Job Ready Go

Tackle GoLang with practical and employment-focused instruction

In Job Ready Go, software education guru Dr. Haythem Balti delivers an essential and hands-on guide to Go, an open-source programming language developed by Google engineers to combine the most sought-after capabilities of other programming languages, including Java, C#, and C++. In the book, the author walks you through all the most critical skills necessary for successful, on-the-job Go programming.

You’ll discover:

• How to get started with Go, including how to run, build, and test your own go programs
• Understand control flow and data structures in Go including arrays, slices, maps, and pointerss
• How to leverage structs, interfaces, and methods to organize and reuse code
• How to leverage go to process data, access different types of files and develop APIs
• Leverage concurrency and gRPCs to create complex and interconnected systems.

Job Ready Go offers readers straightforward and elegant instruction based on the renowned mthree Global Academy and Software Guild training program. It’s an essential read for aspiring Go developers looking for a fast-track to developing real-world skills demanded by employers.

About the Authors v

About the Technical Writer vi

About the Technical Editor vii

Acknowledgments viii

Introduction xxi

Part I: The Basics of the Go Programming Language 1

Lesson 1: Getting Started with Go 3

Lesson 2: Understanding Go Basics 21

Lesson 3: Storing with Variables 39

Lesson 4: Performing Operations 69

Lesson 5: Controlling Program Flow with Conditional Statements 99

Lesson 6: Controlling Program Flow with Loops 123

Lesson 7: Pulling It All Together: Income Tax Calculator 145

Part II: Organizing Code and Data in Go 173

Lesson 8: Using Functions 175

Lesson 9: Accessing Arrays 195

Lesson 10: Working with Pointers 215

Lesson 11: Organizing with Structs 237

Lesson 12: Accessing Slices 263

Lesson 13: Manipulating Maps 287

Lesson 14: Creating Methods 305

Lesson 15: Adding Interfaces 325

Lesson 16: Pulling It All Together: Building a Burger Shop 343

Part III: Creating Job Ready Solutions in Go 377

Lesson 17: Handling Errors 379

Lesson 18: Concurrency 395

Lesson 19: Sorting and Data Processing 421

Lesson 20: File I/O and OS Operations 453

Lesson 21: Pulling It All Together: Word Analysis in Go 485

Part IV: Advanced Topics for Go Development 525

Lesson 22: Testing 527

Lesson 23: API Development Tutorial 561

Lesson 24: Working with gRPC 591

Lesson 25: Pulling It All Together: Using Smart Data 607

Lesson 26: Using Modules 645

Appendix: File Permissions and Access Rights 651

Index 655

HAYTHEM BALTI, PhD, is an associate dean at Wiley Edge. He has created courses used by thousands of Software Guild and Wiley Edge (formerly mthree) alumni to learn Go, Java, Python, and other development and data science skills.

KIMBERLY A. WEISS is a Senior Manager of Curriculum Operations for Wiley Edge. She has worked with multiple universities as well as corporate training settings to develop interactive instructional content appropriate for the target learners and course goals, specializing in software development courses.

PREPARE YOURSELF TO TAKE ON REAL-WORLD GO APPLICATION PROGRAMMING

Job Ready Go^® delivers the foundational knowledge required for entry-level Go-related jobs. Based on the Go training program at Wiley Edge (formerly mthree), this book offers readers the opportunity to learn about most of the powerful concepts that makes Go a very popular programming language.

Job Ready Go^® demonstrates the basics and advanced concepts of Go. Moreover, you will be able to put together what you have learned in this book in the “Pulling It Together” section, which demonstrates how to build complex solutions in Go.

Perfect for Go novices looking to learn about the language, Job Ready Go^® is also useful for Go developers that need to brush up with a comprehensive reference.

The book includes foundational topics such as data types, data structures, exceptions, and structs, and you will also learn about more complex topics such as API development, gRPC, and concurrency.

This practical book also provides:

• A getting started guide on how to install Go, and design, develop, and test Go applications.
• A practical discussion of the basics of data structures such as map, slices, and arrays.
• The fundamentals of gRPC and concurrency
• The basics of designing and developing API in Go.

The companion website at www.wiley.com/go/jobreadygo provides supplemental files to be used by the reader in several lessons found in the book.