Borges Leonardo - Hands-On Reactive Programming with Clojure - Second Edition

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First published: March 2015
Second edition: January 2019

Production reference: 1240119

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Konrad Szydlo has worked with Clojure for the last 7 years. Since January 2016, he has worked as a software engineer and team leader at Retailic, responsible for building a website for the biggest royalty program in Poland. Prior to this, he worked as a developer with Sky, developing e-commerce and sports applications, where he used Ruby, Java, and PHP. He is also listed in the Top 75 Datomic developers on GitHub.

Konrad is a part of the Clojurian Slack community, is very interested in functional programming, and gave a Datomic Database talk at the ClojureD conference in Berlin in 2015. He also gave a talk on Creating reactive components using ClojureScript React wrappers during Lambda Days in Krakw in 2016.

Leonardo Borges is a programming languages enthusiast who loves writing code, contributing to open source software, and speaking on subjects he feels strongly about. He has used Clojure professionally, both as a lead consultant at ThoughtWorks and as a development team lead at Atlassian, where he helped build real-time collaborative editing technology.

Leonardo is currently the CTO for MODRON. Apart from this book, he contributed a couple of chapters to Clojure Cookbook, O'Reilly.

Leonardo founded and currently runs the Sydney Clojure User Group in Australia. He also writes posts about software, with a focus on functional programming, on his website. When he isn't writing code, he enjoys riding motorcycles, weightlifting, and playing the guitar.

Eduard Bondarenko is a software developer living in Kyiv, Ukraine. He started programming using Basic on a ZX Spectrum a long time ago. Later, he worked in the web development domain. He has used Ruby on Rails for over 8 years. Having used Ruby for a long time, he discovered Clojure in early 2009 and liked the simplicity of the language. Besides Ruby and Clojure, he is interested in Go and ReasonML development.

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Highly concurrent applications, such as user interfaces, have traditionally managed state through the mutation of global variables. Various actions are coordinated via event handlers, which are procedural in nature.

Over time, the complexity of a system increases. New feature requests come in, and it becomes harder and harder to reason about the application.

Functional programming presents itself as an extremely powerful ally in building reliable systems by eliminating mutable states and allowing applications to be written in a declarative and composable way.

Such principles gave rise to functional Reactive Programming and Compositional Event Systems, programming paradigms that are exceptionally useful in building asynchronous and concurrent applications. They allow you to model mutable states in a functional style.

This book is devoted to these ideas and presents a number of different tools and techniques to help manage the increasing complexity of modern systems.