aspnetcore.md

Modify code

Make these necessary changes to the app.

• Install client library

dotnet add package Microsoft.ApplicationInsights.AspNetCore

• Configure the app to use Azure Monitor An ASP.NET Core app typically has a Program.cs file that "builds" the app. Find this file and apply these changes.
  • Add the following usings at the top:

using Microsoft.ApplicationInsights.DependencyCollector;
using Microsoft.ApplicationInsights.Extensibility;

• Before calling builder.Build(), add these lines:

builder.Services.AddApplicationInsightsTelemetry();
builder.Services.ConfigureOpenTelemetryTracerProvider(t => {
    t.AddAspNetCoreInstrumentation()
     .AddHttpClientInstrumentation()
     .AddSqlClientInstrumentation()
     .AddSource("MassTransit");
});

- If Serilog is used in the app, install the following client library:

dotnet add package Serilog.Sinks.ApplicationInsights

Add the following using at the top:
```csharp
using Serilog.Sinks.ApplicationInsights;

And add Application Insights as a sink to Serilog configuration:

 .WriteTo.ApplicationInsights(TelemetryConverter.Traces,LogEventLevel.Information)

Configure App Insights connection string

The App Insights resource has a connection string. Add the connection string to the appsettings.json file. You can use Azure CLI to query the connection string of the App Insights resource. See scripts/appinsights.ps1 for what Azure CLI command to execute for querying the connection string.

After getting the connection string, add it to the appsettings.json file with its value.

  "ApplicationInsights": {
    "ConnectionString":"{your_application_insights_connection_string}"
  }