A curious JavaScript developer's practical guide to deep dive into Deno and get the most out of it for building secure web applications

Key Features

• Understand Deno’s essential concepts and features
• Learn how to use Deno in real-world scenarios
• Use Deno to develop, test, and deploy web applications and tools

Book Description

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.

What you will learn

• Understand why you should use Deno
• Get to grips with tooling and the Deno ecosystem
• Build Deno web applications using existing Node.js knowledge and the newest ECMA Script 6 features
• Explore the standard library and the benefits of Deno’s security model
• Discover common practices and web frameworks to build a REST API in Deno
• Structure a web application using common architecture practices
• Test and deploy a Deno application in the cloud using Docker

Who this book is for

This book is for web developers who want to leverage their JavaScript and TypeScript skills in a secure, simple, and modern runtime, using Deno for web app development. Beginner-level knowledge of Node.js is recommended but not required.

Table of Contents

1. What is Deno?
2. The Toolchain
3. The Runtime and Standard Library
4. Building a Web Application
5. Adding Users and Migrating to Oak
6. Adding Authentication and Connecting to the Database
7. HTTPS, Extracting Configuration, and Deno in the Browser
8. Testing - Unit and Integration
9. Deploying a Deno Application
10. What's Next?

About the Author

Alexandre Portela dos Santos is a software engineer passionate about products and startups. For the last 8+ years, he's been working together with multiple companies, using technology as an enabler for ideas and businesses. With a big interest in education and getting people excited about technology, he makes sure he's always involved with people that are learning about it, being it via blog posts, books, open-source contributions, or meetups. This is, by itself, a learning adventure that Alexandre loves to be a part of. Being a true believer that great software only happens through collaboration, ownership, and teams of great people, he strives to nurture those values in every project he works in.