itsecd · KsSoldatova · Mar 4, 2026 · Mar 7, 2026 · Mar 8, 2026 · Apr 7, 2026
diff --git a/Api.Gateway/Api.Gateway.csproj b/Api.Gateway/Api.Gateway.csproj
@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+	<ItemGroup>
+		<PackageReference Include="Ocelot" Version="24.1.0" />
+	</ItemGroup>
+
+</Project>
diff --git a/Api.Gateway/LoadBalancer/WeightedRandom.cs b/Api.Gateway/LoadBalancer/WeightedRandom.cs
@@ -0,0 +1,34 @@
+using Ocelot.LoadBalancer.Interfaces;
+using Ocelot.Responses;
+using Ocelot.Values;
+
+namespace Api.Gateway.LoadBalancer;
+
+/// <summary>
+/// Балансировка случайным образом с весами
+/// </summary>
+public class WeightedRandom : ILoadBalancer
+{
+    private readonly Func<Task<List<Service>>> _services = null!;
+    private static readonly object _locker = new();
+
+    private readonly int[] _values = null!;
+
+    public string Type => nameof(WeightedRandom);
+    public WeightedRandom(Func<Task<List<Service>>> services)
+    {
+        _services = services;
+        int[] frequencies = [1, 2, 3, 2, 1];
+        _values = [.. Enumerable.Range(1, 5).Zip(frequencies, (val, freq) => Enumerable.Repeat(val, freq)).SelectMany(x => x)];
+    }
+    public async Task<Response<ServiceHostAndPort>> LeaseAsync(HttpContext httpContext)
+    {
+        var services = await _services.Invoke();
+        lock (_locker)
+        {
+            Random.Shared.Shuffle(_values);
+            return new OkResponse<ServiceHostAndPort>(services[_values.First()].HostAndPort);
+        }
+    }
+    public void Release(ServiceHostAndPort hostAndPort) { }
+}
diff --git a/Api.Gateway/Program.cs b/Api.Gateway/Program.cs
@@ -0,0 +1,20 @@
+using Api.Gateway.LoadBalancer;
+using Ocelot.DependencyInjection;
+using Ocelot.Middleware;
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Configuration.AddJsonFile("ocelot.json", optional: false, reloadOnChange: true);
+builder.Services.AddOcelot()
+    .AddCustomLoadBalancer<WeightedRandom>((_, _, dicoveryProvider) => new(dicoveryProvider.GetAsync));
+builder.Services.AddCors(options => options.AddDefaultPolicy(policy =>
+{
+    policy.WithOrigins("http://localhost:5127")
+          .WithMethods("GET")
+          .AllowAnyHeader();
+}));
+
+var app = builder.Build();
+app.UseCors();
+await app.UseOcelot();
+app.Run();
diff --git a/Api.Gateway/Properties/launchSettings.json b/Api.Gateway/Properties/launchSettings.json
@@ -0,0 +1,38 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:25431",
+      "sslPort": 44359
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5190",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:7034;http://localhost:5190",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}
diff --git a/Api.Gateway/appsettings.Development.json b/Api.Gateway/appsettings.Development.json
@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}
diff --git a/Api.Gateway/appsettings.json b/Api.Gateway/appsettings.json
@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}
diff --git a/Api.Gateway/ocelot.json b/Api.Gateway/ocelot.json
@@ -0,0 +1,35 @@
+{
+  "Routes": [
+    {
+      "UpstreamPathTemplate": "/program-project",
+      "UpstreamHttpMethod": [ "GET" ],
+      "DownstreamHostAndPorts": [
+        {
+          "Host": "localhost",
+          "Port": 4440
+        },
+        {
+          "Host": "localhost",
+          "Port": 4441
+        },
+        {
+          "Host": "localhost",
+          "Port": 4442
+        },
+        {
+          "Host": "localhost",
+          "Port": 4443
+        },
+        {
+          "Host": "localhost",
+          "Port": 4444
+        }
+      ],
+      "DownstreamPathTemplate": "/program-project",
