From: Maarten Boonen <m44rt3n@...>
Date: 2005-01-10T22:26:21+09:00
Subject: Soap - connecting applications

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Hi,

I made an application in Ruby and want to provide an interface for other 
(local) applications to use it. I tried to use SOAP for this purpose (a 
good choice?) and it works great with a ruby server and ruby client. But 
when i create a C# application to access the ruby server, I can connect 
and execute the ruby method, but the result returned is an empty string. 
(instead of, for instance, the 'hello world' the server sent out).
Does anybody know whether this is because of some incompatibility 
between the message sent and expected by the c# client, or because I 
made an error in my c# code? (which I shamelessly copied and slightly 
adapted from an online tutorial)

I attached the code of a simple ruby soap server offering a method 
'hello(name)', a (working) ruby client, accessing this method, and a c# 
app that sends out a request hello("Robert"), but gets an empty string 
as result.

Any help is very much appreciated.


Regards,

Maarten

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namespace HelloService
{
	using System.Diagnostics;
	using System.Xml.Serialization;
	using System;
	using System.Web.Services;
	using System.Web.Services.Protocols;

	[System.Web.Services.WebServiceBindingAttribute(
		 Name="SuperDuperTest",
		 Namespace="www.superdupertest.com")]

	public class HelloProxy: System.Web.Services.Protocols.SoapHttpClientProtocol
	{
		public HelloProxy()
		{
			this.Url = "http://localhost:9999/";
		}

		[System.Web.Services.Protocols.SoapDocumentMethodAttribute(
			"www.superdupertest.com/hello",
			 RequestNamespace="www.superdupertest.com",
			 ResponseNamespace="www.superdupertest.com",
			 Use=System.Web.Services.Description.SoapBindingUse.Literal, 
			 ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
		public string hello(string name)
		{
			object [] results = this.Invoke("hello",new object[] { name });
			return ((string)(results[0]));
		}

		[STAThread]
		static void Main() 
		{
			HelloProxy service = new HelloProxy();
			Console.WriteLine("--->" + service.hello("Robert") + "<---");
		}
	}
}//End of HelloService Namespace
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#!/usr/bin/env ruby

require 'soap/rpc/driver'

Name = 'SuperDuperTest'
Namespace = 'www.superdupertest.com'

proxy = SOAP::RPC::Driver.new("http://localhost:9999", Namespace)
proxy.add_method('hello','name')

puts proxy.hello('Jos')

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#!/usr/bin/env ruby

require 'soap/rpc/standaloneServer'

$stdout.sync=true

Name = 'SuperDuperTest'
Namespace = 'www.superdupertest.com'

class SuperDuper

	def hello(name)
		puts result = 'Hi, ' + name
		return result
	end
	
end

class SuperServer < SOAP::RPC::StandaloneServer

	def on_init
		sd = SuperDuper.new
		add_method(sd,'hello','name')
	end
end

svr = SuperServer.new(Name, Namespace, '0.0.0.0', 9999)
trap('INT') { svr.shutdown }
svr.start



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