From: ruby talk <ruby.talk.list@...>
Date: 2005-01-27T06:36:07+09:00
Subject: Any reasonably complete JSON-RPC ORB projects?

Mixed in with the current churn about JavaScript and XmlHttpRequest
stuff is JSON [0] and JSON-RPC [1]. I've done some assorted RPC stuff
with XmlHttpRequest, but the JSON part looks interesting because it
transfers fewer bytes and may make it easier to build "standardized"
browser services in Ruby.  (JSON is JavaScript object notation; like
YAML with C curly-braces instead of Python indentation, and JSON-RPC
is like XML-RPC, but with JSON.)

There is a Java project [2] that seems to do a good job of making the
RPC calls fairly transparent.  The client code fetches a list of
methods from the server, and can then invoke method calls almost as if
it had local references to server objects.  On the server, one can
register objects with some RPC proxy bridge thing so you don't have to
explicitly enumerate what method calls are available to the client.

So, I have some code that steals some ideas from the Java project
(and, in the browser, uses the same jsonrpc.js file), and works quite
well.   Before I get too crazy with this, though, I was wondering if
someone had hadn't already done this (and gotten further than I have).

I've seen two JSON-related Ruby projects; one is a dead-simple JSON
parser [3] (I copped that, too), and the other appears to be an
attempt at Ruby-object JSON serialization, but incomplete[4].

Thanks,

James Britt




[0] http://www.crockford.com/JSON/index.html
[1] http://json-rpc.org/
[2] http://oss.metaparadigm.com/jsonrpc/
[3] http://rubyforge.org/snippet/detail.php?type=snippet&id=29
[4]