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const monitoringOptions: MonitoringOptions = { port: 3001, enableHttpMetrics: true, enableProcessMetrics: true, customMetrics: true, };

const monitoringService = new MonitoringService(monitoringOptions); monitoringService.attachHttpMetrics(app);

// usage in app.js or app.ts file -->

import MonitoringService, { MonitoringOptions } from 'node-monitoring-package'; import express from 'express';

const app = express();

const monitoringOptions: MonitoringOptions = { port: 3001, enableHttpMetrics: true, enableProcessMetrics: true, customMetrics: [ { type: 'counter', name: 'custom_request_total', help: 'Total number of custom requests', labelNames: ['method', 'endpoint'] }, { type: 'gauge', name: 'custom_memory_usage_bytes', help: 'Custom memory usage gauge', labelNames: ['type'] } ] };

const monitoringService = new MonitoringService(monitoringOptions); monitoringService.attachHttpMetrics(app);

app.get('/custom', (req, res) => { // Example usage of custom metric const customCounter = client.getSingleMetric('custom_request_total') as client.Counter; customCounter.inc({ method: req.method, endpoint: '/custom' });

res.send('Custom metrics route');

});

app.listen(3000, () => { console.log('App running on port 3000'); });