OpenTelemetry Context Zone Peer Dependency
This module provides Zone Context Manager with a peer dependency for zone-js for Web applications.
If you use Angular you already have the zone-js and you should use this package.
If you don't have your own zone-js please use @opentelemetry/context-zone
Installation
Please note that due to an issue with zone.js
, the ZoneContextManager
does not work with JS code targeting ES2017+
.
In order to use the ZoneContextManager
, please transpile back to ES2015
.
npm install --save @opentelemetry/context-zone-peer-dep
Usage
import { context, trace } from '@opentelemetry/api';
import {
ConsoleSpanExporter,
SimpleSpanProcessor,
WebTracerProvider,
} from '@opentelemetry/sdk-trace-web';
import { ZoneContextManager } from '@opentelemetry/context-zone-peer-dep';
const providerWithZone = new WebTracerProvider();
providerWithZone.addSpanProcessor(new SimpleSpanProcessor(new ConsoleSpanExporter()));
providerWithZone.register({
contextManager: new ZoneContextManager()
});
const webTracerWithZone = providerWithZone.getTracer('default');
const span1 = webTracerWithZone.startSpan('foo1');
context.with(trace.setSpan(context.active(), span1, () => {
console.log('Current span is span1', trace.getSpan(context.active()) === span1);
setTimeout(() => {
const span2 = webTracerWithZone.startSpan('foo2');
console.log('Current span is span1', trace.getSpan(context.active()) === span1);
context.with(trace.setSpan(context.active(), span2, () => {
console.log('Current span is span2', trace.getSpan(context.active()) === span2);
setTimeout(() => {
console.log('Current span is span2', trace.getSpan(context.active()) === span2);
}, 500);
});
console.log('Current span is span2', trace.getSpan(context.active()) === span2);
}, 500);
console.log('Current span is span1', trace.getSpan(context.active()) === span1);
});
Useful links
License
Apache 2.0 - See LICENSE for more information.