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20 lines
541 B
JavaScript
20 lines
541 B
JavaScript
'use strict';
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const events = require('./events');
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exports.startMonitoring = (enable, eventBus) => {
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if (!enable) {
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return;
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}
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const client = require('prom-client');
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const requestDuration = new client.Summary('http_request_duration_milliseconds', 'App response time', ['path', 'method', 'status'], {
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percentiles: [0.1, 0.5, 0.9, 0.99],
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});
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eventBus.on(events.REQUEST_TIME, ({ path, method, time, statusCode }) => {
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requestDuration.labels(path, method, statusCode).observe(time);
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});
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};
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