September 2023
Intermediate to advanced
367 pages
7h 23m
English
Content preview from Go Cookbook
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Chapter 17. Web Recipes
17.0 Introduction
Web applications are everywhere. Take any software application you use daily, and it is likely a web application. Any programming language that supports developing software that interfaces with human beings will inevitably support developing web applications as well. One of the first libraries and frameworks to be built for any new language is interaction with the internet and the World Wide Web. Go is no different.
A web application is a computer program that responds to an HTTP request by a client and sends back HTML to the client in an HTTP response. In other words, a web application is a server—a web server, to be exact. The client is usually a web browser, and they communicate over HTTP.
A web service, on the other hand, is a computer program that responds to an HTTP request by a client that is not a browser used by a human user but another computer program. A web service is a server as well, but it usually returns JSON, and it increasingly also returns binary formats.
HTTP is the application-level communications protocol that powers the World Wide Web. Everything that you see on a web page is transported through this seemingly simple text-based protocol. HTTP is simple but surprisingly powerful—since its definition in 1990, it has gone through only three iterative changes. HTTP 1.1 is the most widely used version, while HTTP 2 is the current version. HTTP 3 is in the works.
This chapter will explore the Go standard library and the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.