Node.js Log Monitoring with LogMonitor

>_ why node.js apps need log monitoring

Node.js servers handle thousands of concurrent requests, and a single uncaught exception can cascade into downtime. Traditional log files grow quickly and are painful to search. LogMonitor streams every log line to a Live Console so you can spot errors the moment they happen, not hours later when a user complains.

>_ how logmonitor works with node.js

Install the logmonitor-js SDK and call logmonitor.init() at the top of your entry file. The SDK auto-patches console.log, console.info, console.warn, console.error, and console.debug to stream logs to LogMonitor in real time. It works with Express, Fastify, Koa, Hapi, or any Node.js framework with zero additional configuration. Logs are only sent in production (when process.env.NODE_ENV === 'production').

>_ quick start

import { logmonitor } from 'logmonitor-js';

import express from 'express';

logmonitor.init({ apiKey: 'your-api-key' });

const app = express();

app.get('/api/users', (req, res) => {

  console.log('Fetching users', { ip: req.ip });

  res.json({ users: [] });

});

app.use((err, req, res, next) => {

  console.error('Unhandled error', { message: err.message, stack: err.stack });

  res.status(500).json({ error: 'Internal server error' });

});

app.listen(3000);

>_ what you can monitor

• $HTTP request and response logs
• $Unhandled exceptions and promise rejections
• $Database query errors and slow queries
• $External API call failures
• $Memory usage and event loop lag warnings
• $Authentication and authorization failures