Summary

In this chapter, we finally started building an application that leverages our knowledge of Deno. We started by considering the main goals we will have when we build an application and define its architecture. These goals will set the tone for most of our conversations regarding architecture and structure throughout this book as we'll keep going back to them, ensuring that we're in line with them.

We started by creating our folder structure and trying to achieve our very first application goal: have an HTTP endpoint that lists museums. We did this by building the simple business logic first and progressed while needs such as separation of concerns and isolation and responsibilities arose. These needs derived our architecture, proving why the layers and abstractions we created are useful and demonstrating what they add.

By having the responsibilities and the module's interfaces well-defined, we understood that we could temporarily build our application by...