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Learning Functional Programming in Go

Learning Functional Programming in Go

By : Sheehan
4.1 (8)
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Learning Functional Programming in Go

Learning Functional Programming in Go

4.1 (8)
By: Sheehan

Overview of this book

Lex Sheehan begins slowly, using easy-to-understand illustrations and working Go code to teach core functional programming (FP) principles such as referential transparency, laziness, recursion, currying, and chaining continuations. This book is a tutorial for programmers looking to learn FP and apply it to write better code. Lex guides readers from basic techniques to advanced topics in a logical, concise, and clear progression. The book is divided into four modules. The first module explains the functional style of programming: pure functional programming, manipulating collections, and using higher-order functions. In the second module, you will learn design patterns that you can use to build FP-style applications. In the next module, you will learn FP techniques that you can use to improve your API signatures, increase performance, and build better cloud-native applications. The last module covers Category Theory, Functors, Monoids, Monads, Type classes and Generics. By the end of the book, you will be adept at building applications the FP way.
Table of Contents (13 chapters)
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Summary


Building applications that have high cohesion and low coupling is a major goal in software engineering. In this chapter, we explored the pipeline pattern and you learned how to build component-based systems using flow-based programming (FPB) techniques. We studied FPB patterns and use cases that would benefit from applying the pipeline pattern.

We studied an example order processing flow. We progressed from an imperative implementation to a concurrent one using Goroutines and channels. We learned how I/O buffers can effectively be used to hold more than one order at a time and how this can compensate for variability in the time it takes each filter to process each order.

Our last implementation was an improvement upon the prior attempts. We created an elegant API based on the Filterer interface. We were able to define and control our entire order processing flow with this one command:  

pipeline := BuildPipeline(Decrypt{}, Charge{}, Authenticate{})

Lastly, we implemented various FPB...

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