Learn how to protect routes and secure API endpoints in a Node.js/Express application with authentication. Expand on previous knowledge by adding pages accessible only when logged in and creating a secured API called from the web app. Follow along to create a second route in the web app, implement EJS templating, secure routes with Auth0, develop a simple Express-based API with public and private endpoints, integrate API responses using Axios, and configure the web app to request access tokens. Gain practical insights into implementing authentication and authorization in your Node.js projects, enhancing the security of your web applications and APIs.