Want to use OpenTelemetry instead? Read these docs to get started!

Follow these steps to configure your tracer to communicate with the Lightstep Satellites and create a single span on your service. You install both the OpenTracing API and Lightstep tracer and then use the OpenTracing and Lightstep APIs to instrument your code.

While Lightstep offers tracers and APIs specific to its tracing software, you will still use the OpenTracing API to fully instrument your code. Be sure you have read and are familiar with both Lightsteptracers and the OpenTracing specification in your application’s language.

C# Instrumentation for OpenTracing

  1. Find your access token in Lightstep. You’ll need this to configure your Lightstep tracer.
    • Click the Project Settings button.
    • In the Access Tokens table, click the Copy icon to copy your access token to the clipboard.
  2. Add the Lightstep tracer to your .NET project using NuGet or by running the following command for .NET Core projects.

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    dotnet add package LightStep
    
  3. In your application code, add a reference to the Lightstep tracer and OpenTracing API.

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    using LightStep;
    using OpenTracing.Util;
    
  4. Early in your application’s initialization, configure the Lightstep tracer and register it as the OpenTracing Global Tracer. As part of the configuration, you need to add your access token and add a tag for your service’s name. Use this table for Satellite options.

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    On-Premise Satellites

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     var satelliteOptions = new SatelliteOptions("your_load_balancer_DNS_name_or_IP_address");
     var overrideTags = new Dictionary<string, object>
     {
       { LightStepConstants.ComponentNameKey, "YOUR_SERVICE_NAME" },
       {"my_tag", "foobar"}
     };
    
     var tracerOptions = new Options("YOUR_ACCESS_TOKEN").WithSatellite(satelliteOptions).WithTags(overrideTags);
     var lightStepTracer = new Tracer(tracerOptions);
    
     GlobalTracer.Register(lightStepTracer);
    

    Public Satellites

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     var satelliteOptions = new SatelliteOptions("ingest.lightstep.com");
     var overrideTags = new Dictionary<string, object>
     {
       { LightStepConstants.ComponentNameKey, "YOUR_SERVICE_NAME" },
       {"my_tag", "foobar"}
     };
    
     var tracerOptions = new Options("YOUR_ACCESS_TOKEN").WithSatellite(satelliteOptions).WithTags(overrideTags);
     var lightStepTracer = new Tracer(tracerOptions);
    
     GlobalTracer.Register(lightStepTracer);
    

    Developer Mode

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     var satelliteOptions = new SatelliteOptions("localhost");
     var overrideTags = new Dictionary<string, object>
     {
       { LightStepConstants.ComponentNameKey, "YOUR_SERVICE_NAME" },
       {"my_tag", "foobar"}
     };
    
     var tracerOptions = new Options("YOUR_ACCESS_TOKEN").WithSatellite(satelliteOptions).WithTags(overrideTags);
     var lightStepTracer = new Tracer(tracerOptions);
    
     GlobalTracer.Register(lightStepTracer);
    

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  5. Test that everything is connected by sending a test span. Annotate the span by adding a tag (key/value pair) and logs, then flush the tracer.

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     var span = lightStepTracer.BuildSpan("testSpan").Start();
     span.Log("This is a log message!");
     // for tag value, use either "client" or "server" depending on whether
     // this service receives or creates requests
     span.SetTag("span.kind", "client");
     span.Finish();
     // manually flush the tracer to make sure your span is sent.
     lightStepTracer.Flush();
    
     // if this is a console app, make sure you Console.ReadKey() or have some other sort of blocking behavior as flushing the tracer is asynchronous.
    
  6. Run your app.
  7. Open Lightstep. You should see your service in the Service directory list.

If you want to continue adding instrumentation by creating more spans and connecting them into traces, continue on with C#: Add Spans.

It may take a few moments for your service to display in the Service Directory. To see data immediately, click the Explorer tab to view data in the histogram.