The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
Kick off your book project in 2 hours, get started with GhostAI in 2 hours, or do both! Free live workshops, on Zoom. You’ll leave with a real book project and a clear plan to keep going. Saturday, June 27, 2026.
OpenAI API, Zod, and LangChain.js
Stop learning Python and start building AI with the tools you already master. Master production-ready AI orchestration using Node.js, LangChain, and type-safe Zod. Bridge the gap between web development and AI Engineering without switching your stack. Start your journey with the Web AI Series and build the next generation of intelligent apps.
Minimum price
$9.99
$19.00
Buying multiple copies for your team? See below for a discount!
About the Book
Stop Learning Python. Build AI with the Tools You Already Know.
Are you a JavaScript or TypeScript developer feeling left behind by the AI revolution? Do you think you need to restart your career as a Data Scientist just to build a chatbot?
You don’t.
The future of Artificial Intelligence isn't just about training models; it's about building applications. And for the application layer, JavaScript is king.
Building Intelligent Apps with JavaScript & TypeScript is Volume 1 of the Web AI Series. It is a no-nonsense, theory-first guide designed to transform experienced web developers into AI Engineers using the stack they already love.
In this foundational volume, you will break the Python monopoly. You will learn that Node.js is not just an alternative; it is often the superior choice for high-concurrency, low-latency AI orchestration.
What You Will Master in Volume 1:
Who This Book Is For:
This book is written for Software Engineers, not researchers. If you know React, Node.js, or TypeScript, you are ready. We focus on architecture, design patterns, and production-readiness.
The ecosystem has changed. You don't need to switch languages to build the next generation of intelligent apps. You just need the right blueprint.
Start your journey into AI Engineering today.
Multiple-choice 200 questions test book avalialble here.
Team Discounts
Get a team discount on this book!
Up to 3 members
Up to 5 members
Up to 10 members
Up to 15 members
Up to 25 members
About the Author
A veteran software engineer with 20 years of experience, I have dedicated my career to the art of automation. My philosophy is simple: programming should eliminate repetitive chores to unlock human creativity. This journey began early on with the development of custom code-generation tools and has evolved into a deep mastery of LLMs and their APIs. Today, I specialize in architecting AI-driven solutions that handle everything from complex coding and security tasks to advanced knowledge retrieval, transforming the way we interact with technology
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.
Learn more about writing on Leanpub
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!
Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.
Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.