This book is practical guide to developing high quality applications using NodeJs; and shows how to set things up such that you ensure that its quality can be verified. It is about having confidence in your applications.

This book is primarily aimed at developers who have already developed NodeJs applications, and want to "do it better". Those who have not developed one before could still benefit from learning good practices from the get-go, but be prepared for a steeper learning curve!

This book is accompanied by a follow up book, Developing Quality NodeJs Application In Depth, which goes into greater detail, and covers more advanced aspects of developing NodeJs applications.

The focus will be on developing web servers using NodeJs. There are other types of applications you can write using NodeJs, such as command line tools, however, the example source code that we will see relates to this category of applications.

Effort has been made to write about libraries, frameworks, and technologies in a general manner. This is quite difficult though, as there is a problem in dwelling in the abstract for too long: Analysis paralysis. Thus, while the concepts will be presented in general terms, the implementation will be described using just one or two libraries, frameworks or technologies.

The code examples that we will use within the book are Short, Self-contained, Correct Examples (SCCEEs), or at least strive to be. Where more detailed examples are beneficial, they will be made available in a public code repository an linked to within the text. The SCCEEs will be used to survey various concepts, and serve as a springboard for the more complex and involved examples.