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 (20 chapters)
Title Page

Developing a key-value store in Go

In this section, you will learn how to develop an unsophisticated version of a key-value store in Go, which means that you will learn how to implement the core functionality of a key-value store without any additional bells and whistles. The idea behind a key-value store is modest: answer queries fast and work as fast as possible. This translates into using simple algorithms and simple data structures.

The presented program will implement the four fundamental tasks of a key-value store:

  1. Adding a new element
  2. Deleting an existing element from the key-value store based on a key
  3. Looking up the value of a specific key in the store
  4. Changing the value of an existing key

These four functions allow you to have full control over the key-value store. The commands for these four functions will be named ADD, DELETE, LOOKUP, and CHANGE, respectively. This...