sample.js

'use strict';

const { diag, DiagConsoleLogger, DiagLogLevel } = require('@opentelemetry/api');
const { Resource } = require('@opentelemetry/resources');
const { MeterProvider } = require('@opentelemetry/sdk-metrics');
const { configureDynatraceMetricExport } = require('..');

// optional: set up logging for OpenTelemetry
diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.ALL)

// Configure a MeterProvider
const provider = new MeterProvider({
  resource: new Resource({
    'service.name': 'opentelemetry-metrics-sample-dynatrace'
  })
});

const reader = configureDynatraceMetricExport(
  // exporter configuration
  {
    prefix: 'sample', // optional
    defaultDimensions: [ // optional
      { key: 'default-dim', value: 'default-dim-value' },
    ],
    // If no OneAgent is available locally, export directly to the Dynatrace server:
    // url: 'https://myenv123.live.dynatrace.com/api/v2/metrics/ingest',
    // apiToken: '<load API token from secure location such as env or config file>'
  },
  // metric reader configuration
  {
    exportIntervalMillis: 5000
  }
);

provider.addMetricReader(reader);

const meter = provider.getMeter('opentelemetry-metrics-sample-dynatrace');

// Your SDK should be set up correctly now. You can create instruments...
const requestCounter = meter.createCounter('requests', {
  description: 'Example of a Counter'
});

const upDownCounter = meter.createUpDownCounter('test_up_down_counter', {
  description: 'Example of a UpDownCounter'
});

// ...set up attributes...
const attributes = {
  pid: process.pid.toString(),
  environment: 'staging'
};

// ... and start recording metrics:
setInterval(() => {
  requestCounter.add(Math.round(Math.random() * 1000), attributes);
  upDownCounter.add(Math.random() > 0.5 ? 1 : -1, attributes);
}, 1000);