This is an attempt to implement Ext.Direct (see http://www.sencha.com/products/extjs/extdirect for more info)

I wanted to have a library that did not have to many dependencies.

The idea is very simple:

1. add an 'api' and 'router' endpoint to your backend.
   
2. expose your classes.

and you are set

INSTALL

gem install ruby_ext_direct

---

Example:

(For more examples )

A RACK based example

Gemfile

gem 'ruby_ext_direct', :require => 'ext_direct'

web_service.rb

require 'rubygems'
require 'bundler/setup'
require 'rack'
require 'json'

require 'ext_direct'

#Expose all classes in a directory
ExtDirect::Api.expose_all("./exposed_classes")

#Generate a client-side descriptor
map '/api' do
  run Proc.new { |env|
    [200, {'Content-Type' => 'text/json'}, [ExtDirect::Api.to_json]]
  }
end

#Route request to methods
map '/router' do
  run Proc.new { |env|
    result = ''

    req = Rack::Request.new(env)
    if req.post?
      data = env["rack.input"].gets
      result = ExtDirect::Router.route(data)
    end

    [200, {'Content-Type' => 'text/html'}, [result.to_json]]
  }
end

TODO: add documentation
TODO: add rails engine