(query);
-		if (result != null)
-		{
-			QueryBuilder qb = new()
-			{
-				{ "query", result }
-			};
-			queryString = qb.ToQueryString();
-			return true;
-		}
-		return false;
-	}
-
-	protected virtual string? BuildRhSolutionsName(string query)
-	{
-		var match = _diameter.Match(query);
+		var match = _diameter.Match(input);
 		if (match.Success)
 		{
-			return $"{_title} {match.Groups["Diameter"]}";
+			output = $"{_title} {match.Groups["Diameter"]}";
+			return true;
+		}
+		else
+		{
+			output = string.Empty;
+			return false;
 		}
-		return null;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ElbowModifier.cs

@@ -2,17 +2,20 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class ElbowModifier : DrinkingWaterHeatingFitting
 {
-    protected override string _title { get; } = "Угольник RAUTITAN -PLATINUM";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        string diameter = diameterMatch.Groups["Diameter"].Value;
-        var angleMatch = _angle.Match(query);
-        string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
-        return $"{_title} {angle} {diameter}";
-    }
+	protected override string _title { get; } = "Угольник RAUTITAN -PLATINUM";
+	
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		string diameter = diameterMatch.Groups["Diameter"].Value;
+		var angleMatch = _angle.Match(input);
+		string angle = angleMatch.Success ? angleMatch.Groups["Angle"].Value : "90";
+		output = $"{_title} {angle} {diameter}";
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Eurocone.cs

@@ -4,18 +4,19 @@ public abstract class Eurocone : DrinkingWaterHeatingFitting
 {
 	protected virtual Dictionary<string, string> _titles { get; } = new();
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (diameterMatch.Success)
 		{
 			string diameter = diameterMatch.Groups["Diameter"].Value;
 			if (_titles.TryGetValue(diameter, out string? title))
 			{
-				return title;
+				output = title;
+				return true;
 			}
-			else return null;
 		}
-		return null;
+		return false;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeAdapter.cs

@@ -3,14 +3,17 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 public class EuroconeAdapter : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Переходник на евроконус";
-	protected override string? BuildRhSolutionsName(string query)
+
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (diameterMatch.Success)
 		{
 			string diameter = diameterMatch.Groups["Diameter"].Value;
-			return $"{_title} {diameter}-G 3/4";
+			output = $"{_title} {diameter}-G 3/4";
+			return true;
 		}
-		return null;
+		return false;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/EuroconeConnectionBend.cs

@@ -2,8 +2,9 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class EuroconeConnectionBend : DrinkingWaterHeatingFitting
 {
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        return "Резьбозажимное соединение для металлической трубки G 3/4 -15";
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = "Резьбозажимное соединение для металлической трубки G 3/4 -15";
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/Nippel.cs

@@ -2,8 +2,9 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class Nippel : DrinkingWaterHeatingFitting
 {
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        return "К-т двух резьбозажим. нипелей с нар.резьбой 1/2х3/4";
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = "К-т двух резьбозажим. нипелей с нар.резьбой 1/2х3/4";
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/SupportingClip.cs

@@ -4,9 +4,10 @@ public class SupportingClip : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Фиксирующий желоб для ПЭ-трубы";
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;		
+		var diameterMatch = _diameter.Match(input);
 		if (diameterMatch.Success)
 		{
 			string diameter = diameterMatch.Groups["Diameter"].Value;
@@ -14,8 +15,9 @@ public class SupportingClip : DrinkingWaterHeatingFitting
 			{
 				diameter += "/17";
 			}
-			return $"{_title} {diameter}";
+			output = $"{_title} {diameter}";
+			return true;
 		}
-		return null;
+		return false;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/TPiece.cs

@@ -2,24 +2,26 @@
 
 public class TPiece : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Тройник RAUTITAN -PLATINUM";
+	protected override string _title => "Тройник RAUTITAN -PLATINUM";
 
