opentelemetry-js/packages/opentelemetry-core

OpenTelemetry Core

This package provides default implementations of the OpenTelemetry API for trace and metrics. It's intended for use both on the server and in the browser.

Built-in Implementations

• OpenTelemetry Core
  • Built-in Implementations
    • Built-in Propagators
      • W3CTraceContextPropagator Propagator
      • Composite Propagator
      • Baggage Propagator
  • Useful links
  • License

Built-in Propagators

W3CTraceContextPropagator Propagator

OpenTelemetry provides a text-based approach to propagate context to remote services using the W3C Trace Context HTTP headers.

const api = require("@opentelemetry/api");
const { W3CTraceContextPropagator } = require("@opentelemetry/core");

/* Set Global Propagator */
api.propagation.setGlobalPropagator(new W3CTraceContextPropagator());

Composite Propagator

Combines multiple propagators into a single propagator.

This is used as a default Propagator

const api = require("@opentelemetry/api");
const { CompositePropagator } = require("@opentelemetry/core");

/* Set Global Propagator */
api.propagation.setGlobalPropagator(new CompositePropagator());

Baggage Propagator

Provides a text-based approach to propagate baggage to remote services using the OpenTelemetry Baggage Propagation HTTP headers.

const api = require("@opentelemetry/api");
const { W3CBaggagePropagator } = require("@opentelemetry/core");

/* Set Global Propagator */
api.propagation.setGlobalPropagator(new W3CBaggagePropagator());

Useful links

• For more information on OpenTelemetry, visit: https://opentelemetry.io/
• For more about OpenTelemetry JavaScript: https://github.com/open-telemetry/opentelemetry-js
• For help or feedback on this project, join us in GitHub Discussions

License

Apache 2.0 - See LICENSE for more information.