OpenTelemetry.Instrumentation.EventCounters 1.13.0-alpha.1

Prefix Reserved
.NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher.
This is a prerelease version of OpenTelemetry.Instrumentation.EventCounters. 
dotnet add package OpenTelemetry.Instrumentation.EventCounters --version 1.13.0-alpha.1
                    


                    

                
NuGet\Install-Package OpenTelemetry.Instrumentation.EventCounters -Version 1.13.0-alpha.1
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="OpenTelemetry.Instrumentation.EventCounters" Version="1.13.0-alpha.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="OpenTelemetry.Instrumentation.EventCounters" Version="1.13.0-alpha.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="OpenTelemetry.Instrumentation.EventCounters" />
                    


                            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 OpenTelemetry.Instrumentation.EventCounters --version 1.13.0-alpha.1
                    


                    

                
#r "nuget: OpenTelemetry.Instrumentation.EventCounters, 1.13.0-alpha.1"
#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 OpenTelemetry.Instrumentation.EventCounters@1.13.0-alpha.1
#: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=OpenTelemetry.Instrumentation.EventCounters&version=1.13.0-alpha.1&prerelease
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=OpenTelemetry.Instrumentation.EventCounters&version=1.13.0-alpha.1&prerelease
                    


                            Install as a Cake Tool

EventCounters Instrumentation for OpenTelemetry .NET

Status
Stability Alpha
Code Owners @hananiel, @mic-max

NuGet version badge NuGet download count badge codecov.io

This is an Instrumentation Library , which republishes EventCounters using OpenTelemetry Metrics API.

Steps to enable OpenTelemetry.Instrumentation.EventCounters

You can view an example project using EventCounters at /examples/event-counters/Examples.EventCounters.

Step 1: Install Package

Add a reference to the OpenTelemetry.Instrumentation.EventCounters package.

dotnet add package OpenTelemetry.Instrumentation.EventCounters --prerelease

Step 2: Enable EventCounters Instrumentation

EventCounters instrumentation should be enabled at application startup using the AddEventCountersInstrumentation extension on the MeterProviderBuilder:

using var meterProvider = Sdk.CreateMeterProviderBuilder()
    .AddEventCountersInstrumentation(options => {
        options.RefreshIntervalSecs = 1;
        options.AddEventSources("MyEventSource");
    })
    .AddPrometheusHttpListener()
    .Build();

Additionally, the above snippet sets up the OpenTelemetry Prometheus exporter, which requires adding the package OpenTelemetry.Exporter.Prometheus to the application.

Step 3: Create EventCounters

Learn about EventCounters in .NET .

EventSource eventSource = new("MyEventSource");

EventCounter eventCounter = new("MyEventCounterName", eventSource);
eventCounter.WriteMetric(0);
eventCounter.WriteMetric(1000);

PollingCounter pollingCounter = new("MyPollingCounterName", eventSource, () => new Random().NextDouble());

Notes

The metrics will only be available after EventCounterIntervalSec seconds. Before that nothing will be exported, if anything is present at the Prometheus metrics endpoint it is from a prior execution. This is more evident when using longer polling intervals.

References

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.

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GitHub repositories (2)

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Repository Stars
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Version Downloads Last Updated
1.13.0-alpha.1 458 10/23/2025
1.5.1-alpha.1 4,729,325 7/11/2023
1.0.0-alpha.2 1,026,613 11/11/2022
1.0.0-alpha.1 36,995 10/17/2022
0.1.0-alpha.1 45,177 7/12/2022

For detailed changes see: https://github.com/open-telemetry/opentelemetry-dotnet-contrib/blob/7f261123461fe32c49ab419e25b346600e69a872/src/OpenTelemetry.Instrumentation.EventCounters/CHANGELOG.md.