@uphold/opentelemetry-baggage-span-processor

Package that sets all baggage entries as span attributes.

Installation

npm install @uphold/opentelemetry-baggage-span-processor

Why?

Finding spans or traces that match contextual data stored in baggage is not an out-of-the-box feature in OpenTelemetry. This packages sets all baggage entries as span attributes so that you can search any span based on data stored in the baggage, like a user.id or request.id.

Usage

Add BaggageSpanProcessor as a spanProcessor to the tracerProvider. Here's how it looks if you are using the NodeSDK:

import { BaggageSpanProcessor } from '@uphold/opentelemetry-baggage-span-processor';
import { NodeTracerProvider } from '@opentelemetry/sdk-trace-node';
import { ProxyTracerProvider, trace } from '@opentelemetry/api';

const sdk = new NodeSDK({});

sdk.start();

const proxyTracerProvider = trace.getTracerProvider() as ProxyTracerProvider;
const tracerProvider = proxyTracerProvider.getDelegate() as NodeTracerProvider;

tracerProvider.addSpanProcessor(new BaggageSpanProcessor());

Tests

npm test

License

Licensed under MIT.