Book Image

Deno Web Development

By : Alexandre Portela dos Santos
Book Image

Deno Web Development

By: Alexandre Portela dos Santos

Overview of this book

Deno is a JavaScript and TypeScript runtime with secure defaults and a great developer experience. With Deno Web Development, you'll learn all about Deno's primitives, its principles, and how you can use them to build real-world applications. The book is divided into three main sections: an introduction to Deno, building an API from scratch, and testing and deploying a Deno application. The book starts by getting you up to speed with Deno's runtime and the reason why it was developed. You'll explore some of the concepts introduced by Node, why many of them transitioned into Deno, and why new features were introduced. After understanding Deno and why it was created, you will start to experiment with Deno, exploring the toolchain and writing simple scripts and CLI applications. As you progress to the second section, you will create a simple web application and then add more features to it. This application will evolve from a simple 'hello world' API to a web application connected to the database, with users, authentication, and a JavaScript client. In the third section, the book will take you through topics such as dependency management, configuration and testing, finishing with an application deployed in a cloud environment. By the end of this web development book, you will become comfortable with using Deno to create, maintain, and deploy secure and reliable web applications.
Table of Contents (15 chapters)
Section 1: Getting Familiar with Deno
Section 2: Building an Application
Section 3: Testing and Deploying

Looking back at our journey

A lot of ground was covered. We trust the book was (hopefully) an interesting journey, from not knowing Deno to building something with it, and finishing up with a deployed application.

We started by getting to know the tool itself, first by learning about the functionalities it provides, and then by writing simple programs with the standard library. As our knowledge built up we rapidly started to have enough to build a real application with it, and that's what we did.

The adventure began by building the simplest possible web server, using the standard library. We used TypeScript extensively to help in specifying clear application boundaries, and we managed to get a very simple application running, hitting our very first checkpoint: hello world.

Our application evolved, and as it started to have more complex requirements, we needed to dive into the web frameworks available on the Deno community. After making a high-level comparison between...