Book Image

Go Programming Cookbook - Second Edition

By : Aaron Torres
Book Image

Go Programming Cookbook - Second Edition

By: Aaron Torres

Overview of this book

Go (or Golang) is a statically typed programming language developed at Google. Known for its vast standard library, it also provides features such as garbage collection, type safety, dynamic-typing capabilities, and additional built-in types. This book will serve as a reference while implementing Go features to build your own applications. This Go cookbook helps you put into practice the advanced concepts and libraries that Golang offers. The recipes in the book follow best practices such as documentation, testing, and vendoring with Go modules, as well as performing clean abstractions using interfaces. You'll learn how code works and the common pitfalls to watch out for. The book covers basic type and error handling, and then moves on to explore applications, such as websites, command-line tools, and filesystems, that interact with users. You'll even get to grips with parallelism, distributed systems, and performance tuning. By the end of the book, you'll be able to use open source code and concepts in Go programming to build enterprise-class applications without any hassle.
Table of Contents (16 chapters)

Executing state management for channels

Channels can be any type in Go. A channel of structs allows you to pass a lot of state with a single message. This recipe will explore the use of channels to pass around complex request structures and return their results in complex response structs.

In the next recipe, Using the worker pool design pattern, the value of this becomes even more apparent as you can create general purpose workers capable of performing a variety of tasks.

How to do it...

These steps cover writing and running your application:

  1. From your Terminal or console application,createa new directory called~/projects/go-programming-cookbook/chapter10/stateand navigate to it.
  2. Run the following command:
          $ go mod init github.com/PacktPublishing/Go-Programming-Cookbook-Second-Edition/chapter10/state

You should see a file calledgo.modthat contains the following content:

module...