Node.js API Masterclass with Express and MongoDB - Intro to Middleware

The video tutorial introduces middleware in Express and Mongoose, explaining its role in the request-response cycle. It demonstrates creating a simple logging middleware, integrating it with routes, and accessing request variables. The tutorial also covers refactoring middleware code for better organization and introduces Morgan, a third-party logging tool, for enhanced logging in development environments.

How does Mongoose relate to middleware?

What is middleware in the context of Express?

Describe how to create a simple logging middleware.

What are the three parameters that middleware functions take in?

What is the significance of setting a variable on the request object?

Explain the purpose of the 'next' function in middleware.

What is the purpose of the 'app.use' method in Express?

How can you access a variable set in middleware within a route?

What steps are involved in creating a custom middleware file?

What is Morgan and how does it differ from custom middleware?