+      "DownstreamScheme": "https",
+      "LoadBalancerOptions": {
+        "Type": "WeightedRandom"
+      }
+    }
+  ]
+}
diff --git a/AspireApp1/AspireApp1.AppHost/AspireApp.AppHost.csproj b/AspireApp1/AspireApp1.AppHost/AspireApp.AppHost.csproj
@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <Sdk Name="Aspire.AppHost.Sdk" Version="9.5.2" />
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsAspireHost>true</IsAspireHost>
+    <UserSecretsId>af866732-ee76-4a9f-b28a-2e8d52f5e153</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Aspire.Hosting.AppHost" Version="9.5.2" />
+	<PackageReference Include="Aspire.Hosting.Redis" Version="9.5.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\Api.Gateway\Api.Gateway.csproj" />
+    <ProjectReference Include="..\..\Client.Wasm\Client.Wasm.csproj" />
+    <ProjectReference Include="..\..\ServiceApi\ServiceApi.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/AspireApp1/AspireApp1.AppHost/Program.cs b/AspireApp1/AspireApp1.AppHost/Program.cs
@@ -0,0 +1,20 @@
+var builder = DistributedApplication.CreateBuilder(args);
+
+var cache = builder.AddRedis("project-cache")
+    .WithRedisInsight(containerName: "project-insight");
+
+var gateway = builder.AddProject<Projects.Api_Gateway>("api-gateway");
+
+for (var i = 0; i < 5;  i++)
+{
+    var service = builder.AddProject<Projects.ServiceApi>($"programproject-api-{i + 1}", launchProfileName: null)
+        .WithHttpsEndpoint(4440 + i)
+        .WithReference(cache, "RedisCache")
+        .WaitFor(cache);
+    gateway.WaitFor(service);   
+}
+
+builder.AddProject<Projects.Client_Wasm>("programproject-wasm")
+    .WaitFor(gateway);
+
+builder.Build().Run();
diff --git a/AspireApp1/AspireApp1.AppHost/Properties/launchSettings.json b/AspireApp1/AspireApp1.AppHost/Properties/launchSettings.json
@@ -0,0 +1,29 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:17188;http://localhost:15202",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "DOTNET_ENVIRONMENT": "Development",
+        "DOTNET_DASHBOARD_OTLP_ENDPOINT_URL": "https://localhost:21110",
+        "DOTNET_RESOURCE_SERVICE_ENDPOINT_URL": "https://localhost:22049"
+      }
+    },
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:15202",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "DOTNET_ENVIRONMENT": "Development",
+        "DOTNET_DASHBOARD_OTLP_ENDPOINT_URL": "http://localhost:19166",
+        "DOTNET_RESOURCE_SERVICE_ENDPOINT_URL": "http://localhost:20080"
+      }
+    }
+  }
+}
diff --git a/AspireApp1/AspireApp1.AppHost/appsettings.Development.json b/AspireApp1/AspireApp1.AppHost/appsettings.Development.json
@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}
diff --git a/AspireApp1/AspireApp1.AppHost/appsettings.json b/AspireApp1/AspireApp1.AppHost/appsettings.json
@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning",
+      "Aspire.Hosting.Dcp": "Warning"
+    }
+  }
+}
diff --git a/AspireApp1/AspireApp1.ServiceDefaults/AspireApp.ServiceDefaults.csproj b/AspireApp1/AspireApp1.ServiceDefaults/AspireApp.ServiceDefaults.csproj
@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsAspireSharedProject>true</IsAspireSharedProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <FrameworkReference Include="Microsoft.AspNetCore.App" />
+
+    <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="9.0.0" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.9.0" />
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.9.0" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.9.0" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.9.0" />
+    <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.9.0" />
+  </ItemGroup>
+
+</Project>