Book Image

Mastering Go - Fourth Edition

By : Mihalis Tsoukalos
4.5 (2)
Book Image

Mastering Go - Fourth Edition

4.5 (2)
By: Mihalis Tsoukalos

Overview of this book

Mastering Go, now in its fourth edition, remains the go-to resource for real-world Go development. This comprehensive guide delves into advanced Go concepts, including RESTful servers, and Go memory management. This edition brings new chapters on Go Generics and fuzzy Testing, and an enriched exploration of efficiency and performance. As you work your way through the chapters, you will gain confidence and a deep understanding of advanced Go topics, including concurrency and the operation of the Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You will be engaged in real-world exercises, build network servers, and develop robust command-line utilities. With in-depth chapters on RESTful services, the WebSocket protocol, and Go internals, you are going to master Go's nuances, optimization, and observability. You will also elevate your skills in efficiency, performance, and advanced testing. With the help of Mastering Go, you will become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.
Table of Contents (19 chapters)
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A Quick Introduction to Go

Despite its name, this chapter is more than just a quick introduction to Go, as it is also going to be the foundation for the rest of the book. The basics of Go, some design decisions, and the philosophy of Go are explained in this chapter so that you can get the big picture before learning the details of Go. Among other things, we present the advantages and disadvantages of Go so that you know when to use Go and when to consider other alternatives.

In the sections that follow, we cover a number of concepts and utilities in order to build a solid foundation of Go, before building a simplified version of the which(1) utility, which is a UNIX utility that locates program files by searching the directories of the PATH environment variable. Additionally, we explain how to write information in log files, as this can help you store error messages and warnings while you are developing software in Go.

At the end of the chapter, we develop a basic command line utility that computes basic statistical properties. It is that command line utility that we are going to improve and expand in the remaining book chapters as we learn more advanced Go features.

The contents of this chapter are:

  • Introducing Go
  • When to use Go
  • Hello World!
  • Running Go code
  • What you should know about Go
  • Developing the which(1) utility in Go
  • Logging information
  • Developing a statistics application