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        var diameters = _diameter.Matches(query)
-            .Select(match => match.Groups["Diameter"].Value)
-            .ToArray();
-        if (diameters.Length == 1)
-        {
-            return $"{_title} {diameters[0]}-{diameters[0]}-{diameters[0]}";
-        }
-        else if (diameters.Length >= 3)
-        {
-            return $"{_title} {diameters[0]}-{diameters[1]}-{diameters[2]}";
-        }
-        else
-        {
-            return null;
-        }
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameters = _diameter.Matches(input)
+			.Select(match => match.Groups["Diameter"].Value)
+			.ToArray();
+		if (diameters.Length == 1)
+		{
+			output = $"{_title} {diameters[0]}-{diameters[0]}-{diameters[0]}";
+		}
+		else if (diameters.Length >= 3)
+		{
+			output = $"{_title} {diameters[0]}-{diameters[1]}-{diameters[2]}";
+		}
+		else
+		{
+			return false;
+		}
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowDoubleWallInternal.cs

@@ -7,23 +7,25 @@ public class ThreadElbowDoubleWallInternal : DrinkingWaterHeatingFitting
 	protected override string _title => "Проточный настенный угольник";
 	private Regex _type = new(@"([\b\Wу])(?<Type>длин)([\b\w\.\s])");
 
-	protected override string? BuildRhSolutionsName(string query)
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatches = _diameter.Matches(query);
+		output = string.Empty;
+		var diameterMatches = _diameter.Matches(input);
 		if (diameterMatches.Count == 0)
 		{
-			return null;
+			return false;
 		}
-		var threadMatch = _thread.Match(query);
+		var threadMatch = _thread.Match(input);
 		if (!threadMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var typeMatch = _type.Match(query);
+		var typeMatch = _type.Match(input);
 		string[] diameters = diameterMatches.Select(x => x.Groups["Diameter"].Value).ToArray();
 		string thread = threadMatch.Groups["Thread"].Value;
 		string type = typeMatch.Success ? "длинный" : "короткий";
 		
-		return $"{_title} {diameters[0]}/{(diameters.Length > 1 ? diameters[1] : diameters[0])}-Rp {thread} {type}";
+		output = $"{_title} {diameters[0]}/{(diameters.Length > 1 ? diameters[1] : diameters[0])}-Rp {thread} {type}";
+		return true;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallExternal.cs

@@ -3,20 +3,23 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 public class ThreadElbowWallExternal : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Угольник настенный с наружной резьбой";
-	protected override string? BuildRhSolutionsName(string query)
+
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (!diameterMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var threadMatch = _thread.Match(query);
+		var threadMatch = _thread.Match(input);
 		if (!threadMatch.Success)
 		{
-			return null;
+			return false;
 		}
 		string diameter = diameterMatch.Groups["Diameter"].Value;
 		string thread = threadMatch.Groups["Thread"].Value;
-		return $"{_title} {diameter}-R {thread}";
+		output = $"{_title} {diameter}-R {thread}";
+		return true;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadElbowWallInternal.cs

@@ -6,21 +6,24 @@ public class ThreadElbowWallInternal : DrinkingWaterHeatingFitting
 {
 	protected override string _title => "Угольник настенный внутр. резьба";
 	private Regex _type = new(@"([\b\Wу])(?<Type>длин)([\b\w\.\s])");
-	protected override string? BuildRhSolutionsName(string query)
+
+	public override bool TryQueryModify(string input, out string output)
 	{
-		var diameterMatch = _diameter.Match(query);
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
 		if (!diameterMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var threadMatch = _thread.Match(query);
+		var threadMatch = _thread.Match(input);
 		if (!threadMatch.Success)
 		{
-			return null;
+			return false;
 		}
-		var typeMatch = _type.Match(query);
+		var typeMatch = _type.Match(input);
 		string diameter = diameterMatch.Groups["Diameter"].Value;
 		string thread = threadMatch.Groups["Thread"].Value;
-		return $"{_title} {(typeMatch.Success ? "длинный " : string.Empty)}{diameter}-Rp {thread}";
+		output = $"{_title} {(typeMatch.Success ? "длинный " : string.Empty)}{diameter}-Rp {thread}";
+		return true;
 	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceExternal.cs

