Use grouped operation name in application insights telemetry

src/Tracing/ApplicationInsights.AspNetCore/OperationNameTelemetryInitializer.cs

@@ -0,0 +1,32 @@
+using DotVVM.Framework.Hosting;
+using Microsoft.ApplicationInsights.DataContracts;
+using Microsoft.ApplicationInsights.Extensibility;
+using Microsoft.ApplicationInsights.Channel;
+using Microsoft.AspNetCore.Http;
+
+namespace DotVVM.Tracing.ApplicationInsights.AspNetCore;
+
+public class OperationNameTelemetryInitializer : ITelemetryInitializer
+{
+    private readonly IHttpContextAccessor _accessor;
+
+    public OperationNameTelemetryInitializer(IHttpContextAccessor accessor)
+    {
+        _accessor = accessor;
+    }
+
+    public void Initialize(ITelemetry telemetry)
+    {
+        var context = _accessor.HttpContext;
+        var url = context?.GetDotvvmContext()?.Route?.Url;
+        if (url != null && telemetry is RequestTelemetry)
+        {
+            var method = context.Request.Method;
+            var operationName = $"{method} /{url}";
+
+            var requestTelemetry = telemetry as RequestTelemetry;
+            requestTelemetry.Name = operationName;
+            requestTelemetry.Context.Operation.Name = operationName;
+        }
+    }
+}

src/Tracing/ApplicationInsights.AspNetCore/TracingBuilderExtensions.cs

@@ -30,6 +30,7 @@ public static IDotvvmServiceCollection AddApplicationInsightsTracing(this IDotvv
             services.AddDotvvmApplicationInsights();
 
             services.Services.AddApplicationInsightsTelemetryProcessor<RequestTelemetryFilter>();
+            services.Services.AddSingleton<ITelemetryInitializer, OperationNameTelemetryInitializer>();
 
             services.Services.TryAddSingleton<JavaScriptSnippet>();
             services.Services.AddTransient<IConfigureOptions<DotvvmConfiguration>, ApplicationInsightSetup>();

src/Tracing/ApplicationInsights.Owin/DotVVM.Tracing.ApplicationInsights.Owin.csproj

@@ -11,6 +11,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Options" Version="2.0.0" />
+    <PackageReference Include="Microsoft.Owin.Host.SystemWeb" Version="4.2.2" />
     <PackageReference Include="System.Text.Encodings.Web" Version="4.5.1" />
   </ItemGroup>
   <ItemGroup>

src/Tracing/ApplicationInsights.Owin/OperationNameTelemetryInitializer.cs

@@ -0,0 +1,25 @@
+using System.Web;
+using DotVVM.Framework.Hosting;
+using Microsoft.ApplicationInsights.DataContracts;
+using Microsoft.ApplicationInsights.Extensibility;
+using Microsoft.ApplicationInsights.Channel;
+
+namespace DotVVM.Tracing.ApplicationInsights.Owin;
+
+public class OperationNameTelemetryInitializer : ITelemetryInitializer
+{
+    public void Initialize(ITelemetry telemetry)
+    {
+        var context = HttpContext.Current;
+        var url = context?.GetOwinContext()?.GetDotvvmContext()?.Route?.Url;
+        if (url != null && telemetry is RequestTelemetry)
+        {
+            var method = context.Request.HttpMethod;
+            var operationName = $"{method} /{url}";
+
+            var requestTelemetry = telemetry as RequestTelemetry;
+            requestTelemetry.Name = operationName;
+            requestTelemetry.Context.Operation.Name = operationName;
+        }
+    }
+}

src/Tracing/ApplicationInsights.Owin/TracingBuilderExtensions.cs

@@ -18,6 +18,7 @@ public static class TracingBuilderExtensions
         public static IDotvvmServiceCollection AddApplicationInsightsTracing(this IDotvvmServiceCollection services)
         {
             TelemetryConfiguration.Active.TelemetryProcessorChainBuilder.Use(next => new RequestTelemetryFilter(next)).Build();
+            TelemetryConfiguration.Active.TelemetryInitializers.Add(new OperationNameTelemetryInitializer());
 
             services.Services.TryAddSingleton<TelemetryClient>();
             services.AddDotvvmApplicationInsights();