Report metrics to Application Insights

src/Podsync/Controllers/DownloadController.cs

@@ -1,4 +1,5 @@
 using System.Threading.Tasks;
+using Microsoft.ApplicationInsights;
 using Microsoft.AspNetCore.Mvc;
 using Podsync.Helpers;
 using Podsync.Services.Links;
@@ -14,12 +15,14 @@ namespace Podsync.Controllers
         private readonly IResolverService _resolverService;
         private readonly ILinkService _linkService;
         private readonly IStorageService _storageService;
+        private readonly TelemetryClient _telemetry;
 
-        public DownloadController(IResolverService resolverService, ILinkService linkService, IStorageService storageService)
+        public DownloadController(IResolverService resolverService, ILinkService linkService, IStorageService storageService, TelemetryClient telemetry)
         {
             _resolverService = resolverService;
             _linkService = linkService;
             _storageService = storageService;
+            _telemetry = telemetry;
         }
         
         // Main video download endpoint, don't forget to reflect any changes in LinkService.Download
@@ -38,6 +41,9 @@ namespace Podsync.Controllers
 
             var redirectUrl = await _resolverService.Resolve(url, metadata.Quality);
 
+            // Report metrics
+            _telemetry.TrackEvent("Download");
+
             return Redirect(redirectUrl.ToString());
         }
     }

src/Podsync/Controllers/FeedController.cs

@@ -1,8 +1,10 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.Security.Claims;
 using System.Threading.Tasks;
 using System.Xml.Serialization;
+using Microsoft.ApplicationInsights;
 using Microsoft.AspNetCore.Mvc;
 using Podsync.Helpers;
 using Podsync.Services;
@@ -27,12 +29,14 @@ namespace Podsync.Controllers
         private readonly IRssBuilder _rssBuilder;
         private readonly ILinkService _linkService;
         private readonly IStorageService _storageService;
+        private readonly TelemetryClient _telemetry;
 
-        public FeedController(IRssBuilder rssBuilder, ILinkService linkService, IStorageService storageService)
+        public FeedController(IRssBuilder rssBuilder, ILinkService linkService, IStorageService storageService, TelemetryClient telemetry)
         {
             _rssBuilder = rssBuilder;
             _linkService = linkService;
             _storageService = storageService;
+            _telemetry = telemetry;
         }
 
         [HttpPost]
@@ -51,14 +55,36 @@ namespace Podsync.Controllers
                 PageSize = request.PageSize ?? DefaultPageSize
             };
 
-            if (!User.EnablePatreonFeatures())
+            // Check if user eligible for Patreon features
+            var enablePatreonFeatures = User.EnablePatreonFeatures();
+            if (!enablePatreonFeatures)
             {
                 feed.Quality = ResolveType.VideoHigh;
                 feed.PageSize = DefaultPageSize;
             }
 
             var feedId = await _storageService.Save(feed);
-            return _linkService.Feed(Request.GetBaseUrl(), feedId);
+            var url = _linkService.Feed(Request.GetBaseUrl(), feedId);
+
+            // Report metrics
+            var properties = new Dictionary<string, string>
+            {
+                ["Provider"] = linkInfo.Provider.ToString(),
+                ["Patreon"] = enablePatreonFeatures.ToString(),
+                ["Format"] = feed.Quality == ResolveType.AudioHigh || feed.Quality == ResolveType.AudioLow ? "Audio" : "Video",
+                ["Quality"] = feed.Quality == ResolveType.AudioHigh || feed.Quality == ResolveType.VideoHigh ? "Hight" : "Low",
+                ["PageSize"] = feed.PageSize.ToString()
+            };
+
+            if (User.Identity.IsAuthenticated)
+            {
+                properties.Add("User", User.GetClaim(ClaimTypes.NameIdentifier));
+                properties.Add("Email", User.GetClaim(ClaimTypes.Email));
+            }
+
+            _telemetry.TrackEvent("CreateFeed", properties);
+
+            return url;
         }
 
         [HttpGet]
@@ -90,6 +116,9 @@ namespace Podsync.Controllers
                 body = writer.ToString();
             }
 