@@ -4,23 +4,26 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class ThreadTPieceExternal : DrinkingWaterHeatingFitting
 {
-    protected override string _title => "Тройник RAUTITAN с наружной резьбой";
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        MatchCollection diametersMatches = _diameter.Matches(query);
-        if (diametersMatches.Count == 0)
-        {
-            return null;
-        }
-        string thread = _thread.Match(query).Groups["Thread"].Value;
-        int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
-        if (diameters.Length == 1)
-        {
-            return $"{_title} {diameters[0]}-{diameters[0]}-R {thread}";
-        }
-        else
-        {
-            return $"{_title} {diameters[0]}-{diameters[1]}-R {thread}";
-        }
-    }
+	protected override string _title => "Тройник RAUTITAN с наружной резьбой";
+
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		MatchCollection diametersMatches = _diameter.Matches(input);
+		if (diametersMatches.Count == 0)
+		{
+			return false;
+		}
+		string thread = _thread.Match(input).Groups["Thread"].Value;
+		int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
+		if (diameters.Length == 1)
+		{
+			output = $"{_title} {diameters[0]}-{diameters[0]}-R {thread}";
+		}
+		else
+		{
+			output = $"{_title} {diameters[0]}-{diameters[1]}-R {thread}";
+		}
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingFittings/ThreadTPieceInternal.cs

@@ -4,36 +4,38 @@ namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingFittings;
 
 public class ThreadTPieceInternal : DrinkingWaterHeatingFitting
 {
-    protected override string? BuildRhSolutionsName(string query)
-    {
-        MatchCollection diametersMatches = _diameter.Matches(query);
-        if (diametersMatches.Count == 0)
-        {
-            return null;
-        }
-        string thread = _thread.Match(query).Groups["Thread"].Value;
-        int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
-        if (diameters.Length == 1)
-        {
-            if (diameters[0] < 25)
-            {
-                return $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[0]}";
-            }
-            else
-            {
-                return $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[0]}";
-            }
-        }
-        else
-        {
-            if (diameters[0] < 25)
-            {
-                return $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[1]}";
-            }
-            else
-            {
-                return $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[1]}";
-            }
-        }
-    }
+	public override bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		MatchCollection diametersMatches = _diameter.Matches(input);
+		if (diametersMatches.Count == 0)
+		{
+			return false;
+		}
+		string thread = _thread.Match(input).Groups["Thread"].Value;
+		int[] diameters = diametersMatches.Select(match => int.Parse(match.Groups["Diameter"].Value)).ToArray();
+		if (diameters.Length == 1)
+		{
+			if (diameters[0] < 25)
+			{
+				output = $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[0]}";
+			}
+			else
+			{
+				output = $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[0]}";
+			}
+		}
+		else
+		{
+			if (diameters[0] < 25)
+			{
+				output = $"Тройник RAUTITAN настенный с внутренней резьбой {diameters[0]}-Rp{thread}-{diameters[1]}";
+			}
+			else
+			{
+				output = $"Тройник RAUTITAN с внутр. резьбой на боков. проходе {diameters[0]}-Rp {thread}-{diameters[1]}";
+			}
+		}
+		return true;
+	}
 }

RhSolutions.QueryModifiers/DrinkingWaterHeatingPipes/DrinkingWaterHeatingPipe.cs

@@ -1,77 +1,56 @@
 using System.Text.RegularExpressions;
-using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Http.Extensions;
 
 namespace RhSolutions.QueryModifiers.DrinkingWaterHeatingPipes;
 
 public class DrinkingWaterHeatingPipe : IProductQueryModifier
 {
-    protected static readonly Regex _diameter =
-        new(@"([\b\D]|^)?(?<Diameter>16|20|25|32|40|50|63)([\b\D]|$)");
-    protected static readonly Regex _type = 
-        new(@"([\b\W])(?<Type>бухт|отр|штанг)([\b\w\.\s])");
-    protected virtual string _title { get; } = string.Empty;
+	protected static readonly Regex _diameter =
+		new(@"([\b\D]|^)?(?<Diameter>16|20|25|32|40|50|63)([\b\D]|$)");
+	protected static readonly Regex _type = 
+		new(@"([\b\W])(?<Type>бухт|отр|штанг)([\b\w\.\s])");
+	protected virtual string _title { get; } = string.Empty;
 
