make TrackRequest and TrackException output some debug data

TemplateIntegrationExample/src/Microsoft.ApplicationInsights.AspNet/ApplicationInsightMiddlewareExtensions.cs

@@ -7,13 +7,13 @@
     {
 		public static IApplicationBuilder UseApplicationInsightsRequestTelemetry(this IApplicationBuilder app)
 		{
-			app.UseMiddleware<ApplicationInsightsMiddleware>();
+			app.UseMiddleware<ApplicationInsightsRequestMiddleware>();
 			return app;
 		}
 
 		public static IApplicationBuilder UseApplicationInsightsExceptionTelemetry(this IApplicationBuilder app)
 		{
-			app.UseMiddleware<ApplicationInsightsMiddleware>();
+			app.UseMiddleware<ApplicationInsightsExceptionMiddleware>();
 			return app;
 		}
 

TemplateIntegrationExample/src/Microsoft.ApplicationInsights.AspNet/ApplicationInsightsJavaScriptSnippetExtensions.cs

@@ -7,12 +7,23 @@ namespace Microsoft.ApplicationInsights.AspNet
 	using System.Collections.Generic;
 
 	public static class ApplicationInsightsJavaScriptSnippetExtensions
-    {
+	{
 		public static HtmlString ApplicationInsightsJavaScriptSnippet(this IHtmlHelper helper, string instrumentationKey, Dictionary<string, string> parameters = null)
 		{
 			//see: https://github.com/aspnet/Mvc/issues/2056
 			//var client = (TelemetryClient)helper.ViewContext.HttpContext.ApplicationServices.GetService(typeof(TelemetryClient));
-			return new HtmlString("<script language='javascript'>alert('Key: ' + '" + instrumentationKey + "');</script>");
+			return new HtmlString(@"<script language='javascript'>
+				var appInsights = window.appInsights || function(config){
+					function s(config){t[config]=function(){var i=arguments; t.queue.push(function(){ t[config].apply(t, i)})}
+					}
+					var t = { config:config }, r = document, f = window, e = ""script"", o = r.createElement(e), i, u;for(o.src=config.url||""//az416426.vo.msecnd.net/scripts/a/ai.0.js"",r.getElementsByTagName(e)[0].parentNode.appendChild(o),t.cookie=r.cookie,t.queue=[],i=[""Event"",""Exception"",""Metric"",""PageView"",""Trace""];i.length;)s(""track""+i.pop());return config.disableExceptionTracking||(i=""onerror"",s(""_""+i),u=f[i],f[i]=function(config, r, f, e, o) { var s = u && u(config, r, f, e, o); return s !== !0 && t[""_"" + i](config, r, f, e, o),s}),t
+                }({
+					instrumentationKey:""" + instrumentationKey + @"""
+				});
+
+				window.appInsights=appInsights;
+				appInsights.trackPageView();
+ </script>");
 		}
 	}
 }

TemplateIntegrationExample/src/Microsoft.ApplicationInsights.AspNet/ApplicationInsightsMiddleware.cs

@@ -5,12 +5,12 @@
 	using System;
 	using System.Threading.Tasks;
 
-	public class ApplicationInsightsMiddleware
+	public class ApplicationInsightsRequestMiddleware
 	{
 		private readonly RequestDelegate next;
 		private readonly TelemetryClient client;
 
-		public ApplicationInsightsMiddleware(RequestDelegate next, TelemetryClient client)
+		public ApplicationInsightsRequestMiddleware(RequestDelegate next, TelemetryClient client)
 		{
 			this.next = next;
 			this.client = client;
@@ -18,9 +18,33 @@
 
 		public async Task Invoke(HttpContext context)
 		{
-			this.client.TrackRequest();
+			this.client.TrackRequest(context.Request.Path.ToString());
 			await this.next(context);
 		}
 	}
+	public class ApplicationInsightsExceptionMiddleware
+	{
+		private readonly RequestDelegate next;
+		private readonly TelemetryClient client;
+
+		public ApplicationInsightsExceptionMiddleware(RequestDelegate next, TelemetryClient client)
+		{
+			this.next = next;
+			this.client = client;
+		}
+
+		public async Task Invoke(HttpContext context)
+		{
+			try
+			{
+				await this.next(context);
+			}
+			catch (Exception ex)
+			{
+				this.client.TrackException(ex.ToString());
+				throw;
+			}
+		}
+	}
 }
 

TemplateIntegrationExample/src/Microsoft.ApplicationInsights.AspNet/TelemetryClient.cs

@@ -22,9 +22,14 @@
 		{
 		}
 
-		public void TrackRequest()
+		public void TrackRequest(string path)
 		{
-			Debug.WriteLine("Track Request " + this.config.InstrumentationKey);
+			Debug.WriteLine("Track Request (instrumentation key = " + (this.config.InstrumentationKey ?? "") + "): " + (path ?? ""));
+		}
+
+		public void TrackException(string ex)
+		{
+			Debug.WriteLine("Track Exception (instrumentation key = " + (this.config.InstrumentationKey ?? "") + "):" + (ex ?? ""));
 		}
 
 		private readonly TelemetryContext context;