How can I integrate logging into my application framework?

How can I integrate logging into my application framework?

Integrating logging typically involves using a logging library compatible with your framework. Which framework are you using?

I'm using Express.js for my Node.js application.

For Express.js, you can use the 'morgan' middleware for HTTP request logging and 'winston' for general logging. Would you like a code example?

Yes, please provide a code example for both.

Sure! Here's a basic setup:

const express = require('express');
const morgan = require('morgan');
const winston = require('winston');

const app = express();

// Setup morgan for logging HTTP requests
app.use(morgan('combined'));

// Setup winston for general logging
const logger = winston.createLogger({
  level: 'info',
  format: winston.format.json(),
  transports: [
    new winston.transports.File({ filename: 'combined.log' })
  ],
});

app.get('/', (req, res) => {
  logger.info('Hello world endpoint was hit');
  res.send('Hello World!');
});

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

This will log HTTP requests and general application logs.