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Mastering Go – Third Edition

You're reading from Mastering Go – Third Edition Harness the power of Go to build professional utilities and concurrent servers and services

Product type Paperback

Published in Aug 2021

Publisher Packt

ISBN-13 9781801079310

Length 682 pages

Edition 3rd Edition

Languages

Go

Tools

gRPC

Concepts

Programming Language

Author (1):

Mihalis Tsoukalos

View More author details

Table of Contents (17) Chapters

Preface

1. A Quick Introduction to Go

2. Basic Go Data Types FREE CHAPTER

3. Composite Data Types

4. Reflection and Interfaces

5. Go Packages and Functions

6. Telling a UNIX System What to Do

7. Go Concurrency

8. Building Web Services

9. Working with TCP/IP and WebSocket

10. Working with REST APIs

11. Code Testing and Profiling

12. Working with gRPC

13. Go Generics

14. Other Books You May Enjoy

15. Index

Appendix A – Go Garbage Collector

Reflection

We begin this chapter with reflection, which is an advanced Go feature, not because it is an easy subject but because it is going to help you understand how Go works with different data types, including interfaces, and why they are needed.

You might be wondering how you can find out the names of the fields of a structure at execution time. In such cases, you need to use reflection. Apart from enabling you to print the fields and the values of a structure, reflection also allows you to explore and manipulate unknown structures like the ones created from decoding JSON data.

The two main questions that I asked myself when I was introduced to reflection for the first time were the following:

Why was reflection included in Go?
When should I use reflection?

To answer the first question, reflection allows you to dynamically learn the type of an arbitrary object along with information about its structure. Go provides the reflect package for working...

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Authors (1)

Mihalis Tsoukalos

Mihalis Tsoukalos

Mihalis Tsoukalos holds a BSc in Mathematics from the University of Patras and an MSc in IT from University College London, UK. His books, Go Systems Programming and Mastering Go, have become must-reads for Unix and Linux systems professionals. He enjoys writing technical articles and has written for Sys Admin, MacTech, C/C++ Users Journal, USENIX ;login:, Linux Journal, Linux User and Developer, Linux Format, and Linux Voice. His research interests include time series data mining, time series indexing, and databases.

See other products by Mihalis Tsoukalos

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Related to this chapter

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

This book not only goes into great depth on Go features usually taken for granted, but also explains how to use an improved understanding of Go internals to optimize Go code, use all Go data types and data structures in new and unexpected ways, and understand how to write Go systems projects, do OS-level coding and build Go network applications.

Apr 2018 20h 12m

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