This library will wrap the fetch API.
You need to provide your own fetch
implementation; it could for example come from window.fetch
(in the browser),
or node-fetch on Node.js.
const {Tracer} = require('zipkin');
const wrapFetch = require('zipkin-instrumentation-fetch');
const tracer = new Tracer({ctxImpl, recorder}); // configure your tracer properly here
const nameOfRemoteService = 'youtube';
const zipkinFetch = wrapFetch(fetch, {tracer, remoteServiceName: nameOfRemoteService});
// Your application code here
zipkinFetch('http://www.youtube.com/').then(res => res.json()).then(data => ...);