Microsoft.Azure.Functions.Worker.OpenTelemetry 1.2.0

Prefix Reserved
dotnet add package Microsoft.Azure.Functions.Worker.OpenTelemetry --version 1.2.0
                    
NuGet\Install-Package Microsoft.Azure.Functions.Worker.OpenTelemetry -Version 1.2.0
                    
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="Microsoft.Azure.Functions.Worker.OpenTelemetry" Version="1.2.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Microsoft.Azure.Functions.Worker.OpenTelemetry" Version="1.2.0" />
                    
Directory.Packages.props
<PackageReference Include="Microsoft.Azure.Functions.Worker.OpenTelemetry" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Microsoft.Azure.Functions.Worker.OpenTelemetry --version 1.2.0
                    
#r "nuget: Microsoft.Azure.Functions.Worker.OpenTelemetry, 1.2.0"
                    
#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.
#:package Microsoft.Azure.Functions.Worker.OpenTelemetry@1.2.0
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Microsoft.Azure.Functions.Worker.OpenTelemetry&version=1.2.0
                    
Install as a Cake Addin
#tool nuget:?package=Microsoft.Azure.Functions.Worker.OpenTelemetry&version=1.2.0
                    
Install as a Cake Tool

Microsoft.Azure.Functions.Worker.OpenTelemetry

This package adds extension methods and services to configure OpenTelemetry for use in Azure Functions .NET isolated applications.

This package does not add OpenTelemetry services directly. This must be done directly. Instead, this package only configures isolated application and resource detector.

Getting Started

  1. Add packages
dotnet add package Azure.Monitor.OpenTelemetry.AspNetCore
dotnet add package Microsoft.Azure.Functions.Worker.OpenTelemetry --prerelease
  1. Configure ApplicationInsights using Azure Monitor OpenTelemetry Distro
services.AddOpenTelemetry()
 .UseFunctionsWorkerDefaults()
 .UseAzureMonitor();

UseFunctionsWorkerDefaults

UseFunctionsWorkerDefaults() method will configure the following:

  1. Resource detector for Azure Functions
  2. Adds a capability to avoid duplicate telemetry
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  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.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on Microsoft.Azure.Functions.Worker.OpenTelemetry:

Package Downloads
Indice.Functions.Builder

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GitHub repositories (4)

Showing the top 4 popular GitHub repositories that depend on Microsoft.Azure.Functions.Worker.OpenTelemetry:

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microsoft/aspire
Aspire is the tool for code-first, extensible, observable dev and deploy.
polymind-inc/acmebot
Automated ACME SSL/TLS certificate management built around Azure Key Vault
Azure/azure-functions-templates
Azure functions templates for the azure portal, CLI, and VS
Azure-Samples/remote-mcp-functions-dotnet
This is a quickstart template to easily build and deploy a custom remote MCP server to the cloud using Azure functions. You can clone/restore/run on your local machine with debugging, and `azd up` to have it in the cloud in a couple minutes. The MCP server is secured by design using
Version Downloads Last Updated
1.2.0 101,132 4/21/2026
1.1.0 539,378 11/14/2025
1.1.0-preview6 791,824 11/12/2024
1.1.0-preview5 5,932 10/29/2024
1.1.0-preview4 32,831 10/23/2024
1.1.0-preview3 221 10/22/2024
1.1.0-preview2 11,310 10/15/2024
1.0.0-preview1 250,869 4/22/2024

## What's Changed

### Microsoft.Azure.Functions.Worker.OpenTelemetry 1.2.0

- Add support for propagating OpenTelemetry baggage to the worker (#3319).
- `FunctionsResourceDetector` now respects `OTEL_SERVICE_NAME` and `OTEL_RESOURCE_ATTRIBUTES` — when either is set, the detector skips adding `service.name` and/or `service.version` so the OTel SDK picks them up without duplication  (#3362).