Skip to Content
Ash Framework
book

Ash Framework

by Rebecca Le, Zach Daniel
August 2025
Intermediate to advanced
294 pages
6h 59m
English
Pragmatic Bookshelf
Content preview from Ash Framework

Why Ash?

Ash is built on three fundamental principles. These principles are rooted in the concept of declarative design and have arisen from direct encounters with the good, bad, and the ugly of software in the wild. They are:

  • Data > Code
  • Derive > Hand-write
  • What > How

To paraphrase a famous manifesto, while there is value in the items on the right, we value the items on the left more.

No principle is absolute, and each has its own trade-offs, but together they can help us build rich, maintainable, and scalable applications. The “why” of Ash is rooted in the “why” of each of these core principles.

Data > Code

With Ash, we model (describe) our application components with resource modules, using code that compiles into predefined data structures. ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Hands-on Rust

Hands-on Rust

Herbert Wolverson
Rust in Action

Rust in Action

Tim McNamara
Code Like a Pro in Rust

Code Like a Pro in Rust

Brenden Matthews
Async Rust

Async Rust

Maxwell Flitton, Caroline Morton

Publisher Resources

ISBN: 9798888651865Publisher Website