exporters.md

title	weight
Exporters	50

{{% docs/languages/exporters/intro dotnet %}}

Dependencies {#otlp-dependencies}

If you want to send telemetry data to an OTLP endpoint (like the OpenTelemetry Collector, Jaeger or Prometheus), you can choose between two different protocols to transport your data:

• HTTP/protobuf
• gRPC

Start by installing the OpenTelemetry.Exporter.OpenTelemetryProtocol package as a dependency for your project:

dotnet add package OpenTelemetry.Exporter.OpenTelemetryProtocol

If you're using ASP.NET Core install the OpenTelemetry.Extensions.Hosting package as well:

dotnet add package OpenTelemetry.Extensions.Hosting

Usage

ASP.NET Core

Configure the exporters in your ASP.NET Core services:

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenTelemetry()
    .WithTracing(tracing => tracing
        // The rest of your setup code goes here
        .AddOtlpExporter())
    .WithMetrics(metrics => metrics
        // The rest of your setup code goes here
        .AddOtlpExporter());

builder.Logging.AddOpenTelemetry(logging => {
    // The rest of your setup code goes here
    logging.AddOtlpExporter();
});

This will, by default, send telemetry using gRPC to http://localhost:4317, to customize this to use HTTP and the protobuf format, you can add options like this:

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenTelemetry()
    .WithTracing(tracing => tracing
        // The rest of your setup code goes here
        .AddOtlpExporter(options =>
        {
            options.Endpoint = new Uri("your-endpoint-here/v1/traces");
            options.Protocol = OtlpExportProtocol.HttpProtobuf;
        }))
    .WithMetrics(metrics => metrics
        // The rest of your setup code goes here
        .AddOtlpExporter(options =>
        {
            options.Endpoint = new Uri("your-endpoint-here/v1/metrics");
            options.Protocol = OtlpExportProtocol.HttpProtobuf;
        }));

builder.Logging.AddOpenTelemetry(logging => {
    // The rest of your setup code goes here
    logging.AddOtlpExporter(options =>
    {
        options.Endpoint = new Uri("your-endpoint-here/v1/logs");
        options.Protocol = OtlpExportProtocol.HttpProtobuf;
    });
});

Non-ASP.NET Core

Configure the exporter when creating a TracerProvider, MeterProvider or LoggerFactory:

var tracerProvider = Sdk.CreateTracerProviderBuilder()
    // Other setup code, like setting a resource goes here too
    .AddOtlpExporter(options =>
    {
        options.Endpoint = new Uri("your-endpoint-here/v1/traces");
        options.Protocol = OtlpExportProtocol.HttpProtobuf;
    })
    .Build();

var meterProvider = Sdk.CreateMeterProviderBuilder()
    // Other setup code, like setting a resource goes here too
    .AddOtlpExporter(options =>
    {
        options.Endpoint = new Uri("your-endpoint-here/v1/metrics");
        options.Protocol = OtlpExportProtocol.HttpProtobuf;
    })
    .Build();

var loggerFactory = LoggerFactory.Create(builder =>
{
    builder.AddOpenTelemetry(logging =>
    {
        logging.AddOtlpExporter(options =>
        {
            options.Endpoint = new Uri("your-endpoint-here/v1/logs");
            options.Protocol = OtlpExportProtocol.HttpProtobuf;
        })
    });
});

Use environment variables to set values like headers and an endpoint URL for production.

Console

Dependencies

The console exporter is useful for development and debugging tasks, and is the simplest to set up. Start by installing the OpenTelemetry.Exporter.Console package as a dependency for your project:

dotnet add package OpenTelemetry.Exporter.Console

If you're using ASP.NET Core install the OpenTelemetry.Extensions.Hosting package as well:

dotnet add package OpenTelemetry.Extensions.Hosting

Usage {#console-usage}

ASP.NET Core {#console-usage-asp-net-core}

Configure the exporter in your ASP.NET Core services:

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenTelemetry()
    .WithTracing(tracing => tracing
        // The rest of your setup code goes here
        .AddConsoleExporter()
    )
    .WithMetrics(metrics => metrics
        // The rest of your setup code goes here
        .AddConsoleExporter()
    );

builder.Logging.AddOpenTelemetry(logging => {
    // The rest of your setup code goes here
    logging.AddConsoleExporter();
});

