Articles

Using REST Channels in Dojo

by Kris ZypNovember 12th, 2008

REST Channels is a Comet protocol for data notifications designed to integrate with a REST architecture. REST Channels leverages the semantics of HTTP messaging and provides notifications of the creation, update, and deletion of resources using REST’s resource identifiers (URI) in order to provide real-time views of data from web clients.

Comet Message Rates

by Greg WilkinsOctober 30th, 2008

Chat rooms have been cited as the “Hello World” application of Ajax Comet because chat is something that everybody can understand and represents a good exemplar of the technology. With my own work, I have frequently used the cometD chat demo as the basis of benchmarking and scalability tests.

Private Messages with cometD Chat

by Greg WilkinsOctober 14th, 2008

One of the common misconceptions regarding cometD, is that it can only do publish-subscribe messaging. While this misconception may be encouraged by the protocol design, it is definitely possible to do private messaging with cometD

Scalable Real-Time Web Architecture, Part 2: A Live Graph with Orbited, MorbidQ, and js.io

by Michael CarterOctober 10th, 2008

This tutorial will show you how to build a simple broadcast application for numerical data and represent that data graphically in the browser. The resulting user interface is very simplistic so that we can focus on the important parts of real-time applications.

Using Bayeux with Persevere

by Kris ZypOctober 9th, 2008

Recently I integrated Jetty’s cometD implementation of Bayeux with Persevere. With this new functionality, Bayeux-based Comet communication can be used to route messages through Persevere’s stored objects.

Scalable Real-Time Web Architecture, Part 1: Stomp, Comet, and Message Queues

by Michael CarterOctober 8th, 2008

Stomp is an incredibly straightforward message queue protocol. Stomp derives its name from an acronym with the same letters that stand for Streaming Text-Oriented Messaging Protocol.

Server-Centric Comet With ItsNat

by Jose Maria ArranzOctober 7th, 2008

In this article we are going to introduce the two different development approaches for Comet, client-centric and server-centric, and how ItsNat, in spite of its server-centric nature, is familiar for any JavaScript developer.

Why Flash must adopt Comet

by Michael CarterSeptember 30th, 2008

I constantly get people saying “Comet, pftt… Flash already has a socket.” I agree with the basic sentiment; I’d rather have a socket than Comet, but I’ve always been uneasy about depending on Flash

Expanding Cross-Site Comet Options

by Kris ZypSeptember 9th, 2008

An important feature of any comprehensive Comet framework is cross-site support. Cross-site capabilities can be particularly beneficial to Comet applications for a couple of reasons.

REST Channels: HTTP Channels with JSON support

by Kris ZypSeptember 2nd, 2008

HTTP Channels is the proposed Comet protocol for leveraging the semantics of HTTP REST for subscribing to resources and receiving resource/data modification notifications and closely integrates with HTTP.


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