Configure an app or service to use Application Insights

To configure an app or service to use Application Insights, follow these steps:

1. Create an Application Insights resource in Azure portal

   • Log in to the Azure portal (portal.azure.com) with your Azure account.
   • Click on “Create a resource” and search for “Application Insights”.
   • Select “Application Insights” from the results and click “Create”.
   • Provide a unique name for the resource, select the appropriate subscription, resource group, and location.
   • Choose the application type that best suits your scenario and click “Review + create”.
   • Review the settings and click “Create” to create the Application Insights resource.

2. Retrieve the Instrumentation Key

   • Once the resource is created, navigate to the resource in Azure portal.
   • Under the “Overview” section, you will find the “Instrumentation Key”. This key is used to enable telemetry collection in your application.

3. Configure the app or service to use Application Insights

   The configuration steps vary depending on the type of application or service you are using. Here are a few examples:

   • Configuring a .NET Core application

     • Install the Microsoft.ApplicationInsights.AspNetCore NuGet package to your project.
     • Open the Program.cs file and add the following code inside the CreateHostBuilder method:

     .UseApplicationInsights()

     • Open the appsettings.json file and add the following code under the “Logging” section:

     "ApplicationInsights": {
 "ConnectionString": "InstrumentationKey=YOUR_INSTRUMENTATION_KEY"
}

     Replace YOUR_INSTRUMENTATION_KEY with the actual Instrumentation Key retrieved in step 2.

   • Configuring an Azure Function

     • Open the Function App in Azure portal.
     • Go to the “Application settings” section.
     • Add a new setting with the name APPINSIGHTS_INSTRUMENTATIONKEY and set its value to the Instrumentation Key retrieved in step 2.

   • Configuring an ASP.NET MVC application

     • Install the Microsoft.ApplicationInsights.Web NuGet package to your project.
     • Open the Global.asax.cs file and add the following code inside the Application_Start method:

     TelemetryConfiguration.Active.InstrumentationKey = "YOUR_INSTRUMENTATION_KEY";

     Replace YOUR_INSTRUMENTATION_KEY with the actual Instrumentation Key retrieved in step 2.

4. Verify telemetry data collection

   After configuring your app or service with Application Insights, you can verify if telemetry data is being collected properly. Perform actions in your application and navigate to the Application Insights resource in Azure portal. Explore the available charts, metrics, and logs to analyze the collected telemetry data.

By following these steps, you can easily configure an app or service to use Application Insights for monitoring and analyzing its performance and usage.