@opentelemetry/instrumentation-user-interaction

OpenTelemetry UserInteraction Instrumentation for web

This module provides automatic instrumentation for user interactions for Web applications.

This module can work either with zone-js or without it, with zone-js and ZoneContextManager it will fully support the async operations. Without zone-js it will still work but with limited support. If you use Angular or @opentelemetry/context-zone you will have zone-js included.

Installation

npm install --save @opentelemetry/instrumentation-user-interaction

Usage

Initialize

import { context, propagation, trace } from '@opentelemetry/api';
import { CompositePropagator, W3CBaggagePropagator, W3CTraceContextPropagator } from '@opentelemetry/core';
import { ConsoleSpanExporter, SimpleSpanProcessor, TracerProvider } from '@opentelemetry/sdk-trace';
import { UserInteractionInstrumentation } from '@opentelemetry/instrumentation-user-interaction';
import { registerInstrumentations } from '@opentelemetry/instrumentation';
import { ZoneContextManager } from '@opentelemetry/context-zone';
// or if you already have zone.js
// import { ZoneContextManager } from '@opentelemetry/context-zone-peer-dep';

const tracerProvider = new TracerProvider({
  spanProcessors: [
    new SimpleSpanProcessor({ exporter: new ConsoleSpanExporter() }),
  ],
});
trace.setGlobalTracerProvider(tracerProvider);
context.setGlobalContextManager(new ZoneContextManager().enable());
const propagator = new CompositePropagator({
  propagators: [
    new W3CTraceContextPropagator(),
    new W3CBaggagePropagator(),
  ],
});
propagation.setGlobalPropagator(propagator);

registerInstrumentations({
  instrumentations: [
    new UserInteractionInstrumentation(),
  ],
});

// and some test
const btn1 = document.createElement('button');
btn1.append(document.createTextNode('btn1'));
btn1.addEventListener('click', () => {
  console.log('clicked');
});
document.querySelector('body').append(btn1);

const btn2 = document.createElement('button');
btn2.append(document.createTextNode('btn2'));
btn2.addEventListener('click', () => {
  getData('https://httpbin.org/get').then(() => {
    getData('https://httpbin.org/get').then(() => {
      console.log('data downloaded 2');
    });
    getData('https://httpbin.org/get').then(() => {
      console.log('data downloaded 3');
    });
    console.log('data downloaded 1');
  });
});
document.querySelector('body').append(btn2);

function getData(url) {
  return new Promise(async (resolve) => {
    const req = new XMLHttpRequest();
    req.open('GET', url, true);
    req.setRequestHeader('Content-Type', 'application/json');
    req.setRequestHeader('Accept', 'application/json');
    req.send();
    req.onload = function () {
      resolve();
    };
  });
}

// now click on buttons

Send spans for different events

By default, only click events are automatically instrumented. To automatically instrument other events, specify the events that should be captured for telemetry. Most HTMLElement interface events are supported.

import { UserInteractionInstrumentation } from '@opentelemetry/instrumentation-user-interaction';
import { registerInstrumentations } from '@opentelemetry/instrumentation';

// ...general opentelemetry configuration

registerInstrumentations({
  instrumentations: [
    new UserInteractionInstrumentation({
      eventNames: ['submit', 'click', 'keypress'],
    }),
  ],
});

Prevent spans from recording

import { UserInteractionInstrumentation } from '@opentelemetry/instrumentation-user-interaction';
import { registerInstrumentations } from '@opentelemetry/instrumentation';

// ...general opentelemetry configuration

registerInstrumentations({
  instrumentations: [
    new UserInteractionInstrumentation({
      shouldPreventSpanCreation: () => {
        return true;
      },
    }),
  ],
});

Add extra attributes to spans

To attach extra attributes to user interaction spans, provide a callback function to the shouldPreventSpanCreation option:

import { UserInteractionInstrumentation } from '@opentelemetry/instrumentation-user-interaction';
import { registerInstrumentations } from '@opentelemetry/instrumentation';

// ...general opentelemetry configuration

registerInstrumentations({
  instrumentations: [
    new UserInteractionInstrumentation({
      shouldPreventSpanCreation: (event, element, span) => {
        span.setAttribute('target.id', element.id);
        // etc..
      }
    }),
  ],
});

Example Screenshots

Semantic Conventions

This package does not currently generate any attributes from semantic conventions.

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.