From: Jamis Buck <jamis_buck@...>
Date: 2005-03-01T01:04:12+09:00
Subject: Re: [ANN] Orbjson, a JSON-RPC ORB for JavaScript/Ruby interaction

On 14:01 Mon 28 Feb     , James Britt wrote:
> An initial gem release of Ruby Orbjson is available.  It provides an ORB 
> (object request broker) for facilitating JavaScript/Ruby interaction 
> using JSON-RPC.

Nice work, James! I'm anxious to try this out.

- Jamis

> 
> On the server, services are registered with Orbjson using Needle.  The 
> library provides libs for CGI or WEBrick handlers to process JSON-RPC 
> calls (such as might be sent from a Web browser using the XmlHttpRequest 
> object).
> 
> Orbjson converts the JSON message to a Ruby object (thanks to Florian 
> Frank's code) and locates the appropriate class via Needle (thanks, 
> Jamis).  The method invocation results are serialized to JSON and sent 
> back to the client.
> 
> The gem depends on Jamis Buck's Needle, which rubygems should 
> automagically download if you do not have it, and Florian's gem for 
> ruby-json, which I believe is only hosted on sourceforge.  You will have 
> to install that yourself, as I do not think there is anyway to automate 
> this.
> 
> There are examples in the 'examples/' dir.  You can also run either
> 
>   orbjson create-cgi <dirpath>
> 
> or
> 
>   orbjson create-webrick <dirpath>
> 
> to create skeleton code (vielen dank to Michael Neummann; I pilfered his 
> Wee code-creator source for this part).
> 
> The example client page use the jsonrpc.js script from Jan-Klaas Kollhof 
> and Michael Clark, which is based on Jan-Klaas' JavaScript o lait 
> library (jsolait).  I'm not entirely happy with that code (I'd consider 
> some different design choices for more fluid JavaScript client 
> behavior), but it's good and it works.
> 
> This is a work in progress.  It's pretty straightforward, though.
> 
> Comments and patches welcome. Give it a whirl, see what breaks.
> 
> I'll release a tar/zip version when I get around to assembling an 
> install.rb file; making a gem is so much easier.
> 
> Download:
>   http://rubyforge.org/projects/orbjson/
> 
> or
>   gem install orbjson
> 
> ruby-json:
>   http://cvs.sourceforge.net/viewcvs.py/json/ruby-json/
> 
> JSON (JavaScript Object Notation):
>   http://www.crockford.com/JSON/
> 
> JSON-RPC is like XML-RPC, but with, um, JSON:
>   http://www.json-rpc.org/
> 
> The jsonrpc.js file was snarfed from a Java project:
>   http://oss.metaparadigm.com/jsonrpc/
> 
> 
> James Britt
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 

-- 
Jamis Buck
jamis_buck@byu.edu
http://jamis.jamisbuck.org
------------------------------
"I am Victor of Borge. You will be assimil-nine-ed."