How to Convert Hash to Url Query

hash_to_url_query.rb

require "addressable/uri"

class Hash

  def to_url_params
	uri = Addressable::URI.new

	keys.size.times do |i|
	      self[keys[i]] = "#{values[i].to_s}"
	end

	uri.query_values = self
	uri.query
  end

end


my_hash = {:a => "Hello", :b => "World"}
p my_hash.to_url_params
#"a=Hello&b=World"