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Mastering Go

You're reading from   Mastering Go Create Golang production applications using network libraries, concurrency, machine learning, and advanced data structures

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Product type Paperback
Published in Aug 2019
Publisher Packt
ISBN-13 9781838559335
Length 798 pages
Edition 2nd Edition
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Author (1):
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Mihalis Tsoukalos Mihalis Tsoukalos
Author Profile Icon Mihalis Tsoukalos
Mihalis Tsoukalos
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Table of Contents (15) Chapters Close

1. Go and the Operating System 2. Understanding Go Internals FREE CHAPTER 3. Working with Basic Go Data Types 4. The Uses of Composite Types 5. How to Enhance Go Code with Data Structures 6. What You Might Not Know About Go Packages and Functions 7. Reflection and Interfaces for All Seasons 8. Telling a UNIX System What to Do 9. Concurrency in Go – Goroutines, Channels, and Pipelines 10. Concurrency in Go – Advanced Topics 11. Code Testing, Optimization, and Profiling 12. The Foundations of Network Programming in Go 13. Network Programming – Building Your Own Servers and Clients 14. Machine Learning in Go 15. Other Books You May Enjoy

Creating a web server in Go

Go allows you to create web servers on your own using some of the functions of its standard library.

Although a web server programmed in Go can do many things efficiently and securely, if what you really need is a powerful web server that will support modules, multiple websites, and virtual hosts, then you would be better off using a web server such as Apache, Nginx or Candy, which is written in Go.

The name of the Go program for this example will be www.go, and it will be presented in five parts. The first part of www.go contains the expected import statements:

package main 
 
import ( 
    "fmt" 
    "net/http" 
    "os" 
    "time" 
) 

The time package is not necessary for a web server to operate. However, it is needed in this case because the server is going to send the time and date to its clients.

The second...

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