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  • Book Overview & Buying Go Recipes for Developers
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Go Recipes for Developers

Go Recipes for Developers

By : Burak Serdar
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Go Recipes for Developers

Go Recipes for Developers

By: Burak Serdar

Overview of this book

With its simple syntax and sensible conventions, Go has emerged as the language of choice for developers in network programming, web services, data processing, and other settings. This practical guide helps engineers leverage Go through up-to-date recipes that solve common problems in day-to-day programming. Drawing from three decades of distributed systems engineering and technical leadership at companies like Red Hat, Burak Serdar brings battle-tested expertise in building robust, scalable applications. He starts by covering basics of code structure, describing different approaches to organizing packages for different types of projects. You’ll discover practical solutions to engineering challenges in network programming, dealing with processes, databases, data processing pipelines, and testing. Each chapter provides working solutions and production-ready code snippets that you can seamlessly incorporate into your programs while working in sequential and concurrent settings. The solutions leverage the more recent additions to the Go language, such as generics and structured logging. Most of the examples are developed using the Go standard library without any third-party packages. By the end of this book, you’ll have worked through a collection of proven recipes that will equip you accelerate your Go development journey.
Table of Contents (20 chapters)
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Working with multiple channels using the select statement

You can only send data or receive data from a channel at any given time. If you are interacting with multiple goroutines (and thus, multiple concurrent events), you need a language construct that will let you interact with multiple channels at once. That construct is the select statement.

This section shows how select is used.

How to do it...

A blocking select statement chooses an active case from zero or more cases. Each case is a channel send or channel receive event. If there are no active cases (that is, none of the channels can be sent to or received from), select is blocked.

In the following example, the select statement waits to receive from one of two channels. The program receives from only one of the channels. If both channels are ready, one of the channels will be picked randomly. The other channel will be left unread:

ch1:=make(chan int)
ch2:=make(chan int)
go func() {
  ch1<-1
}()
go...
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Go Recipes for Developers
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