Non-ASP.NET Core {#console-usage-non-asp-net-core}

Configure the exporter when creating a TracerProvider, MeterProvider or LoggerFactory:

var tracerProvider = Sdk.CreateTracerProviderBuilder()
    // The rest of your setup code goes here
    .AddConsoleExporter()
    .Build();

var meterProvider = Sdk.CreateMeterProviderBuilder()
    // The rest of your setup code goes here
    .AddConsoleExporter()
    .Build();

var loggerFactory = LoggerFactory.Create(builder =>
{
    builder.AddOpenTelemetry(logging =>
    {
        logging.AddConsoleExporter();
    });
});

{{% docs/languages/exporters/jaeger %}}

{{% include prometheus-setup.md %}}

Dependencies {#prometheus-dependencies}

Install the exporter package as a dependency for your application:

dotnet add package OpenTelemetry.Exporter.Prometheus.AspNetCore --version {{% version-from-registry exporter-dotnet-prometheus-aspnetcore %}}

If you're using ASP.NET Core install the OpenTelemetry.Extensions.Hosting package as well:

dotnet add package OpenTelemetry.Extensions.Hosting

Usage {#prometheus-usage}

ASP.NET Core {#prometheus-asp-net-core-usage}

Configure the exporter in your ASP.NET Core services:

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenTelemetry()
    .WithMetrics(metrics => metrics.AddPrometheusExporter());

You'll then need to add the endpoint so that Prometheus can scrape your site. You can do this using the IAppBuilder extension like this:

var builder = WebApplication.CreateBuilder(args);

// .. Setup

var app = builder.Build();

app.UseOpenTelemetryPrometheusScrapingEndpoint();

await app.RunAsync();

Non-ASP.NET Core {#prometheus-non-asp-net-core-usage}

{{% alert color="warning" title="Warning" %}}

This component is intended for dev inner-loop, there is no plan to make it production ready. Production environments should use OpenTelemetry.Exporter.Prometheus.AspNetCore, or a combination of OpenTelemetry.Exporter.OpenTelemetryProtocol and OpenTelemetry Collector.

{{% /alert %}}

For applications not using ASP.NET Core, you can use the HttpListener version which is available in a different package:

dotnet add package OpenTelemetry.Exporter.Prometheus.HttpListener --version {{% version-from-registry exporter-dotnet-prometheus-httplistener %}}

Then this is setup directly on the MeterProviderBuilder:

var meterProvider = Sdk.CreateMeterProviderBuilder()
    .AddMeter(MyMeter.Name)
    .AddPrometheusHttpListener(
        options => options.UriPrefixes = new string[] { "http://localhost:9464/" })
    .Build();

Finally, register the Prometheus scraping middleware using the UseOpenTelemetryPrometheusScrapingEndpoint extension method on IApplicationBuilder :

var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();
app.UseOpenTelemetryPrometheusScrapingEndpoint();

Further details on configuring the Prometheus exporter can be found here.

{{% include zipkin-setup.md %}}

Dependencies {#zipkin-dependencies}

To send your trace data to Zipkin, install the exporter package as a dependency for your application:

dotnet add package OpenTelemetry.Exporter.Zipkin

If you're using ASP.NET Core install the OpenTelemetry.Extensions.Hosting package as well:

dotnet add package OpenTelemetry.Extensions.Hosting

Usage {#zipkin-usage}

ASP.NET Core {#zipkin-asp-net-core-usage}

Configure the exporter in your ASP.NET Core services:

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenTelemetry()
    .WithTracing(tracing => tracing
        // The rest of your setup code goes here
        .AddZipkinExporter(options =>
        {
            options.Endpoint = new Uri("your-zipkin-uri-here");
        }));

Non-ASP.NET Core {#zipkin-non-asp-net-core-usage}

Configure the exporter when creating a tracer provider:

var tracerProvider = Sdk.CreateTracerProviderBuilder()
    // The rest of your setup code goes here
    .AddZipkinExporter(options =>
    {
        options.Endpoint = new Uri("your-zipkin-uri-here");
    })
    .Build();