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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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Formatting strings

The Go standard library offers multiple ways to substitute values in a text template. Here, we will discuss the text formatting utilities in the fmt package. They offer a simple and convenient way to substitute values in a text template.

How to do it...

  • Use the fmt.Print family of functions to format values
  • fmt.Print will print a value using its default formatting
  • A string value will be printed as is
  • A numeric value will be first converted to a string as an integer, a decimal number, or by using scientific notation for large exponents
  • A Boolean value will be printed as true or false
  • Structured values will be printed as a list of fields

If a Print function ends with ln (such as fmt.Println), a new line will be output after the string.

If a Print function ends with f, the function will accept a format argument, which will be used as the template into which it will substitute values.

fmt.Sprintf will format a string and return...

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