From: Ian Macdonald <ian@...>
Date: 2002-04-06T09:22:25+09:00
Subject: how to make SOAP4R read WSDL files?

Hi,

Here at Google, we're about to start offering an API to our
search-engine, so that people can programmatically use Google through
a clean and clearly defined interface, rather than have to resort to
parsing HTML.

As a test, this seemed like a great opportunity to try out SOAP4R.

I'm not knowledgeable about SOAP at all (I've read a couple of
O'Reillynet articles about it), so I'm probably making mistakes in my
basic assumptions. The SOAP4R documentation is also pretty scant.

Anyway, the following short program works:

#!/usr/bin/ruby

require 'soap/driver'

endpoint = 'http://api-ab.google.com/search/beta2'
ns = 'urn:GoogleSearch'
key = 'xxxxxxxxxxxxxxx'
service = 'file:GoogleSearch.wsdl'
query = ARGV.shift || 'foo'

soap = SOAP::Driver.new(nil, nil, ns, endpoint)

# uncomment the next line to dump the traffic on the wire
#
#soap.setWireDumpDev(STDERR)

soap.addMethodWithSOAPAction('doGoogleSearch', ns, 'key', 'q', 'start',
			     'maxResults', 'filter', 'restrict',
			     'safeSearch', 'lr', 'ie', 'oe')
r = soap.doGoogleSearch(key, query, 0, 10, false, nil, false, nil,
			'latin1', 'latin1')

printf "Estimated number of results is %d.\n", r.estimatedTotalResultsCount
printf "Your query took %6f seconds.\n", r.searchTime
--

However, rather than have to spell all of this out in the program, I
would rather just have SOAP4R read Google's WSDL file. Unfortunately,
nothing I've tried so far will make this work. It's not even clear to
me that this is implemented.

So, does anyone know how I can reduce much of the detail in the code
by simply having SOAP4R pull it out of a WSDL file?

Ian
-- 
Ian Macdonald               | But since I knew now that I could hope for 
System Administrator        | nothing of greater value than  frivolous
Google, Inc.                | pleasures, what point was there in denying 
ian@google.com              | myself of them?     -- M. Proust 
650.330.0100 x1265          |