Read e-book online XMPP: The Definitive Guide: Building Real-Time Applications PDF

By Peter Saint-Andre, Kevin Smith, Remko Tronçon

ISBN-10: 059652126X

ISBN-13: 9780596521264

This functional ebook offers every little thing you must learn about the Extensible Messaging and Presence Protocol (XMPP). This open know-how for real-time verbal exchange is utilized in many various purposes reminiscent of rapid messaging, Voice over IP, real-time collaboration, social networking, microblogging, light-weight middleware, cloud computing, and extra.

XMPP: The Definitive Guide walks you thru the concept approaches and layout judgements considering development an entire XMPP-enabled software, and including real-time interfaces to current functions. you will not just research uncomplicated but robust XMPP instruments, yet you will additionally become aware of, via real-world developer tales, how universal XMPP "building blocks" may also help remedy specific periods of difficulties.

With this e-book, you will:

  • Learn the fundamentals of XMPP applied sciences, together with architectural concerns, addressing, and communique primitives
  • Understand the terminology of XMPP and know about the wealth of XMPP servers, consumers, and code libraries
  • Become conversant in the XMPP recommendations and prone you want to clear up universal problems
  • Construct an entire company software or real-time carrier with XMPP

Every day, extra software program builders and repair services are utilizing XMPP for real-time purposes, and with the aid of XMPP: The Definitive Guide, you could, too.

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Read Online or Download XMPP: The Definitive Guide: Building Real-Time Applications with Jabber Technologies PDF

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Additional info for XMPP: The Definitive Guide: Building Real-Time Applications with Jabber Technologies

Sample text

We delve into these details in Chapter 3. IQ The Info/Query (or IQ) stanza provides a structure for request-response interactions and simple workflows, similar to the GET, POST, and PUT methods that you may be familiar with from HTTP. Unlike the stanza, an IQ stanza can include only one payload, which defines the request to be processed or action to be taken by the recipient. In addition, the entity that sends an IQ stanza must always receive a reply (usually generated by the intended recipient or the recipient’s server).

Lit" type="get"> The server ignores the from address on the roster request, because it always delivers the roster to the entity that requested it (for security reasons, you can’t request someone else’s roster). The to address on the roster request is the bare JID of the user. This means that the server handles the request on behalf of the user’s account. Equivalently, the sender could include no to address at all, since no to address is treated the same as a to address of the sending user.

By contrast, in XMPP your client can “pipeline” requests to your server or to other entities and then receive replies as they come back. , when one of your devices adds an item to your roster, the item is pushed out to all of your devices so that they stay in sync). This rapid-fire, event-driven approach can be confusing at first to developers who are more accustomed to traditional web development, but it has a number of advantages, such as real-time notifications and the ability to work around the need to continually poll for updated information.

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XMPP: The Definitive Guide: Building Real-Time Applications with Jabber Technologies by Peter Saint-Andre, Kevin Smith, Remko Tronçon


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