Book Image

Mastering Go - Second Edition

By : Mihalis Tsoukalos
Book Image

Mastering Go - Second Edition

By: Mihalis Tsoukalos

Overview of this book

Often referred to (incorrectly) as Golang, Go is the high-performance systems language of the future. Mastering Go, Second Edition helps you become a productive expert Go programmer, building and improving on the groundbreaking first edition. Mastering Go, Second Edition shows how to put Go to work on real production systems. For programmers who already know the Go language basics, this book provides examples, patterns, and clear explanations to help you deeply understand Go’s capabilities and apply them in your programming work. The book covers the nuances of Go, with in-depth guides on types and structures, packages, concurrency, network programming, compiler design, optimization, and more. Each chapter ends with exercises and resources to fully embed your new knowledge. This second edition includes a completely new chapter on machine learning in Go, guiding you from the foundation statistics techniques through simple regression and clustering to classification, neural networks, and anomaly detection. Other chapters are expanded to cover using Go with Docker and Kubernetes, Git, WebAssembly, JSON, and more. If you take the Go programming language seriously, the second edition of this book is an essential guide on expert techniques.
Table of Contents (15 chapters)

Exercises

  • Write test functions for the byWord.go program that we developed in Chapter 8, Telling a UNIX System What to Do.
  • Write benchmark functions for the readSize.go program that we developed in Chapter 8, Telling a UNIX System What to Do.
  • Try to fix the problems in the Go code of documentMe.go and documentMe_test.go.
  • Use the text interface of the go tool pprof utility to examine the memoryProfile.out file generated by profileMe.go.
  • Modify webServer.go and webServer_test.go in order to work with other databases such as MySQL and SQLite3.
  • Modify the Dockerfile file from the last section in order to include webServer_test.go.
  • Modify Dockerfile in order to be able to execute go test -v for the web server. The changes have to do with creating the right PostgreSQL users and databases.
  • Use the web interface of the go tool pprof utility to examine the memoryProfile.out file generated...