Summary

In this chapter, we learned about the core concepts and components in Express. We were also introduced to some example Express code, which prepared us for what we will be coming across in the coming chapters.

We now know what the omnipresent req, res, and next objects are in an Express application. We learned how to write middlewares and Node modules to extend the capability of our Express app. We are now ready get hands-on with a real Express app.

In the next chapter, we will get coding and create our first Express app. We will start from the very basics and learn about the various aspects that make up an Express app.