Master key features of Go, including advanced concepts like concurrency and working with JSON, to create and optimize real-world services, network servers, and clientsKey FeaturesThis third edition of the bestselling guide to advanced Go programming has been overhauled and expanded to cover RESTful servers, the WebSocket protocol, and Go genericsUse real-world exercises to build high-performance network servers and powerful command line utilitiesPacked with practical examples and utilities to apply to your own development work and administrative tasksGet clear explanations about Go nuances and features to simplify Go developmentBook DescriptionMastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients.Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you'll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You'll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways.This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge.With the help of Mastering Go, you'll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.What you will learnUse Go in productionWrite reliable, high-performance concurrent codeManipulate data structures including slices, arrays, maps, and pointersDevelop reusable packages with reflection and interfacesBecome familiar with generics for effective Go programmingCreate concurrent RESTful servers, and build gRPC clients and serversDefine Go structures for working with JSON dataWho this book is forYou'll need to know the basics of Go before you get started with this book, but beyond that, anyone can sink their teeth into it. It's written primarily for Go programmers who have a bit of experience with the language and want to become expert practitioners.Table of ContentsA Quick Introduction to GoBasic Go Data TypesComposite Data TypesReflection and InterfacesGo Packages and FunctionsTelling a UNIX System What to DoGo ConcurrencyBuilding Web ServicesWorking with TCP/IP and WebSocketWorking with REST APIsCode Testing and ProfilingWorking with gRPCGo GenericsAppendix