What Is Middleware in Express JS - Node.js Tutorials for Beginners

Explore middleware in Express.js through this comprehensive Node.js tutorial for beginners. Learn about error handlers, custom loggers, built-in middleware, and third-party middleware implementation. Discover the concept of middleware, apply built-in middleware, create custom middleware, integrate third-party solutions, and develop a custom error handler. Understand the differences between app.use() and app.all(), and improve custom 404 route handling. Gain practical insights into Express.js middleware usage to enhance your web development skills.

Syllabus

Intro
Welcome
Intro and Setup
What is middleware?
Applying built-in middleware
Creating custom middleware
Adding third party middleware
Creating a custom error handler
app.use vs app.all
Improving the custom 404 route handler