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The Go Workshop

The Go Workshop

By : Delio D'Anna , Andrew Hayes , Sam Hennessy , Jeremy Leasor , Gobin Sougrakpam , Dániel Szabó
4.8 (10)
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The Go Workshop

The Go Workshop

4.8 (10)
By: Delio D'Anna , Andrew Hayes , Sam Hennessy , Jeremy Leasor , Gobin Sougrakpam , Dániel Szabó

Overview of this book

The Go Workshop will take the pain out of learning the Go programming language (also known as Golang). It is designed to teach you to be productive in building real-world software. Presented in an engaging, hands-on way, this book focuses on the features of Go that are used by professionals in their everyday work. Each concept is broken down, clearly explained, and followed up with activities to test your knowledge and build your practical skills. Your first steps will involve mastering Go syntax, working with variables and operators, and using core and complex types to hold data. Moving ahead, you will build your understanding of programming logic and implement Go algorithms to construct useful functions. As you progress, you'll discover how to handle errors, debug code to troubleshoot your applications, and implement polymorphism using interfaces. The later chapters will then teach you how to manage files, connect to a database, work with HTTP servers and REST APIs, and make use of concurrent programming. Throughout this Workshop, you'll work on a series of mini projects, including a shopping cart, a loan calculator, a working hours tracker, a web page counter, a code checker, and a user authentication system. By the end of this book, you'll have the knowledge and confidence to tackle your own ambitious projects with Go.
Table of Contents (21 chapters)
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Preface
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1. Variables and Operators
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2. Logic and Loops
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3. Core Types
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4. Complex Types
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5. Functions
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8. Packages
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9. Basic Debugging
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10. About Time
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11. Encoding and Decoding (JSON)
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12. Files and Systems
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Summary

In this chapter, we studied what JSON is and how we can use Go to store JSON in our structs.

JSON is used by many programming languages including Go. JSON is made up of key-value pairs. These key-value pairs can be any of the following types: string, number, object, array, Boolean, or null.

Go's standard library provides many capabilities that make working with JSON easy. This includes the ability to decode JSON data into structs. It also has the ability to encode structs into JSON.

We have seen that, through the use of JSON tags, we have greater flexibility and control over how the encoding and decoding of JSON occurs. These tags give us the ability to name the JSON key name, ignore fields and not encode them into JSON, and omit fields when they are empty.

The Go standard library gives us the ability to determine how to print in an easy to read format by using the json.MarshalIndent() function. We have also seen how to decode JSON structures when we do not...

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