[DUG] Web Services

[Sean Cross - CRM]

The point of web services is that they are language and platform
agonistic.  Therefore you can call a d.n web service from D7 etc.  The
restriction is that the web service must only require parameters and
results that D7 can support.  it is possible to make a .net web service
that only .net can call (thanks ms) but it is as easy to make one that
anything can accept.  You might also want to look at using REST,
http://blog.marcocantu.com/blog/soaprest.html.
 
I believe it is considered bad form to change the spec of existing
functions much as it is in dlls.  You should version them instead.
Adding a new function won't affect existing apps though.

Regards

Sean
-----------------------------
Sean Cross
Systems Development

Catalyst Risk Management
PO Box 230
Napier
Phone:   06 835 5868
Mobile:  027 276 6439
Email:   sean.cross at crm.co.nz 
http://www.crm.co.nz/

Offices in Auckland, Napier, Wellington & Christchurch

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________________________________

	From: delphi-bounces at ns3.123.co.nz
[mailto:delphi-bounces at ns3.123.co.nz] On Behalf Of Jeremy Coulter
	Sent: Friday, 26 May 2006 8:06 a.m.
	To: delphi at delphi.org.nz
	Subject: [DUG] Web Services
	
	
	Hi All.
	We are looking at improving some stuff at work, and web services
will be something I feel will help greatly.
	 
	What  A interested in knowing is, am I correct in understanding
that Delphi 7 can talk to a D2005 .Net webservice?
	 
	If the above understanding is correct, if I make a change to the
web service, then I need to also change the exe calling the webservice?
i.e. if I add  new functon t the webservice, then the caling exe needs
to know abou it etc. etc.
	 
	is this correct?
	 
	 
	Thanks, jeremy


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