0

Explore Products

Best Sellers

New Releases

Books

Videos

Audiobooks

Free Learning

The Clojure Workshop

You're reading from The Clojure Workshop Use functional programming to build data-centric applications with Clojure and ClojureScript

Product type Paperback

Published in Jan 2020

Publisher Packt

ISBN-13 9781838825485

Length 800 pages

Edition 1st Edition

Languages

Clojure

Tools

ClojureScript

Concepts

Functional Programming

Authors (5):

Konrad Szydlo

Yehonathan Sharvit

Scott McCaughie

Thomas Haratyk

Joseph Fahey

+1 more

View More author details

Table of Contents (17) Chapters

Preface

About the Book

1. Hello REPL!

2. Data Types and Immutability FREE CHAPTER

3. Functions in Depth

4. Mapping and Filtering

5. Many to One: Reducing

6. Recursion and Looping

7. Recursion II: Lazy Sequences

8. Namespaces, Libraries and Leiningen

9. Host Platform Interoperability with Java and JavaScript

10. Testing

11. Macros

12. Concurrency

13. Database Interaction and the Application Layer

14. HTTP with Ring

15. The Frontend: A ClojureScript UI

Appendix

Connecting to a Database

As alluded to previously, we'll be leveraging JDBC for all our database interactions. JDBC allows a Java client to connect to an RDBMS using a well-defined Application Programming Interface (API). This API gives us a clear contract between ourselves (the client) and our database (the server). Since Clojure sits atop the Java Virtual Machine (JVM), JDBC is the natural choice for us.

For those familiar with JDBC, you'll have encountered the (occasionally unwieldy) JDBC URL. These URLs vary depending on the RDBMS, where the database is located, and how it is secured, among other things. In essence, they are a database connection descriptor.

Fortunately, clojure.java.jdbc abstracts this away with its concept of db-spec (a database specification). db-spec is a simple map structure holding details pertinent to the connection we're looking to make. This db-spec structure can then be passed to any clojure.java.jdbc API call and it will build the...

The rest of the chapter is locked

Register for a free Packt account to unlock a world of extra content!

A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.

Unlock this book and the full library FREE for 7 days

Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of

Start free trial

Renews at $19.99/month. Cancel anytime

Authors (5)

Joseph Fahey

Joseph Fahey

Joseph Fahey has been a developer for nearly two decades. He got his start in the Digital Humanities in the early 2000s. Ever since then, he has been trying to hone his skills and expand his inventory of techniques. This lead him to Common Lisp and then to Clojure when it was first introduced. As an independent developer, Joseph was able to quickly start using Clojure professionally. These days, Joseph gets to write Clojure for his day job at Empear AB.

See other products by Joseph Fahey

Konrad Szydlo

Konrad Szydlo

Konrad Szydlo is a psychology and computing graduate from Bournemouth University. He has worked with Clojure for the last 8 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.

See other products by Konrad Szydlo

Yehonathan Sharvit

Yehonathan Sharvit

Yehonathan Sharvit has been a software developer since 2001. He discovered functional programming in 2009. It has profoundly changed his view of programming and his coding style. He loves to share his discoveries and his expertise. He has been giving courses on Clojure and JavaScript since 2016. He holds a master's degree in Mathematics.

See other products by Yehonathan Sharvit

Scott McCaughie

Scott McCaughie

Scott McCaughie lives near Glasgow, Scotland where he works as a senior Clojure developer for Previse, a Fintech startup aiming to solve the problem of slow payments in the B2B space. Having graduated from Heriot-Watt University, his first 6 years were spent building out Risk and PnL systems for JP Morgan. A fortuitous offer of a role learning and writing Clojure came up and he jumped at the chance. 5 years of coding later and it's the best career decision he's made. In his spare time, Scott is an avid reader, enjoys behavioral psychology and financial independence podcasts, and keeps fit by commuting by bike, running, climbing, hill walking, snowboarding. You get the picture!

See other products by Scott McCaughie

Thomas Haratyk

Thomas Haratyk

Thomas Haratyk graduated from Lille University of Science and Technology and has been a professional programmer for nine years. After studying computer science and starting his career in France, he is now working as a consultant in London, helping start-ups develop their products and scale their platforms with Clojure, Ruby, and modern JavaScript.

See other products by Thomas Haratyk

Other recommended products

Related to this chapter

Hands-On Reactive Programming with Clojure

Hands-On Reactive Programming with Clojure

Reactive Programming is central to many concurrent systems, and can help make the process of developing highly concurrent, event-driven, and asynchronous applications simpler and less error-prone. This edition aims at practically exploring reactive programming in the latest version of Clojure, while covering some of the newly added features.

Jan 2019 9h 56m

Personalised recommendations for you

Based on your interests and search pattern

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure

This book empowers you with in-depth knowledge of microservices architecture using .NET and Azure. Through hands-on tutorials, you'll be able to build, deploy, and manage scalable applications, gaining crucial skills for modern software development.

May 2024 16h 56m

Mastering Python Design Patterns

Mastering Python Design Patterns

Unlock the power of design patterns to build maintainable and scalable software and applications using Python. Authored by Python veterans, this book is your guide to mastering design patterns in Python.

May 2024 9h 52m

Mastering Python Design Patterns

Mastering Python Design Patterns

Unlock the power of design patterns to build maintainable and scalable software and applications using Python. Authored by Python veterans, this book is your guide to mastering design patterns in Python.

May 2024 9h 52m