April 2009
Beginner to intermediate
308 pages
9h 8m
English
Content preview from XMPP: The Definitive GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Preface
Why XMPP?
In 1800, it took one or two years to send a message from London to Calcutta and receive a reply. You needed to find a ship’s captain you trusted, who piloted his sailing ship around the Cape of Good Hope and probably stopped in various ports along the way. Then your contact in Calcutta needed to write a reply and send it back to London in a similar fashion. Not exactly instant messaging!
With the invention of the steamship and the opening of the Suez Canal, the time was reduced to a month or two. Air mail reduced the time further to a week or two, and eventually to a few days (“when it absolutely, positively has to be there overnight”). The deployment of commercial email systems introduced us to wait times of only a few minutes (depending on how often you polled your server). And instant messaging (IM) systems such as ICQ® took communication to its logical conclusion: nearly immediate interaction.
As a result of these developments, the useful half-life of information has shrunk significantly, in many cases to mere seconds. For many people, IM trumps email. Blogging trumps newspapers and magazines. Microblogging trumps blogging. Groupchat trumps email discussion lists. Shared editing and whiteboarding trump carefully crafted presentations. Immediate notifications trump once-a-day updates. And the list goes on.
What all these technologies have in common is that the interactions happen in close to real time. To make this possible, we need technologies for real-time communication. ...
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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.