How can I secure my Express.js applications?

How can I secure my Express.js applications?

To secure your Express.js applications, you can implement several best practices such as using HTTPS, validating user input, and setting security headers.

What are some specific security headers I should use?

You should consider using headers like Content Security Policy (CSP), X-Content-Type-Options, X-Frame-Options, and Strict-Transport-Security.

How can I prevent SQL injection in my app?

To prevent SQL injection, always use parameterized queries or ORM libraries that handle query sanitization for you.

Are there any middleware I should use for security?

Yes, you can use middleware like Helmet to set various HTTP headers for security and express-rate-limit to prevent brute-force attacks.