This book will help you learn Go programming language by solving problems developers commonly face using a recipe approach. You will start by installing Go binaries and become familiar with the tools needed to develop applications. Then you will manipulate strings and use them in built-in constructions and built-in function constructs to create a complex value from two floating-point values. After that, you will learn how to perform arithmetic operations with date and time along with parsing them from string values.
Whether you are an expert programmer or a fresh starter, you will learn how various solutions are programmed in Go, which will take you to the next level in your mastery of Go. These recipes range from concurrency in Go, performing various web programming tasks, doing system programming, reading and writing files, and many fundamental Go programming skills such as proper error handling and doing logging.
This book caters to software developers who are interested in learning the Go language, and programmers who want to move forward with practical code examples.
Chapter 1, Getting Started with Go, addresses the most common problems that new Go developers, as well as people working with other languages, face in their daily programming.
Chapter 2, Manipulating String Values, contains some recipes for manipulating string values, such as trimming spaces from beginning and end of a string, extracting sub-strings, replacing parts of a string, escaping characters in a string value, and capitalizing string values.
Chapter 3, Type Conversions, takes you through some practical examples to show you how to convert one type into another effortlessly.
Chapter 4, Date and Time, explains how to work with dates and times in the Go programming language.
Chapter 5, Maps and Arrays, covers how to work with maps and arrays in Go.
Chapter 6, Errors and Logging, discusses how to deal with errors and return an error when you need to.
Chapter 7, Files and Directories, provides recipes for working with files and directories in Go.
Chapter 8, Concurrency, explains how to make use of concurrency constructs in the Go language.
Chapter 9, System Programming, covers how to process command-line arguments using Go.
Chapter 10, Web Programming, contains effective recipes that will involve interactions with the internet, such as downloading a web page, creating our own sample web servers, and handling HTTP requests.
Chapter 11, Relational Databases, explains how to read, update, delete, and create data on relational databases with Go.
To follow this book with ease, it is advised that the reader should have sound knowledge of how to develop software. The readers should have basic programming language knowledge, along with an overview of the Go language. You will learn more about the GoLand IDE, which is used throughout the book.
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There are a number of text conventions used throughout this book.
CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "I'm going to use the touch commandto create the main.go file."
A block of code is set as follows:
package main
import "fmt"
func main(){
fmt.Println(a:"Hello World")
}Any command-line input or output is written as follows:
$go run main.goBold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "You can just run it and keep clicking Continue until the installation is complete."
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