Core Architecture | Mastering Production-Ready Express.js

📄️ Your First Route & Controller

We have a clean directory structure and a separated app.js / server.js. However, our src/app.js file still has a route handler directly inside it:

In a typical "unopinionated" Express app, you often see code like this in every controller:

Now that our foundation is built, we will implement the first major pillar of our architecture: The Service Layer.

We have separated HTTP (Controller) from Logic (Service). But our Service currently contains this line: