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

Talking to Kafka

In this section, you will learn how to write and read JSON records using Kafka. Its name was inspired by the author Franz Kafka, because Kafka software is optimized for writing. Kafka is written in Scala and Java. It was originally developed by LinkedIn and donated to the Apache Software Foundation back in 2011. Kafka's design was influenced by transaction logs.

The main advantage of Kafka is that it can be used to store lots of data fast, which might interest you when you have to work with huge amounts of real-time data. However, its disadvantage is that in order to maintain that speed, the data is read-only and stored in a naive way.

The following program, which is named writeKafka.go, will illustrate how to write data to Kafka. In Kafka terminology, writeKafka.go is a producer. The utility will be presented in three parts.

The first part of writeKafka.go...