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beathyate/convert.rb

Created November 27, 2013 04:47
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Convertidor simple
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convert.rb
#!/usr/bin/env ruby
require 'open-uri'
require 'json'
FROM = 'USD'
TO = 'PEN'
URL = "http://rate-exchange.appspot.com/currency?from=#{ FROM }&to=#{ TO }"
open URL do |rates_file|
hash = JSON.parse rates_file.string
puts hash['rate'].to_f * ARGV.first.to_f
end
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