Temporalio.Extensions.DiagnosticSource 0.1.0-beta2

System.Diagnostics.Metrics Support

This extension adds an implementation of Temporalio.Runtime.ICustomMetricMeter for System.Diagnostics.Metrics.Meter so internal SDK metrics can be forwarded as regular .NET metrics.

⚠️ UNDER ACTIVE DEVELOPMENT

This SDK is under active development and has not released a stable version yet. APIs may change in incompatible ways until the SDK is marked stable.

Quick Start

Add the Temporalio.Extensions.DiagnosticSource package from NuGet. For example, using the dotnet CLI:

dotnet add package Temporalio.Extensions.DiagnosticSource --prerelease

Now a Temporalio.Runtime.TemporalRuntime can be created with a .NET meter and a client can be created from that:

using System.Diagnostics.Metrics;
using Temporalio.Client;
using Temporalio.Extensions.DiagnosticSource;
using Temporalio.Runtime;

// Create .NET meter
using var meter = new Meter("My.Meter");
// Can create MeterListener or OTel meter provider here...

// Create Temporal runtime with a custom metric meter for that meter
var runtime = new TemporalRuntime(new()
{
    Telemetry = new()
    {
        Metrics = new() { CustomMetricMeter = new CustomMetricMeter(meter) },
    },
});

// Create a client using that runtime
var client = await TemporalClient.ConnectAsync(
    new()
    {
        TargetHost = "my-temporal-host:7233",
        Namespace = "my-temporal-namespace",
        Runtime = runtime,
    });

// Now all metrics for the client will go through the .NET meter

This client can be used for the worker too which means that all metrics, including ones created during activity using ActivityExecutionContext.Current.MetricMeter and during workflow using Workflow.MetricMeter, will be recorded on the .NET meter.