get_frob method error when using desktop script

[treble37]

Hi @aseldawy,

I'm trying to write a ruby script that gets some data from oDesk....The documentation calls for using "rd.auth_url" but I think that's only for a web application, not a desktop, correct? For desktops you have to call get_frob first before calling desktop_auth_url if I'm reading correctly...When I do so, I get an error like:

ruby-1.9.3-p374/lib/ruby/1.9.1/rexml/parent.rb:59:in []': can't convert String into Integer (TypeError) from /home/kyle/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/rexml/parent.rb:59:in[]'
from /home/kyle/.rvm/gems/ruby-1.9.3-p374@odesk/gems/ruby_desk-0.9.1/lib/ruby_desk/connector.rb:185:in `get_frob'

I have the API keys setup (dummy keys shown here for security reasons) and am calling it this way in my script:

ODESK_API_KEYS = {:key=>"yyy",:secret=>"zzz"}
rd = RubyDesk::Connector.new(ODESK_API_KEYS[:key], ODESK_API_KEYS[:secret])
p rd.get_frob

The issue is actually in the invoke_api_call(api_call) method in connector.rb. When "https://www.odesk.com/api/auth/v1/keys/frobs.json" is called, the response is code 200 but the data returned is nil.