Send OpenTelemetry data to Axiom

exporters:
  otlphttp:
    compression: gzip
    endpoint: https://AXIOM_DOMAIN
    headers:
      authorization: Bearer API_TOKEN
      x-axiom-dataset: DATASET_NAME

service:
  pipelines:
    traces:
      receivers:
        - otlp
      processors:
        - memory_limiter
        - batch
      exporters:
        - otlphttp

package main

import (
   "context" // For managing request-scoped values, cancellation signals, and deadlines.
   "crypto/tls" // For configuring TLS options, like certificates.

   // OpenTelemetry imports for setting up tracing and exporting telemetry data.
   "go.opentelemetry.io/otel" // Core OpenTelemetry APIs for managing tracers.
   "go.opentelemetry.io/otel/attribute" // For creating and managing trace attributes.
   "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp" // HTTP trace exporter for OpenTelemetry Protocol (OTLP).
   "go.opentelemetry.io/otel/propagation" // For managing context propagation formats.
   "go.opentelemetry.io/otel/sdk/resource" // For defining resources that describe an entity producing telemetry.
   "go.opentelemetry.io/otel/sdk/trace" // For configuring tracing, like sampling and processors.
   semconv "go.opentelemetry.io/otel/semconv/v1.24.0" // Semantic conventions for resource attributes.
)

const (
   serviceName           = "axiom-go-otel" // Name of the service for tracing.
   serviceVersion        = "0.1.0" // Version of the service.
   otlpEndpoint          = "AXIOM_DOMAIN" // OTLP collector endpoint.
   bearerToken           = "Bearer API_TOKEN" // Authorization token.
   deploymentEnvironment = "production" // Deployment environment.
)

func SetupTracer() (func(context.Context) error, error) {
   ctx := context.Background()
   return InstallExportPipeline(ctx) // Setup and return the export pipeline for telemetry data.
}

func Resource() *resource.Resource {
   // Defines resource with service name, version, and environment.
   return resource.NewWithAttributes(
       semconv.SchemaURL,
       semconv.ServiceNameKey.String(serviceName),
       semconv.ServiceVersionKey.String(serviceVersion),
       attribute.String("environment", deploymentEnvironment),
   )
}

func InstallExportPipeline(ctx context.Context) (func(context.Context) error, error) {
   // Sets up OTLP HTTP exporter with endpoint, headers, and TLS config.
   exporter, err := otlptracehttp.New(ctx,
       otlptracehttp.WithEndpoint(otlpEndpoint),
       otlptracehttp.WithHeaders(map[string]string{
           "Authorization":   bearerToken,
           "X-AXIOM-DATASET": "DATASET_NAME",
       }),
       otlptracehttp.WithTLSClientConfig(&tls.Config{}),
   )
   if err != nil {
       return nil, err
   }

   // Configures the tracer provider with the exporter and resource.
   tracerProvider := trace.NewTracerProvider(
       trace.WithBatcher(exporter),
       trace.WithResource(Resource()),
   )
   otel.SetTracerProvider(tracerProvider)

   // Sets global propagator to W3C Trace Context and Baggage.
   otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(
       propagation.TraceContext{},
       propagation.Baggage{},
   ))

   return tracerProvider.Shutdown, nil // Returns a function to shut down the tracer provider.
}

require 'opentelemetry/sdk'
require 'opentelemetry/exporter/otlp'
require 'opentelemetry/instrumentation/all'

OpenTelemetry::SDK.configure do |c|
  c.service_name = 'ruby-traces' # Set your service name

  c.use_all # or specify individual instrumentation you need

  c.add_span_processor(
    OpenTelemetry::SDK::Trace::Export::BatchSpanProcessor.new(
      OpenTelemetry::Exporter::OTLP::Exporter.new(
        endpoint: 'https://AXIOM_DOMAIN/v1/traces',
        headers: {
          'Authorization' => 'Bearer API_TOKEN',
          'X-AXIOM-DATASET' => 'DATASET_NAME'
        }
      )
    )
  )
end

package com.example;

import io.opentelemetry.api.OpenTelemetry;
import io.opentelemetry.api.common.Attributes;
import io.opentelemetry.api.common.AttributeKey;
import io.opentelemetry.exporter.otlp.http.trace.OtlpHttpSpanExporter;
import io.opentelemetry.sdk.OpenTelemetrySdk;
import io.opentelemetry.sdk.resources.Resource;
import io.opentelemetry.sdk.trace.SdkTracerProvider;
import io.opentelemetry.sdk.trace.export.BatchSpanProcessor;

