Preface

The book you are reading right now is Mastering Go, Third Edition, which is all about helping you become a better Go developer! If you have the second edition of Mastering Go, do not throw it away—Go has not changed that much, and the second edition is still useful. However, Mastering Go, Third Edition is better than the second edition in many aspects.

There exist many exciting new topics in this edition, including writing RESTful services, working with the WebSocket protocol, and using GitHub Actions and GitLab Actions for Go projects, as well as an entirely new chapter on generics and the development of lots of practical utilities. Additionally, I tried to make this book smaller than the second edition and structure it in a more natural way to make it both easier and faster to read, especially if you are a busy professional.

I also tried to include the right amount of theory and hands-on content—but, only you, the reader, can tell whether I succeed! Try to do the exercises located at the end of each chapter and do not hesitate to contact me about ways or ideas that can make future editions of this book even better!