library

Library Instrumentation for Helidon

Provides OpenTelemetry instrumentation for Helidon.

Quickstart

Add these dependencies to your project

Replace OPENTELEMETRY_VERSION with the latest release.

For Maven, add to your pom.xml dependencies:

<dependencies>
  <dependency>
    <groupId>io.opentelemetry.instrumentation</groupId>
    <artifactId>opentelemetry-helidon-4.3</artifactId>
    <version>OPENTELEMETRY_VERSION</version>
  </dependency>
</dependencies>

For Gradle, add to your dependencies:

implementation("io.opentelemetry.instrumentation:opentelemetry-helidon-4.3:OPENTELEMETRY_VERSION")

Usage

The instrumentation library contains an HttpFeature that provides OpenTelemetry-based spans and context propagation.

import java.io.IOException;

import io.helidon.webserver.WebServer;
import io.helidon.webserver.http.HttpRouting;
import io.opentelemetry.api.OpenTelemetry;
import io.opentelemetry.instrumentation.helidon.v4_3.HelidonTelemetry;

public class Application {

  static void main(String args) throws IOException {

    OpenTelemetry openTelemetry = // ...
    WebServer.builder()
        .addRouting(
            HttpRouting.builder()
                .addFeature(HelidonTelemetry.create(openTelemetry))
                .get("/greet", (req, res) -> res.send("Hello World!")))
        .build();
  }
}