Book Image

Building Microservices with Go

By : Nic Jackson
Book Image

Building Microservices with Go

By: Nic Jackson

Overview of this book

Microservice architecture is sweeping the world as the de facto pattern to build web-based applications. Golang is a language particularly well suited to building them. Its strong community, encouragement of idiomatic style, and statically-linked binary artifacts make integrating it with other technologies and managing microservices at scale consistent and intuitive. This book will teach you the common patterns and practices, showing you how to apply these using the Go programming language. It will teach you the fundamental concepts of architectural design and RESTful communication, and show you patterns that provide manageable code that is supportable in development and at scale in production. We will provide you with examples on how to put these concepts and patterns into practice with Go. Whether you are planning a new application or working in an existing monolith, this book will explain and illustrate with practical examples how teams of all sizes can start solving problems with microservices. It will help you understand Docker and Docker-Compose and how it can be used to isolate microservice dependencies and build environments. We finish off by showing you various techniques to monitor, test, and secure your microservices. By the end, you will know the benefits of system resilience of a microservice and the advantages of Go stack.

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Table of Contents (18 chapters)
Title Page
Title Page
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Customer Feedback
Customer Feedback
Preface
Preface
Free Chapter
1
Introduction to Microservices
Introduction to Microservices
Building a simple web server with net/http
Reading and writing JSON
Routing in net/http
Context
RPC in the Go standard library
Summary
2
Designing a Great API
Designing a Great API
RESTful APIs
RPC APIs
Versioning APIs
Object type standardization
Documenting APIs
Summary
3
Introducing Docker
Introducing Docker
Introducing Containers with Docker
Installing Docker
Running our first container
Docker volumes
Docker ports
Removing a container starting with an explicit name
Docker networking
Writing Dockerfiles
Docker Compose
Summary
4
Testing
Testing
The testing pyramid
Outside-in development
Benchmarking and profiling
Summary
5
Common Patterns
Common Patterns
Design for failure
Patterns
Summary
6
Microservice Frameworks
Microservice Frameworks
What makes a good microservice framework?
Micro
Kite
gRPC
Summary
7
Logging and Monitoring
Logging and Monitoring
Logging best practices
Metrics
Logging
Exceptions
Summary
8
Security
Security
Encryption and signing
External security
Application security
Maintenance
Summary
9
Event-Driven Architecture
Event-Driven Architecture
Differences between synchronous and asynchronous processing
Types of asynchronous messages
Command Query Responsibility Segregation (CQRS)
Domain-driven design
Software
Summary
10
Continuous Delivery
Continuous Delivery
What is continuous delivery?
What is container orchestration?
What is immutable infrastructure?
Terraform
Example application
Summary
Index
Index

About the Reviewers

Magnus Larsson has been in the IT business since 1986. He is an experienced architect in areas such as distributed systems, systems integration, and SOA. He is currently engaged in exploring the benefits of modern technologies such as microservices, container technologies, reactive frameworks, and mobile solutions.

Magnus has a special dedication to the open source community for Java and has been active in various projects over the years. He enjoys exploring other languages and currently finds the Go language very interesting for building microservices. He is also a frequent speaker at conferences such as Cadec, Spring I/O, Jfokus, and jDays.

Magnus lives outside Gothenburg, Sweden, with his family. When time permits, he enjoys cross-country skiing, which must be done either on roller skis or indoors, in the Gothenburg area for most of the year.

He has worked for large corporations such as Digital Equipment Corporation, AstraZeneca, and Ericsson Hewlett Packard Telecom over the years. In 2000, Magnus co-founded Callista Enterprise AB, a Swedish-based consultancy company specialized in software architecture.

Erik Lupander is a software architect and developer with over 15 years of professional experience. A lifelong computer and software enthusiast, he wrote his first GW-BASIC programs at the age of 7 back in the mid-80s.

Erik holds an M.Sc. in applied informatics from the University of Gothenburg and has worked in a variety of roles in the software industry ever since. While JVM-based languages and architecture has been his bread and butter, he is a polyglot software craftsman at heart who, among other technologies, has embraced the Go programming language and microservice architecture.

Erik has spoken at software conferences such as Scandev (2012), dev:mobile (2014), and Cadec (2016, 2017) about topics ranging from OpenGL ES to Golang and microservices.

He lives just outside Gothenburg, Sweden, with his wife and two children. Aside from family, computers, and software, he enjoys alpine skiing, golf, and running, and he is an avid supporter of IFK Gothenburg.

Erik is currently employed by Callista Enterprise AB, a Swedish-based consultancy specialized in software architecture. His previous employers include Siemens Medical Solutions, Epsilon IT, University of Gothenburg, and Squeed AB.

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