Node Roundup: 0.5.10 and 0.6, MCMS, EventStream, RSS Tutorial

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at 2011-10-26 07:00:00

original http://feedproxy.google.com/~r/dailyjs/~3/h987OlfmwzM/node-roundup

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0.5.10 and 0.6

Node 0.5.10 has been released. This version changes the build system, adds performance improvements, and it looks like there’s been a lot of documentation improvements.

Node 0.6 was also formally announced on the official Node blog:

The API changes between v0.4.12 and v0.5.10 are 99% cosmetic, minor, and easy to fix. Most people are able to migrate their code in 10 minutes. Don’t fear.

Sounds good to me!

MCMS

MCMS (npm: mcms, License: MIT) by Oleg Podsechin is a content management system built with Common Node. Actually, Common Node is just part of the story:

By being built on top of the CommonJS Filesystem/A and JSGI 0.3 specs, it runs on multiple server side JavaScript platforms, such as Node.js (via Common Node) and RingoJS.

Oleg has provided installation instructions for both Node and RingoJS.

MCMS is more like a static site generator than a traditional CMS, and serves as an interesting example of how to build something using Common Node while still being able to deploy to other CommonJS-compatible environments.

EventStream

Streams are like Arrays, but laid out in time, rather than in memory.

EventStream (npm: event-stream) by Dominic Tarr is a library for manipulating “through streams”, which is the author’s terms for streams that are both readable and writable:

// pretty.js

if (!module.parent) {
  var es = require('event-stream');

  es.connect(                          // connect streams together with `pipe`
    process.openStdin(),               // open stdin
    es.split(),                        // split stream to break on newlines
    es.map(function(data, callback) { // turn this async function into a stream
      callback(null
        , inspect(JSON.parse(data)))   // render it nicely
    }),
    process.stdout                     // pipe it to stdout!
  );
}

// On the terminal:
// curl -sS registry.npmjs.org/event-stream | node pretty.js

The library provides many interesting ways to enhance native objects and functions with streams. The author has even created a list of compatible Node modules, which includes popular modules like sax-js and request.

RSS with NodeJS and Socket.IO

French-speaking readers may appreciate RSS with NodeJS Socket.IO and Express which is a full tutorial on how to build an RSS reader with Express and Socket.IO. I had a go at reading it with Google Translate, and I was able to follow it (for the most part).

Google Reader