Microservices with Go

This is the code repository for Microservices with Go, published by Packt.

Building scalable and reliable microservices with Go

What is this book about?

This book covers the following exciting features:

Get familiar with the industry’s best practices and solutions in microservice development
Understand service discovery in the microservices environment
Explore reliability and observability principles
Discover best practices for asynchronous communication
Focus on how to write high-quality unit and integration tests in Go applications
Understand how to profile Go microservices

If you feel this book is for you, get your copy today!

Errata

Page 39: In the Handler section, the import statement "movieexample.com/rating/internal/controller" must be read as "movieexample.com/rating/internal/controller/rating".
Page 64-67: The types "serviceName" and "instanceID" are defined, but these same names are also used as method parameters, causing a naming clash as the methods Register, Deregister, ReportHealthyState and ServiceAddresses also access the serviceAddrs slice which uses serviceName and instanceID as types also.
Page 69: The for loop on this page must be read as " for _, e := range entries { res = append(res, fmt.Sprintf("%s:%d", e.Service.Address, e.Service.Port))) }". That is "res = append(res, " is repeated twice which must be ignored.

Suggestion -- Chapter07: quick fixes for MySQL, grpcurl

In case you are not able to follow along due to some steps being left out, please try these steps before chapter07 examples:

run CREATE DATABASE movieexample (you probably want to access the container instance to execute this command by using mysql -uroot -ppassword in Docker first)
run go install github.com/fullstorydev/grpcurl/cmd/grpcurl@latest to get grpcurl on your machine

Suggested by our reader jasonsalas here.

Instructions and Navigations

All of the code is organized into folders. For example, Chapter02.

The code will look like the following:

package main
import (
    “encoding/json”
    “fmt”
    “os”
    “time”
    
    “github.com/confluentinc/confluent-kafka-go/kafka”    
    “movieexample.com/rating/pkg/model”
)

Following is what you need for this book: This book is for all types of developers, from people interested in learning how to write microservices in Go to seasoned professionals who want to take the next step in mastering the art of writing scalable and reliable microservice-based systems. A basic understanding of Go will come in handy.

With the following software and hardware list you can run all code files present in the book (Chapter 1-13).

Software and Hardware List

Chapter	Software required	OS required
1-13	Go 1.11 or above	Windows, Mac OS X, and Linux (Any)
1-13	Docker	Windows, Mac OS X, and Linux (Any)
1-13	grpcurl	Windows, Mac OS X, and Linux (Any)
1-13	Kubernetes	Windows, Mac OS X, and Linux (Any)
1-13	Prometheus	Windows, Mac OS X, and Linux (Any)
1-13	Jaeger	Windows, Mac OS X, and Linux (Any)
1-13	Graphviz	Windows, Mac OS X, and Linux (Any)

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. Click here to download it.

Get to Know the Author

Alexander Shuiskov Senior Software Engineer II at Uber. He carries immense experience in Distributed Systems, Microservices, and Observability. He has completed his MSc in Computer Science and after which he has worked in prominent companies like eBay, Booking, and so on. He has led the development of Uber alerting and contributed to 25 Uber services. He was also an active contributor to the development of the eBay Ad platform.

Download a free PDF

If you have already purchased a print or Kindle version of this book, you can get a DRM-free PDF version at no cost.
Simply click on the link to claim your free PDF.

https://packt.link/free-ebook/9781804617007

ronaldosaheki / Microservices-with-Go