What are the best practices for securing a Node.js application?

What are the best practices for securing a Node.js application?

To secure a Node.js application, you should follow best practices like validating user input, using HTTPS, and managing dependencies carefully.

Can you explain why input validation is important?

Input validation is crucial because it helps prevent attacks like SQL injection and cross-site scripting (XSS) by ensuring that only properly formatted data is processed.

What about using HTTPS? Why is that necessary?

Using HTTPS encrypts data transmitted between the client and server, protecting sensitive information from eavesdroppers and man-in-the-middle attacks.

How can I manage dependencies securely?

You can manage dependencies securely by regularly updating them, using tools like npm audit to check for vulnerabilities, and avoiding unnecessary packages.