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Learn functional programming techniques at the architectural level and use them to solve real-world problems

Understand how to think about code functionally

Learn about the trade-offs of functional programming and object-oriented programming (OOP) in Go

Description

While Go is a multi-paradigm language that gives you the option to choose whichever paradigm works best for the particular problem you aim to solve, it supports features that enable you to apply functional principles in your code. In this book, you’ll learn about concepts central to the functional programming paradigm and how and when to apply functional programming techniques in Go. Starting with the basic concepts of functional programming, this Golang book will help you develop a deeper understanding of first-class functions. In the subsequent chapters, you’ll gain a more comprehensive view of the techniques and methods used in functional languages, such as function currying, partial application, and higher-order functions. You’ll then be able to apply functional design patterns for solving common programming challenges and explore how to apply concurrency mechanisms to functional programming. By the end of this book, you’ll be ready to improve your code bases by applying functional programming techniques in Go to write cleaner, safer, and bug-free code.

What you will learn

Gain a deeper understanding of functional programming through practical examples

Build a solid foundation in core FP concepts and see how they apply to Go code

Discover how FP can improve the testability of your code base

Apply functional design patterns for problem solving

Understand when to choose and not choose FP concepts

Discover the benefits of functional programming when dealing with concurrent code

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Ankit Apr 10, 2023

I recently read ‘Functional Programming in Go’ and found it to be a great resource. The examples were particularly well-explained and easy to understand. The techniques explained in the book about functional programming were very helpful. I would highly recommend this book to anyone looking to learn more about functional programming in Go.

Amazon Verified review

C. Evans Mar 25, 2023

As a software engineer who has only really dabbled in Go and in Functional Programming with Haskell, this has opened my eyes to a lot of the power that lies behind the 2.Firstly the introduction to the book is rife with information about what to expect going forwards. It lays out the chapters and what will be covered in each one, as well as providing a GitHub with examples to follow. It walks you through getting setup and places you in a position where you can easily follow along, try out the examples further on in the book and get a real feeling for the power behind Go and writing Functional code within it.One thing I really enjoyed about this book is the emphasis on using the right tool for the job. The author stresses that whilst Functional Programming is a great paradigm (similarly with things like Pure functions over Impure functions), it's not ALWAYS the right way to go, an they go into why that is, and when to use each.If you're an engineer from other, more predominantly OOP, languages such as C# or Java, you might find certain elements of this book familiar. That really helps to understand what is going on at each step along the way; a lot of the examples in this book will be easy to relate to and understand as a result of this.The author talks about function purity, recursion, currying, higher order functions, testing, functors & monads, function categories (alongside some examples you could apply to the real world), function composition, functional design patterns, concurrency and WAY more. Examples are provided for every step and are ideal for the given topic, thus easy to follow and understand as well as relate to.I've come away from this book with a far greater understanding of both Go and the Functional paradigm itself, in fact I now want to go away and explore how I can utilise the Functional paradigm in other languages I enjoy using, just because!It's not a fast read, you'll want to play around with your own version of each example and tinker with things; I personally think that's part of the beauty of this book.The contrast between OOP and FP is made clear in this book; you can really see the pros and cons of both and apply those to your daily work.For any of you out there who struggle to wrap your heads around Monads, this book gives a fantastic description by walking you towards it over time rather than dropping the concept on your head and expecting you to understand it. I really enjoyed that, and this made me realise I hadn't quite got it right up until now!This book really does delve into the specifics and advanced side of things, but you're taken on a journey to get there with a more full understanding of things. Don't be put off by scanning the Table of Contents and seeing some complicated topics on there, as by the time you reach them you'll know everything you need to know.In summation I'd advise this book to anybody with a remote interest in Go and / or Functional Programming. If you're curious about either and haven't used them much this book will give you an understanding of them and you'll know by the end whether you want to play with them or not. In most cases I imagine you will want try both out, but in particular Functional Programming as it's a fantastic paradigm to get wrapped up in.Give this a read and prepare to lose hours in the examples, it's a fun journey and you won't regret it.

Levi Buck Mar 24, 2023

This is a very good book, and easy to read and learn more about Go and functional programming.Some basic programming experience is definitely required, but the books starts relatively easy on the subject. On top of that is has great examples to learn from. It even answers the questions: "Why" and "When to apply XYZ" and also compares this to a more well knows programming design: OOP.The book starts with an easy to follow introduction, before heading into more advanced concepts, such as recursions. I can't stress enough that the examples given in this book are amazing. It even has a dedicated GitHub. Making it incredibly valuable to get the free .PDF and read while you can implement the techniques yourself.

Quenin Bertrand May 06, 2023

The book "Functional Programming in Go" was an interesting read for me as I was curious to see how the author would approach the topic of functional programming with a language that wasn't initially designed for it. However, I must say that the author did an excellent job of presenting the concepts of functional programming in a clear and concise manner, while also showing how they can be applied in Go.The book covers various topics related to functional programming, such as higher-order functions, closures, immutability, and concurrency. The author also provides numerous examples and code snippets that illustrate these concepts and how they can be implemented in Go.Overall, I would recommend "Functional Programming in Go" to anyone interested in learning about functional programming or wants to explore how it can be applied in Go. The book is well-written and provides a solid foundation for understanding functional programming principles.

POE May 11, 2023

Until recently, functional programming was considered by many as the wrong way to program. As machine learning and data science continue to rule our world, the need for functional programming is increasing. This book provides great insights how to implement functional programming in Go.The book starts off with some introductory chapters and I recommend reading them. If you do not skip these chapters, you are apt to walk away as a fan of functional programming. Beyond that, the book contains a lot of great examples with explanations.This is well worth the purchase and time to read it.

Functional Programming in Go: Apply functional techniques in Golang to improve the testability, readability, and security of your code

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