require 'opengraph-io'
opengraph = OpenGraphIO.new({app_id: '!!!!YOUR_APP_ID!!!'})
ogData = opengraph.get_site_info('https://github.com')
siteDescription = ogData["hybridGraph"]["description"]
print siteDescription
To get the code above working, create a new directory and change into that directory from the command line (Linux or OSX)
mkdir example & cd example
Next, install the Ruby opengraph-io package
gem install -user-install opengraph-io
Finally, run the script which outputs the hybrid description of the site as gathered by OpenGraph.io
ruby test.rb