How do I configure Helmet in my Node.js application?

How do I configure Helmet in my Node.js application?

To configure Helmet, first install it using npm: npm install helmet. Then, require it in your app and use it as middleware.

Can you show me a basic example of how to use it?

Sure! Here's a simple example:

const express = require('express');
const helmet = require('helmet');

const app = express();

app.use(helmet()); // Use Helmet to secure your app

app.get('/', (req, res) => {
  res.send('Hello, secure world!');
});

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

What are some specific security headers that Helmet sets?

Helmet sets various security headers, including:

• Content Security Policy (CSP)
• X-DNS-Prefetch-Control
• X-Frame-Options
• X-Content-Type-Options
• Strict-Transport-Security These help protect against common vulnerabilities.

Is it safe to use Helmet with other middleware?

Yes, Helmet is designed to work well with other middleware. Just ensure you configure them properly to avoid conflicts.