From 9359d8ac74fd9080450d859343747b75e4aef500 Mon Sep 17 00:00:00 2001
From: David Acker <davidacker3@gmail.com>
Date: Sat, 17 Jun 2023 12:14:24 -0400
Subject: [PATCH] Add sample for IHttpSysRequestTimingFeature

---
 .../IHttpSysRequestTimingFeature.csproj       |  10 ++
 .../IHttpSysRequestTimingFeature/Program.cs   | 110 ++++++++++++++++++
 .../request-features/samples/removeMe.txt     |   1 -
 3 files changed, 120 insertions(+), 1 deletion(-)
 create mode 100644 aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/IHttpSysRequestTimingFeature.csproj
 create mode 100644 aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/Program.cs
 delete mode 100644 aspnetcore/fundamentals/request-features/samples/removeMe.txt

diff --git a/aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/IHttpSysRequestTimingFeature.csproj b/aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/IHttpSysRequestTimingFeature.csproj
new file mode 100644
index 0000000000..8116bc0363
--- /dev/null
+++ b/aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/IHttpSysRequestTimingFeature.csproj
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <InvariantGlobalization>true</InvariantGlobalization>
+  </PropertyGroup>
+
+</Project>
diff --git a/aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/Program.cs b/aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/Program.cs
new file mode 100644
index 0000000000..86e399a6de
--- /dev/null
+++ b/aspnetcore/fundamentals/request-features/samples/8.x/IHttpSysRequestTimingFeature/Program.cs
@@ -0,0 +1,110 @@
+#define WithTimestamps // WithTimestamps, WithTryGetTimestamp, WithTryGetElapsedTime
+
+using Microsoft.AspNetCore.Http.Features;
+using Microsoft.AspNetCore.Server.HttpSys;
+
+#if WithTimestamps
+#region snippet_WithTimestamps
+var builder = WebApplication.CreateBuilder(args);
+
+builder.WebHost.UseHttpSys();
+
+var app = builder.Build();
+
+app.Use((context, next) =>
+{
+    var feature = context.Features.GetRequiredFeature<IHttpSysRequestTimingFeature>();
+    
+    var loggerFactory = context.RequestServices.GetRequiredService<ILoggerFactory>();
+    var logger = loggerFactory.CreateLogger("Sample");
+
+    var timestamps = feature.Timestamps;
+
+    for (var i = 0; i < timestamps.Length; i++)
+    {
+        var timestamp = timestamps[i];
+        var timingType = (HttpSysRequestTimingType)i;
+
+        logger.LogInformation("Timestamp {timingType}: {timestamp}", timingType, timestamp);
+    }
+
+    return next(context);
+});
+
+app.MapGet("/", () => Results.Ok());
+
+app.Run();
+#endregion
+#elif WithTryGetTimestamp
+#region snippet_WithTryGetTimestamp
+var builder = WebApplication.CreateBuilder(args);
+
+builder.WebHost.UseHttpSys();
+
+var app = builder.Build();
+
+app.Use((context, next) =>
+{
+    var feature = context.Features.GetRequiredFeature<IHttpSysRequestTimingFeature>();
+
+    var loggerFactory = context.RequestServices.GetRequiredService<ILoggerFactory>();
+    var logger = loggerFactory.CreateLogger("Sample");
+
+    var timingType = HttpSysRequestTimingType.RequestRoutingEnd;
+
+    if (feature.TryGetTimestamp(timingType, out var timestamp))
+    {
+        logger.LogInformation("Timestamp {timingType}: {timestamp}", timingType, timestamp);
+    }
+    else
+    {
+        logger.LogInformation("Timestamp {timingType}: not available for the current request", timingType);
+    }
+
+    return next(context);
+});
+
+app.MapGet("/", () => Results.Ok());
+
+app.Run();
+#endregion
+#elif WithTryGetElapsedTime
+#region snippet_WithTryGetElapsedTime
+var builder = WebApplication.CreateBuilder(args);
+
+builder.WebHost.UseHttpSys();
+
+var app = builder.Build();
+
+app.Use((context, next) =>
+{
+    var feature = context.Features.GetRequiredFeature<IHttpSysRequestTimingFeature>();
+
+    var loggerFactory = context.RequestServices.GetRequiredService<ILoggerFactory>();
+    var logger = loggerFactory.CreateLogger("Sample");
+
+    var startingTimingType = HttpSysRequestTimingType.RequestRoutingStart;
+    var endingTimingType = HttpSysRequestTimingType.RequestRoutingEnd;
+
+    if (feature.TryGetElapsedTime(startingTimingType, endingTimingType, out var elapsed))
+    {
+        logger.LogInformation("Elapsed time {startingTimingType} to {endingTimingType}: {elapsed}",
+            startingTimingType,
+            endingTimingType,
+            elapsed);
+    }
+    else
+    {
+        logger.LogInformation("Elapsed time {startingTimingType} to {endingTimingType}: not available for the current request.",
+            startingTimingType,
+            endingTimingType);
+    }
+
+    return next(context);
+});
+
+app.MapGet("/", () => Results.Ok());
+
+app.Run();
+#endregion
+#endif
diff --git a/aspnetcore/fundamentals/request-features/samples/removeMe.txt b/aspnetcore/fundamentals/request-features/samples/removeMe.txt
deleted file mode 100644
index 897beaa0bc..0000000000
--- a/aspnetcore/fundamentals/request-features/samples/removeMe.txt
+++ /dev/null
@@ -1 +0,0 @@
-Remove after creating sample