-    protected virtual Dictionary<int, string> _diameterNames { get; } = new()
-    {
-        [16] = "16x2,2",
-        [20] = "20x2,8",
-        [25] = "25x3,5",
-        [32] = "32x4,4",
-        [40] = "40x5,5",
-        [50] = "50x6,9",
-        [63] = "63x8,6"
-    };
+	protected virtual Dictionary<int, string> _diameterNames { get; } = new()
+	{
+		[16] = "16x2,2",
+		[20] = "20x2,8",
+		[25] = "25x3,5",
+		[32] = "32x4,4",
+		[40] = "40x5,5",
+		[50] = "50x6,9",
+		[63] = "63x8,6"
+	};
 
-    protected virtual Dictionary<string, string> _makeUp { get; } = new()
-    {
-        ["бухт"] = "бухта",
-        ["штанг"] = "прям.отрезки",
-        ["отр"] = "прям.отрезки"
-    };
+	protected virtual Dictionary<string, string> _makeUp { get; } = new()
+	{
+		["бухт"] = "бухта",
+		["штанг"] = "прям.отрезки",
+		["отр"] = "прям.отрезки"
+	};
 
-    public bool TryQueryModify(IQueryCollection collection, out QueryString queryString)
-    {
-        queryString = QueryString.Empty;
-        string query = collection["query"].ToString();
-        if (string.IsNullOrEmpty(query))
-        {
-            return false;
-        }
-        string? result = BuildRhSolutionsName(query);
-        if (result != null)
-        {
-            QueryBuilder qb = new()
-            {
-                { "query", result }
-            };
-            queryString = qb.ToQueryString();
-            return true;
-        }
-        return false;
-    }
-
-    protected virtual string? BuildRhSolutionsName(string query)
-    {
-        var diameterMatch = _diameter.Match(query);
-        if (!diameterMatch.Success)
-        {
-            return null;
-        }
-        var diameter = int.Parse(diameterMatch.Groups["Diameter"].Value);
-        var typeMatch = _type.Match(query);
-        if (typeMatch.Success)
-        {
-            var type = typeMatch.Groups["Type"].Value;
-            return $"Труба {_title} {_diameterNames[diameter]} {_makeUp[type]}";
-        }
-        else if (diameter < 32)
-        {
-            return $"Труба {_title} {_diameterNames[diameter]} {_makeUp["бухт"]}";
-        }
-        else
-        {
-            return $"Труба {_title} {_diameterNames[diameter]} {_makeUp["отр"]}";
-        }
-    }
+	public bool TryQueryModify(string input, out string output)
+	{
+		output = string.Empty;
+		var diameterMatch = _diameter.Match(input);
+		if (!diameterMatch.Success)
+		{
+			return false;
+		}
+		var diameter = int.Parse(diameterMatch.Groups["Diameter"].Value);
+		var typeMatch = _type.Match(input);
+		if (typeMatch.Success)
+		{
+			var type = typeMatch.Groups["Type"].Value;
+			output = $"Труба {_title} {_diameterNames[diameter]} {_makeUp[type]}";
+		}
+		else if (diameter < 32)
+		{
+			output = $"Труба {_title} {_diameterNames[diameter]} {_makeUp["бухт"]}";
+		}
+		else
+		{
+			output = $"Труба {_title} {_diameterNames[diameter]} {_makeUp["отр"]}";
+		}
+		return true;
+	}
 }

RhSolutions.QueryModifiers/IProductQueryModifier.cs

@@ -1,8 +1,6 @@
-using Microsoft.AspNetCore.Http;
-
-namespace RhSolutions.QueryModifiers;
+namespace RhSolutions.QueryModifiers;
 
 public interface IProductQueryModifier
 {
-    public bool TryQueryModify(IQueryCollection collection, out QueryString queryString);
+    public bool TryQueryModify(string query, out string queryModified);
 }