Ruby, Savon with WSDL, Nokogiri

A very simple example on how to call a SOAP Web service with Ruby and Savon. The call returns a XML document. Nokogiri helps to extract the data we're interested in.

	#!ruby
	# make sure we use version 2.x of Savon
	gem 'savon', '~> 2.0'
	require 'savon'
	require 'nokogiri'
	# create the client, switch on nice logging
	clnt = Savon.client(
	wsdl: 'http://www.webservicex.net/stockquote.asmx?wsdl',
	log: true,
	log_level: :debug,
	pretty_print_xml: true
	)
	# look up a ticker symbol or use Open Text's NASDAQ
	symbol = ARGV[0] || "OTEX"
	# call the service
	response = clnt.call(:get_quote, message: { symbol: symbol.upcase } )
	result = response.to_hash[:get_quote_response][:get_quote_result]
	# this result is in XML form, let's take it apart
	xml = Nokogiri::XML(result)
	# print a nicely formatted XML document
	print xml.to_xml(:indent => 4)
	# just want to know the last price of the equity
	quote = xml.at_css('Last').text.strip
	d = xml.at_css('Date').text
	t = xml.at_css('Time').text
	# the date comes in US format mm/dd/yy
	date = DateTime.strptime("#{d} #{t}", "%m/%d/%Y %I:%M%p")
	print "Date: ", date.strftime("%d-%b-%Y"), "\n"
	print "Last quote: ", quote, "\n"

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