ASP.Net Core 3.1 WebAPI, using TelemetryClient Azure Application insights hides operations metrics[Answered] RSS

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  pacojones

  Member

  12 Points

  28 Posts

  ASP.Net Core 3.1 WebAPI, using TelemetryClient Azure Application insights hides operations metric...

  Feb 17, 2021 03:31 PM|pacojones|LINK

  Hi all, I have an ASP.Net Core 3.1 Web API installed as App Service in Azure.

  This App Service has the environment variable APPINSIGHTS_INSTRUMENTATIONKEY properly configured and until now it was writting operations like a charm.

  But my API also uses CosmosDB (Mongo) and these dependencies were not being tracked.

  After googling, I found out I had to use TelemetryClient.

  Registering:

  string appInsightsKey = Environment.GetEnvironmentVariable("APPINSIGHTS_INSTRUMENTATIONKEY");
  
              if (!string.IsNullOrEmpty(appInsightsKey))
              {
                  var telemetryConfig = TelemetryConfiguration.CreateDefault();
                  telemetryConfig.InstrumentationKey = appInsightsKey;
                  services.AddSingleton(new TelemetryClient(telemetryConfig));
  
                  var depModule = new DependencyTrackingTelemetryModule();
                  depModule.Initialize(telemetryConfig);
              }

  Then adding the client on my repository:

  MongoClientSettings settings = MongoClientSettings.FromUrl(new MongoUrl(repositoryConfiguration.ConnectionString)); ;
                  settings.SslSettings = new SslSettings() { EnabledSslProtocols = SslProtocols.Tls12 };
                  settings.SocketTimeout = TimeSpan.FromMilliseconds(repositoryConfiguration.TimeoutInMiliseconds);
                  settings.ConnectTimeout = TimeSpan.FromMilliseconds(repositoryConfiguration.TimeoutInMiliseconds);
                  settings.ServerSelectionTimeout = TimeSpan.FromMilliseconds(repositoryConfiguration.TimeoutInMiliseconds * 2);
  
                  if (_telemetryClient != null) // Initialize Application Insights
                  {
                      settings.ClusterConfigurator = clusterConfigurator =>
                      {
                          clusterConfigurator.Subscribe<CommandSucceededEvent>(e =>
                          {
                              _telemetryClient.TrackDependency("MongoDb", e.CommandName, e.Reply.ToString(), DateTime.Now.Subtract(e.Duration), e.Duration, true);
                          });
                          clusterConfigurator.Subscribe<CommandFailedEvent>(e =>
                          {
                              _telemetryClient.TrackDependency("MongoDb", $"{e.CommandName} - {e.ToString()}", e.Failure.ToString(), DateTime.Now.Subtract(e.Duration), e.Duration, false);
                          });
                      };
                  }
  
                  var mongoClient = new MongoClient(settings);

  Now when I go to my application insights, I only see dependencies and don't see any operations at all.

  Do I need to explicitly add also application insights on startup in order to use insights with telemetry client? Am I missing something here?

  Thanks a lot!

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  pacojones

  Member

  12 Points

  28 Posts

  Re: ASP.Net Core 3.1 WebAPI, using TelemetryClient Azure Application insights hides operations me...

  Feb 17, 2021 07:33 PM|pacojones|LINK

  Tried out installing package Microsoft.ApplicationInsights.AspNetCore and added the following line, works like a charm.

  services.AddApplicationInsightsTelemetry();