expressjsHow do I configure logging in Express.js?

Express.js provides a simple and easy way to configure logging. Here is an example of how to configure logging in Express.js:

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

const app = express();

// Configure logging
app.use(logger('dev'));

// Other Express.js settings

app.listen(3000);

This will enable logging with the morgan middleware. The logger middleware is configured with the dev format, which is a predefined format to log requests in the Apache combined log format.

The logger middleware takes a format string as its first argument. This string can have the following parts:

• :method - HTTP request method
• :url - Requested URL
• :status - HTTP response status code
• :response-time - Time in milliseconds to process the request
• :date - Date of the request
• :referrer - Referrer URL
• :user-agent - Browser user agent

For more information, see the Express.js documentation.

Edit this code on GitHub