AzureFunctions.Better.ApplicationInsights 4.0.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package AzureFunctions.Better.ApplicationInsights --version 4.0.0                
NuGet\Install-Package AzureFunctions.Better.ApplicationInsights -Version 4.0.0                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="AzureFunctions.Better.ApplicationInsights" Version="4.0.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add AzureFunctions.Better.ApplicationInsights --version 4.0.0                
#r "nuget: AzureFunctions.Better.ApplicationInsights, 4.0.0"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install AzureFunctions.Better.ApplicationInsights as a Cake Addin
#addin nuget:?package=AzureFunctions.Better.ApplicationInsights&version=4.0.0

// Install AzureFunctions.Better.ApplicationInsights as a Cake Tool
#tool nuget:?package=AzureFunctions.Better.ApplicationInsights&version=4.0.0                

Better Azure Functions Application Insights integration

🚨 The customisation supports in-process Functions only. Isolated Functions are not supported.

Beginning 10 November 2026, the in-process model for .NET apps in Azure Functions will no longer be supported. Migrate to the isolated worked model.

Automatically discards redundant telemetry items such as Functions execution traces and duplicate exceptions. Allows you to register your own telemetry processor(s) that will be invoked on every telemetry item type.

More detailed documentation is available on GitHub.

Usage

In your Startup class add the below snippet:

var appInsightsOptions = new CustomApplicationInsightsOptionsBuilder(
        "{ApplicationName}",
        {TypeFromEntryAssembly})
    .Build();

builder.Services
    .AddCustomApplicationInsights(appInsightsOptions);

Where

  • {ApplicationName} used to set Application Insights' Cloud role name (optional). When not provided, the default behaviour is preserved (the Cloud role name will be set to the Function App's name)
  • {TypeFromEntryAssembly} typically would be typeof(Startup). When {ApplicationName} is provided, I read the Assembly Informational Version of the entry assembly to set Application Insights' Application version (I use unknown as a fallback). When {ApplicationName} is not provided, Application version will not be present on the telemetry items

Additionally you can discard health requests and Service Bus trigger traces using application settings:

{
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet",
    "ApplicationInsights:DiscardServiceBusTrigger": true,
    "ApplicationInsights:HealthCheckFunctionName": "HealthFunction" // The name of the Function, not the route
  }
}

You can also add telemetry initializers and telemetry processors:

public override void Configure(IFunctionsHostBuilder builder)
{
    var appInsightsOptions = new CustomApplicationInsightsOptionsBuilder(
            "customv4inprocess", // Will be used as Cloud role name
            typeof(Startup)) // Assembly Informational Version will be used as Application version
        .Build();

    builder.Services
        // Telemetry processors are supported on all telemetry item types
        .AddApplicationInsightsTelemetryProcessor<CustomHttpDependencyFilter>()
        .AddSingleton<ITelemetryInitializer, TelemetryCounterInitializer>()
        /*
         * When adding an instance of a telemetry initializer, you need to provide the service Type otherwise
         * your initializer will not be used.
         *
         * <code>
         * // Do not use:
         * .AddSingleton(new TelemetryCounterInstanceInitializer("NiceValue"))
         * </code>
         */
        .AddSingleton<ITelemetryInitializer>(new TelemetryCounterInstanceInitializer("NiceValue"))
        .AddCustomApplicationInsights(appInsightsOptions);
}

Limitations

Setting the cloud role name breaks the Function's Monitor blade.

Migration guides

Release notes

Release notes can be found on GitHub.

Feedback

Leave feedback by opening an issue on GitHub.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
4.0.1 37 12/21/2024
4.0.0 41 12/21/2024
3.1.0 100 11/23/2024
3.0.0 1,248 5/26/2024
2.0.2 377 3/31/2024
2.0.1 9,048 8/25/2023
2.0.1-alpha.0.10 83 8/22/2023
2.0.1-alpha.0.9 105 8/19/2023
2.0.0 1,233 7/26/2023
2.0.0-preview.0.5 109 7/17/2023
2.0.0-preview.0.4 98 7/16/2023
1.0.1 4,193 3/3/2023
1.0.0 252 2/26/2023
0.1.1 7,582 8/8/2022
0.1.0 548 7/29/2022