import java.util.concurrent.TimeUnit;

public class OtelConfiguration {
    // OpenTelemetry configuration
    private static final String SERVICE_NAME = "SERVICE_NAME";
    private static final String SERVICE_VERSION = "SERVICE_VERSION";
    private static final String OTLP_ENDPOINT = "https://AXIOM_DOMAIN/v1/traces";
    private static final String BEARER_TOKEN = "Bearer API_TOKEN";
    private static final String AXIOM_DATASET = "DATASET_NAME";

    public static OpenTelemetry initializeOpenTelemetry() {
        // Create a Resource with service name and version
        Resource resource = Resource.getDefault()
                .merge(Resource.create(Attributes.of(
                        AttributeKey.stringKey("service.name"), SERVICE_NAME,
                        AttributeKey.stringKey("service.version"), SERVICE_VERSION
                )));

        // Create an OTLP/HTTP span exporter
        OtlpHttpSpanExporter spanExporter = OtlpHttpSpanExporter.builder()
                .setEndpoint(OTLP_ENDPOINT)
                .addHeader("Authorization", BEARER_TOKEN)
                .addHeader("X-Axiom-Dataset", AXIOM_DATASET)
                .build();

        // Create a BatchSpanProcessor with the OTLP/HTTP exporter
        SdkTracerProvider sdkTracerProvider = SdkTracerProvider.builder()
                .addSpanProcessor(BatchSpanProcessor.builder(spanExporter)
                        .setScheduleDelay(100, TimeUnit.MILLISECONDS)
                        .build())
                .setResource(resource)
                .build();

        // Build and register the OpenTelemetry SDK
        OpenTelemetrySdk openTelemetry = OpenTelemetrySdk.builder()
                .setTracerProvider(sdkTracerProvider)
                .buildAndRegisterGlobal();

        // Add a shutdown hook to properly close the SDK
        Runtime.getRuntime().addShutdownHook(new Thread(sdkTracerProvider::close));

        return openTelemetry;
    }
}

using OpenTelemetry;
using OpenTelemetry.Resources;
using OpenTelemetry.Trace;
using System;
using System.Diagnostics;
using System.Reflection;

// Class to configure OpenTelemetry tracing
public static class TracingConfiguration
{
    // Declares an ActivitySource for creating tracing activities
    private static readonly ActivitySource ActivitySource = new("MyCustomActivitySource");

    // Configures OpenTelemetry with custom settings and instrumentation
    public static void ConfigureOpenTelemetry()
    {
        // Retrieve the service name and version from the executing assembly metadata
        var serviceName = Assembly.GetExecutingAssembly().GetName().Name ?? "UnknownService";
        var serviceVersion = Assembly.GetExecutingAssembly().GetName().Version?.ToString() ?? "UnknownVersion";

        // Setting up the tracer provider with various configurations
        Sdk.CreateTracerProviderBuilder()
            .SetResourceBuilder(
                // Set resource attributes including service name and version
                ResourceBuilder.CreateDefault().AddService(serviceName, serviceVersion: serviceVersion)
                .AddAttributes(new[] { new KeyValuePair<string, object>("environment", "development") }) // Additional attributes
                .AddTelemetrySdk() // Add telemetry SDK information to the traces
                .AddEnvironmentVariableDetector()) // Detect resource attributes from environment variables
            .AddSource(ActivitySource.Name) // Add the ActivitySource defined above
            .AddAspNetCoreInstrumentation() // Add automatic instrumentation for ASP.NET Core
            .AddHttpClientInstrumentation() // Add automatic instrumentation for HttpClient requests
            .AddOtlpExporter(options => // Configure the OTLP exporter
            {
                options.Endpoint = new Uri("https://AXIOM_DOMAIN/v1/traces"); // Set the endpoint for the exporter
                options.Protocol = OpenTelemetry.Exporter.OtlpExportProtocol.HttpProtobuf; // Set the protocol
                options.Headers = "Authorization=Bearer API_TOKEN, X-Axiom-Dataset=DATASET_NAME"; // Update API token and dataset
            })
            .Build(); // Build the tracer provider
    }

