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Deno Web Development
Deno Web Development

Deno Web Development: Write, test, maintain, and deploy JavaScript and TypeScript web applications using Deno

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Profile Icon Alexandre Portela dos Santos
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Full star icon Full star icon Full star icon Full star icon Half star icon 4.5 (13 Ratings)
Paperback Mar 2021 310 pages 1st Edition
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₱1431.99 ₱1591.99
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₱1989.99
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Arrow left icon
Profile Icon Alexandre Portela dos Santos
Arrow right icon
Free Trial
Full star icon Full star icon Full star icon Full star icon Half star icon 4.5 (13 Ratings)
Paperback Mar 2021 310 pages 1st Edition
eBook
₱1431.99 ₱1591.99
Paperback
₱1989.99
Subscription
Free Trial
eBook
₱1431.99 ₱1591.99
Paperback
₱1989.99
Subscription
Free Trial

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Table of content icon View table of contents Preview book icon Preview Book

Deno Web Development

Chapter 1: What is Deno?

Deno is a secure runtime for JavaScript and TypeScript. I'll guess that you are probably getting that excitement of experimenting with a new tool. You have worked with JavaScript or TypeScript and have at least heard of Node.js. Deno will feel like it has the right amount of novelty for you and, at the same time, has some things that will sound familiar for someone working in the ecosystem.

Before we start getting our hands dirty, we'll understand how Deno was created and its motivations. Doing that will help us learn and understand it better.

We'll be focusing on practical examples throughout this book. We'll be writing code and then rationalizing and explaining the underlying decisions we've made. If you come from a Node.js background, some of the concepts might sound familiar to you. We will also explain Deno and compare it with its ancestor, Node.js.

Once the fundamentals are in place, we'll dive into Deno and explore its runtime features by building small utilities and real-world applications.

Without Node, there would be no Deno. To understand the latter well, we can't ignore its 10+ year-old ancestor, which is what we'll look at in this chapter. We'll explain the reasons for its creation back in 2009 and the pain points that were detected after a decade of usage.

After that, we'll present Deno and the fundamental differences and challenges it proposes to solve. We'll have a look at its architecture, some principles and influences of the runtime, and the use cases where it shines.

After understanding how Deno came to life, we will explore its ecosystem, its standard library, and some use cases where Deno is instrumental.

Once you've read this chapter, you'll be aware of what Deno is and what it is not, why it is not the next version of Node.js, and what to think about when you're considering Deno for your next project.

In this chapter, we'll cover the following topics:

  • A little history
  • Why Deno?
  • Architecture and technologies that support Deno
  • Grasping Deno's limitations
  • Exploring Deno's use cases

Let's get started!

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Key benefits

  • 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

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.

Who is this book 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.

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

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Mar 26, 2021
Length: 310 pages
Edition : 1st
Language : English
ISBN-13 : 9781800205666
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Product Details

Publication date : Mar 26, 2021
Length: 310 pages
Edition : 1st
Language : English
ISBN-13 : 9781800205666
Languages :
Tools :

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Table of Contents

14 Chapters
Section 1: Getting Familiar with Deno Chevron down icon Chevron up icon
Chapter 1: What is Deno? Chevron down icon Chevron up icon
Chapter 2: The Toolchain Chevron down icon Chevron up icon
Chapter 3: The Runtime and Standard Library Chevron down icon Chevron up icon
Section 2: Building an Application Chevron down icon Chevron up icon
Chapter 4: Building a Web Application Chevron down icon Chevron up icon
Chapter 5: Adding Users and Migrating to Oak Chevron down icon Chevron up icon
Chapter 6: Adding Authentication and Connecting to the Database Chevron down icon Chevron up icon
Chapter 7: HTTPS, Extracting Configuration, and Deno in the Browser Chevron down icon Chevron up icon
Section 3: Testing and Deploying Chevron down icon Chevron up icon
Chapter 8: Testing – Unit and Integration Chevron down icon Chevron up icon
Chapter 9: Deploying a Deno Application Chevron down icon Chevron up icon
Chapter 10: What's Next? Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

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Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.5
(13 Ratings)
5 star 61.5%
4 star 30.8%
3 star 7.7%
2 star 0%
1 star 0%
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Peter Can Aug 11, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This is a great book that covers all you need to know about creating web applications with Deno.It covers from installing Deno to development of your first web application, configuration, testing and deployment...a really complete learning experience!!
Amazon Verified review Amazon
Migdon Apr 07, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
A very insightful read that clearly explains Deno and its premises. Loved how practical it is, and how you can go directly to the sections you want and learn about different parts of building a web application. Recommended!
Amazon Verified review Amazon
NdagiStanley May 31, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The book starts with the foundations of Javascript, introduction of NodeJS and the eases into Deno giving you a big picture before getting granular. The author attentively guides the reader through the major topics; write, test, maintain and deploy Deno apps (I appreciated the thoroughness)
Amazon Verified review Amazon
Mr. Robert Young Jun 06, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
NOTE: I am still working my way through this book - review copy provided by PacktThis book is a good start for those interested in what Deno is and what you can do with it.The book goes over the history of Deno, the architecture and tech that support Deno, how to deal with it's limitations, exploring use cases, the Toolchain, Runtime and Standard library so you get to grasp alot of what it is about and what it can do.Then you go full circle in to building an application using Deno, how to structure it (folder and app architecture) to migration (Oak) to auth, DB connection (MongoDB) then look at how to enable CORS & HTTPS and running Deno code in the browser.Lastly, the book covers testing (unit/integration) and deployment of a Deno application.I have enjoyed the book so far with plenty of the book to consume and learn from. I hope this review heps others make a decision if they want to learn a bit more about Deno and what it can do and how it can be used.
Amazon Verified review Amazon
Gustavo Apr 09, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
A really cool read that clearly explains Deno, its principles, and use-cases while going through the important phases of building a web application. Cool that it starts with the explanation of the technology and finished with a deployed application
Amazon Verified review Amazon
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