Liens

Read ApplicationInsights.conf

// Reads ApplicationInsights.config file in the working directory
TelemetryConfiguration config = TelemetryConfiguration.Active;

// Reads a specific ApplicationInsights.config file
TelemetryConfiguration configuration = TelemetryConfiguration.CreateFromConfiguration(File.ReadAllText("C:\\ApplicationInsights.config"));

var telemetryClient = new TelemetryClient(configuration);

Dependency injection

Prism WPF application

App.xaml.cs

// classe de type PrismApplication qui hérite de PrismApplicationBase (Prism.DryIoc)
public partial class App
{
    protected override void RegisterTypes(IContainerRegistry containerRegistry)
    {
        var config = TelemetryConfiguration.Active; // Reads ApplicationInsights.config file if present
        var telemetryClient = new TelemetryClient(config);
        containerRegistry.RegisterInstance(telemetryClient);
    }

Send telemetry to Application Insights

// create a dependency
using (telemetryClient.StartOperation<DependencyTelemetry>("Operation name"))
{

}

// log a trace
telemetryClient.TrackTrace("log message");

Adding the NuGet package Microsoft.ApplicationInsights.DependencyCollector will propagate the W3C Trace-Context from the caller (client) to the service (controller) link.
Adding the NuGet package Microsoft.ApplicationInsights.Web will automatically log all the incoming Request.

Advanced SQL tracking to get full SQL Query

Add the NuGet package Microsoft.ApplicationInsights.DependencyCollector

ApplicationInsights.conf

<?xml version="1.0" encoding="utf-8"?>

<ApplicationInsights xmlns="http://schemas.microsoft.com/ApplicationInsights/2013/Settings">
	
    <TelemetryModules>
        <Add Type="Microsoft.ApplicationInsights.DependencyCollector.DependencyTrackingTelemetryModule, Microsoft.AI.DependencyCollector">
            <EnableSqlCommandTextInstrumentation>true</EnableSqlCommandTextInstrumentation>
        </Add>

Capturing exceptions and related diagnostic data

App_Start\WebApiConfig.cs

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        /* ... */
        config.Services.Add(typeof(IExceptionLogger), new AiExceptionLogger());

AiExceptionLogger.cs

public class AiExceptionLogger : ExceptionLogger
{
    public TelemetryClient AppInsights { get; set; }

    public AiExceptionLogger()
    {
        AppInsights = new TelemetryClient();
    }

    public override void Log(ExceptionLoggerContext context)
    {
        if (context != null && context.Exception != null)
        {
            AppInsights.TrackException(context.Exception);
        }
        base.Log(context);

Visualiser les données dans visual studio

Cloud Explorer → My Subcription → Application Insights → clique-droit sur My Application Insight → Search

Installation

Automatique: Azure web app → Monitoring → Application Insights → No data? Automatically instrument your ASP.NET app (restart required)
Manuel: Azure web app → Extensions → Add → Application Insights

Ajouter les paquets NuGet

Tous: Clique-droit sur le projet → Add → Application Insights Telemetry
Exception tracking: Microsoft.ApplicationInsights.Web

ApplicationInsights.config

<?xml version="1.0" encoding="utf-8"?>
<ApplicationInsights xmlns="http://schemas.microsoft.com/ApplicationInsights/2013/Settings">
  <TelemetryInitializers>
    <!-- ... -->
  </TelemetryInitializers>
  <TelemetryModules>
    <!-- ... -->
  </TelemetryModules>
  <TelemetryProcessors>
    <!-- ... -->
  </TelemetryProcessors>
  <TelemetryChannel Type="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel.ServerTelemetryChannel, Microsoft.AI.ServerTelemetryChannel"/>
</ApplicationInsights>

Modules	Description	Package Nuget
Dependency Tracking	appels au bdd et services externes	Microsoft.ApplicationInsights.DependencyCollector
Performance collector	CPU, mémoire, charge réseau	Microsoft.ApplicationInsights.PerfCounterCollector
Application Insights Diagnostics Telemetry	erreur dans l'App Insight elle-même	Microsoft.ApplicationInsights
Developer Mode	force l'envoie des données immédiatement lorsque le debugger est attaché	Microsoft.ApplicationInsights.WindowsServer
Web Request Tracking	code et temps de réponse des requêtes HTTP	Microsoft.ApplicationInsights.Web
Exception tracking	exceptions non-gérées	Microsoft.ApplicationInsights.Web
EventSource Tracking	envoyer les EventSource comme des traces	Microsoft.ApplicationInsights.EventSourceListener
ETW Event Tracking	envoyer les événements des ETW providers comme des traces	Microsoft.ApplicationInsights.EtwCollector
Microsoft.ApplicationInsights	Core API pour le SDK	Microsoft.ApplicationInsights

Erreurs

AI: Performance counter is not available in the web app supported list

These warnings are expected as computer level counters are not accessible from the Azure Web App environment. There's no way to turn off any particular counter from the default counters collection, so please safely ignore them as it doesn't affect anything.

AI: Server telemetry channel was not initialized

AI: Server telemetry channel was not initialized. So persistent storage is turned off. You need to call ServerTelemetryChannel.Initialize(). Currently monitoring will continue but if telemetry cannot be sent it will be dropped.

Le fichier ApplicationInsights.config est manquant.

Application Insights

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