OpenTelemetry

opentelemetry.js

/* Front End */
import { CollectorTraceExporter } from '@opentelemetry/exporter-collector';
import { DocumentLoad } from '@opentelemetry/plugin-document-load';
import { XMLHttpRequestPlugin } from '@opentelemetry/plugin-xml-http-request';
import { BatchSpanProcessor, ConsoleSpanExporter } from '@opentelemetry/tracing';
import { WebTracerProvider } from '@opentelemetry/web';

const tracerProvider = new WebTracerProvider({
  plugins: [new DocumentLoad(), new XMLHttpRequestPlugin()],
});

tracerProvider.addSpanProcessor(
  new BatchSpanProcessor(
    new CollectorTraceExporter({
      serviceName: 'my-trace-service',
    })
  )
);

tracerProvider.register();


/* Back End */
import { CollectorTraceExporter } from '@opentelemetry/exporter-collector';
import { NodeTracerProvider } from '@opentelemetry/node';
import { BatchSpanProcessor, ConsoleSpanExporter } from '@opentelemetry/tracing';

const tracerProvider = new NodeTracerProvider({
  plugins: {
    dns: {
      enabled: true,
      path: '@opentelemetry/plugin-dns',
    },
    express: {
      enabled: true,
      path: '@opentelemetry/plugin-express',
    },
    http: {
      enabled: true,
      path: '@opentelemetry/plugin-http',
    },
    ioredis: {
      enabled: true,
      path: '@opentelemetry/plugin-ioredis',
    },
    pg: {
      enabled: true,
      path: '@opentelemetry/plugin-pg',
    },
  },
});

tracerProvider.addSpanProcessor(
  new BatchSpanProcessor(
    new CollectorTraceExporter({
      serviceName: 'my-trace-service',
    })
  )
);

tracerProvider.register();


/* New Trace */
import opentelemetry from '@opentelemetry/api';

const tracer = opentelemetry.trace.getTracer('my-tracer');
const span = tracer.startSpan('my-span');
span.setAttribute(key, val);
span.addEvent('foo');
span.end();


/* New Metric */
import { CollectorMetricExporter } from '@opentelemetry/exporter-collector';
import { MeterProvider } from '@opentelemetry/metrics';

const metricExporter = new CollectorMetricExporter({
  serviceName: 'my-metric-service',
});
const metricProvider = new MeterProvider({
  exporter: metricExporter,
  interval: 1000, // ms
});
const meter = metricProvider.getMeter('my-meter');
const counter = meter.createCounter('my-counter');
const labels = { foo: 'bar' }
counter.bind(labels).add(1);