Book Image

Mastering Go – Third Edition - Third Edition

By : Mihalis Tsoukalos
5 (2)
Book Image

Mastering Go – Third Edition - Third Edition

5 (2)
By: Mihalis Tsoukalos

Overview of this book

Mastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients. Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you’ll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You’ll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways. This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge. With the help of Mastering Go, you’ll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.
Table of Contents (17 chapters)
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  • Write a Go program that converts an existing array into a map.
  • Write a Go program that converts an existing map into two slices—the first slice contains the keys of the map whereas the second slice contains the values. The values at index n of the two slices should correspond to a key and value pair that can be found in the original map.
  • Make the necessary changes to nameSurRE.go to be able to process multiple command-line arguments.
  • Change the code of intRE.go to process multiple command-line arguments and display totals of true and false results at the end.
  • Make changes to csvData.go to separate the fields of a record based on the # character.
  • Write a Go utility that converts os.Args into a slice of structures with fields for storing the index and the value of each command-line argument—you should define the structure that is going to be used on your own.
  • Make the necessary changes to phoneBook.go in order to create...