controller.rb

def create   

   @user = User.new(params[:user])


     a = "https://www.example.com"      

    url = URI.parse(a)
       http = Net::HTTP.new( url.host, url.port )
       http.use_ssl = true if url.port == 443
       http.verify_mode = OpenSSL::SSL::VERIFY_NONE if url.port == 443
       path =  url.path + "?" + "request_query"
       res, data = http.get( path ) 

      case res
            when Net::HTTPSuccess, Net::HTTPRedirection
                @doc = Nokogiri::XML(data)




           @doc.xpath('/status/success').each do |oop|
              @ee = oop.content
             end



          if @ee.nil?
            @doc.xpath('/status/error').each do |link|  
                 @status = link.content
                  end  
            flash[:notice] = @status
            render "new"

            else 
              flash[:notice] = @ee
              redirect_to "/"   
                 end


    end

end