@pionerlabs/grpc-interceptors/zipkin-tracer.js

This library provides a way to instrument Node.js gRPC clients and servers with interceptors/middleware e.g. for Prometheus metrics, Zipkin tracing etc.

const { HttpLogger } = require('zipkin-transport-http');
const { Tracer, BatchRecorder, ExplicitContext } = require('zipkin');

module.exports = localServiceName => {
    let recorder;

    if (process.env.ZIPKIN_URL) {
        recorder = new BatchRecorder({
            logger: new HttpLogger({
                endpoint: process.env.ZIPKIN_URL,
            }),
        });
    } else {
        recorder = {
            record() {},
        };
    }

    return new Tracer({
        ctxImpl: new ExplicitContext(),
        recorder,
        localServiceName,
    });
};