    // Method to start a new tracing activity with an optional activity kind
    public static Activity? StartActivity(string activityName, ActivityKind kind = ActivityKind.Internal)
    {
        // Starts and returns a new activity if sampling allows it, otherwise returns null
        return ActivitySource.StartActivity(activityName, kind);
    }
}

from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import BatchSpanProcessor
from opentelemetry.sdk.resources import Resource, SERVICE_NAME
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter

# Define the service name resource for the tracer.
resource = Resource(attributes={
    SERVICE_NAME: "NAME_OF_SERVICE" # Replace `NAME_OF_SERVICE` with the name of the service you want to trace.
})

# Create a TracerProvider with the defined resource for creating tracers.
provider = TracerProvider(resource=resource)

# Configure the OTLP/HTTP Span Exporter with Axiom headers and endpoint. Replace `API_TOKEN` with your Axiom API key, and replace `DATASET_NAME` with the name of the Axiom dataset where you want to send data.
otlp_exporter = OTLPSpanExporter(
    endpoint="https://AXIOM_DOMAIN/v1/traces",
    headers={
        "Authorization": "Bearer API_TOKEN",
        "X-Axiom-Dataset": "DATASET_NAME"
    }
)

# Create a BatchSpanProcessor with the OTLP exporter to batch and send trace spans.
processor = BatchSpanProcessor(otlp_exporter)
provider.add_span_processor(processor)

# Set the TracerProvider as the global tracer provider.
trace.set_tracer_provider(provider)

# Define a tracer for external use in different parts of the app.
service1_tracer = trace.get_tracer("service1")

const opentelemetry = require('@opentelemetry/sdk-node');
const { getNodeAutoInstrumentations } = require('@opentelemetry/auto-instrumentations-node');
const { OTLPTraceExporter } = require('@opentelemetry/exporter-trace-otlp-proto');
const { BatchSpanProcessor } = require('@opentelemetry/sdk-trace-base');
const { Resource } = require('@opentelemetry/resources');
const { SemanticResourceAttributes } = require('@opentelemetry/semantic-conventions');

// Initialize OTLP trace exporter with the URL and headers for the Axiom API
const traceExporter = new OTLPTraceExporter({
  url: 'https://AXIOM_DOMAIN/v1/traces', // Axiom API endpoint for trace data
  headers: {
    'Authorization': 'Bearer API_TOKEN', // Replace API_TOKEN with your actual API token
    'X-Axiom-Dataset': 'DATASET_NAME' // Replace DATASET_NAME with your dataset
  },
});

// Define the resource attributes, in this case, setting the service name for the traces
const resource = new Resource({
  [SemanticResourceAttributes.SERVICE_NAME]: 'node traces', // Name for the tracing service
});

// Create a NodeSDK instance with the configured span processor, resource, and auto-instrumentations
const sdk = new opentelemetry.NodeSDK({
  spanProcessor: new BatchSpanProcessor(traceExporter), // Use BatchSpanProcessor for batching and sending traces
  resource: resource, // Attach the defined resource to provide additional context
  instrumentations: [getNodeAutoInstrumentations()], // Automatically instrument common Node.js modules
});

// Start the OpenTelemetry SDK
sdk.start();

// index.ts
import { trace } from '@opentelemetry/api';
import { instrument, ResolveConfigFn } from '@microlabs/otel-cf-workers';

export interface Env {
  AXIOM_API_TOKEN: string,
  AXIOM_DATASET: string,
  AXIOM_DOMAIN: string
}

const handler = {
  async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
    await fetch('https://cloudflare.com');
    const greeting = "Welcome to Axiom Cloudflare instrumentation";
    trace.getActiveSpan()?.setAttribute('greeting', greeting);
    ctx.waitUntil(fetch('https://workers.dev'));
    return new Response(`${greeting}!`);
  },
};

const config: ResolveConfigFn = (env: Env, _trigger) => {
  return {
    exporter: {
      url: `https://${env.AXIOM_DOMAIN}/v1/traces`,
      headers: {
        'Authorization': `Bearer ${env.AXIOM_API_TOKEN}`,
        'X-Axiom-Dataset': `${env.AXIOM_DATASET}`
      },
    },
    service: { name: 'axiom-cloudflare-workers' },
  };
};

export default instrument(handler, config);