Update to .NET6, Serilog 2.12 and Sinks.ApplicationInsights 4.0.0 - azure-application-insights

Question

I have updated a worker service application to .NET6 from .NET Core 3.1, and also updated Serilog and the Application Insights sink to the latest versions.
I noticed that even though I this entry on the configuration, I don't see the application name on App Insights, it is always blank. This used to work with the previous version
"WriteTo": [
{
"Name": "ApplicationInsights",
"Args": {
"restrictedToMinimumLevel": "Information",
"telemetryConverter": "Serilog.Sinks.ApplicationInsights.TelemetryConverters.TraceTelemetryConverter, Serilog.Sinks.ApplicationInsights",
"InstrumentationKey": "<Key>"
}
}
],
"Enrich": [ "FromLogContext" ],
"Properties": {
"Application": "ApplicationName"
}
Any idea how I get this to work again?
Thank you,

Answer 1

Check the below steps to get the ApplicationName on App Insights for .NET 6 Application.
Updated the Serilog.AspNetCore and Sinks.ApplicationInsights packages to the latest version.
Add .Enrich.FromLogContext() and
.Enrich.WithProperty("ApplicationName", appname) in Program.cs file.
My appsettings.json file :
{
"Logging": {
"ApplicationInsights": {
"LogLevel": {
"Default": "Debug",
"Microsoft": "Error"
}
},
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*",
"ApplicationInsights": {
"ConnectionString": "InstrumentationKey=*****;IngestionEndpoint=https://****.in.applicationinsights.azure.com/;LiveEndpoint=https://****.livediagnostics.monitor.azure.com/"
},
"WriteTo": [
{
"Name": "ApplicationInsights",
"Args": {
"restrictedToMinimumLevel": "Information",
"telemetryConverter": "Serilog.Sinks.ApplicationInsights.TelemetryConverters.TraceTelemetryConverter, Serilog.Sinks.ApplicationInsights",
"InstrumentationKey": "Copy the Instrumentation Key"
}
}
],
"Enrich": [ "FromLogContext" ],
"Properties": {
"Application": "Serilog Application Insights"
}
}
My Program.cs file :
using Serilog;
using Serilog.Sinks.ApplicationInsights.TelemetryConverters;
using System.ComponentModel;
using static System.Net.Mime.MediaTypeNames;
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddControllersWithViews();
var appname = builder.Configuration.GetSection("Properties").GetValue<string>("Application");
var AIConn = builder.Configuration.GetSection("ApplicationInsights").GetValue<string>("ConnectionString");
var log = new LoggerConfiguration()
.Enrich.FromLogContext()
.Enrich.WithProperty("ApplicationName", appname)
.WriteTo.ApplicationInsights(AIConn, new TraceTelemetryConverter())
.CreateLogger();
Log.Information("Log message from Program.cs file");
Log.Warning("Warning Message");
builder.Logging.AddSerilog(log);
var app = builder.Build();
if (!app.Environment.IsDevelopment())
{
app.UseExceptionHandler("/Home/Error");
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthorization();
app.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
app.Run();
My .csproj file :
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Serilog.AspNetCore" Version="6.1.0" />
<PackageReference Include="Serilog.Sinks.ApplicationInsights" Version="4.0.0" />
</ItemGroup>
</Project>
In Transaction search, click on any of the trace.
It will be redirected to the End-to-end transaction details.
OutPut in Application Insights :