58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
const { DiagConsoleLogger, DiagLogLevel, diag, metrics } = require('@opentelemetry/api');
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const { OTLPMetricExporter } = require('@opentelemetry/exporter-metrics-otlp-http');
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const { MeterProvider, PeriodicExportingMetricReader } = require('@opentelemetry/sdk-metrics');
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// Optional and only needed to see the internal diagnostic logging (during development)
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diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.DEBUG);
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let interval;
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let meter;
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function stopMetrics() {
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console.log('STOPPING METRICS');
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clearInterval(interval);
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metrics.getMeterProvider().shutdown()
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.then(() => metrics.disable());
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}
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function startMetrics() {
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console.log('STARTING METRICS');
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const meterProvider = new MeterProvider({
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readers: [
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new PeriodicExportingMetricReader({
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exporter: new OTLPMetricExporter(),
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exportIntervalMillis: 1000
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}),
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],
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});
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metrics.setGlobalMeterProvider(meterProvider);
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meter = meterProvider.getMeter('example-exporter-collector')
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const requestCounter = meter.createCounter('requests', {
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description: 'Example of a Counter',
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});
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const upDownCounter = meter.createUpDownCounter('test_up_down_counter', {
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description: 'Example of a UpDownCounter',
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});
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const attributes = { environment: 'staging' };
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interval = setInterval(() => {
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requestCounter.add(1, attributes);
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upDownCounter.add(Math.random() > 0.5 ? 1 : -1, attributes);
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}, 1000);
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}
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const addClickEvents = () => {
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const startBtn = document.getElementById('startBtn');
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const stopBtn = document.getElementById('stopBtn');
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startBtn.addEventListener('click', startMetrics);
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stopBtn.addEventListener('click', stopMetrics);
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};
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window.addEventListener('load', addClickEvents);
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