+            // Report metrics
+            _telemetry.TrackEvent("GetFeed");
+
             return Content(body, "application/rss+xml; charset=UTF-8");
         }
     }

src/Podsync/Helpers/Extensions.cs

@@ -68,7 +68,7 @@ namespace Podsync.Helpers
                    ?? "noname :(";
         }
 
-        private static string GetClaim(this ClaimsPrincipal claimsPrincipal, string type)
+        public static string GetClaim(this ClaimsPrincipal claimsPrincipal, string type)
         {
             return claimsPrincipal.Claims.FirstOrDefault(x => x.Type == type)?.Value;
         }

src/Podsync/Podsync.xproj

@@ -14,6 +14,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <SchemaVersion>2.0</SchemaVersion>
+    <ApplicationInsightsResourceId>/subscriptions/6ced39ae-0008-4531-bf42-4c517d4fb309/resourcegroups/podsync_group/providers/microsoft.insights/components/podsync</ApplicationInsightsResourceId>
   </PropertyGroup>
   <ItemGroup>
     <DnxInvisibleContent Include=".bowerrc" />

src/Podsync/Service References/Application Insights/ConnectedService.json

@@ -0,0 +1,7 @@
+{
+  "ProviderId": "Microsoft.ApplicationInsights.ConnectedService.ConnectedServiceProvider",
+  "Version": "7.15.1215.1",
+  "GettingStartedDocument": {
+    "Uri": "https://go.microsoft.com/fwlink/?LinkID=798432"
+  }
+}

src/Podsync/Startup.cs

@@ -32,6 +32,7 @@ namespace Podsync
             if (env.IsDevelopment())
             {
                 builder.AddUserSecrets();
+                builder.AddApplicationInsightsSettings(true);
             }
 
             Configuration = builder.Build();
@@ -56,6 +57,7 @@ namespace Podsync
             services.AddAuthentication(config => config.SignInScheme = CookieAuthenticationDefaults.AuthenticationScheme);
 
             // Add framework services
+            services.AddApplicationInsightsTelemetry(Configuration);
             services.AddMvc();
         }
 
@@ -65,6 +67,9 @@ namespace Podsync
             loggerFactory.AddConsole(Configuration.GetSection("Logging"));
             loggerFactory.AddDebug();
 
+            app.UseApplicationInsightsRequestTelemetry();
+            app.UseApplicationInsightsExceptionTelemetry();
+
             if (env.IsDevelopment())
             {
                 app.UseDeveloperExceptionPage();

src/Podsync/Views/Shared/_Layout.cshtml

@@ -21,7 +21,8 @@
     <environment Names="Staging,Production">
         <link rel="stylesheet" href="css/site.min.css" asp-append-version="true" />
     </environment>
-
+    
+    @Html.ApplicationInsightsJavaScript(TelemetryConfiguration)
 </head>
 <body>
 <div class="background-image">

src/Podsync/Views/_ViewImports.cshtml

@@ -1,2 +1,4 @@
 @using Podsync
 @addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+
+@inject Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration TelemetryConfiguration

src/Podsync/appsettings.json

@@ -1,4 +1,4 @@
-{
+{
   "Logging": {
     "IncludeScopes": false,
     "LogLevel": {
@@ -7,12 +7,14 @@
       "Microsoft": "Information"
     }
   },
-
   "Podsync": {
     "YouTubeApiKey": "",
     "RedisConnectionString": "localhost",
     "BaseUrl": "",
     "PatreonClientId": "",
     "PatreonSecret": ""
+  },
+  "ApplicationInsights": {
+    "InstrumentationKey": ""
   }
-}
+}

src/Podsync/project.json

@@ -1,7 +1,8 @@
-{
+{
   "dependencies": {
     "Google.Apis.YouTube.v3": "1.16.0.582",
     "Hashids.net": "1.2.2",
+    "Microsoft.ApplicationInsights.AspNetCore": "1.0.0",
     "Microsoft.AspNetCore.Authentication.Cookies": "1.0.0",
     "Microsoft.AspNetCore.Authentication.OAuth": "1.0.0",
     "Microsoft.AspNetCore.Diagnostics": "1.0.0",