August 2003
Intermediate to advanced
304 pages
7h 33m
English
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Program AWS with SOAP and VB.NET
VB.NET was made for Web Services. With some WSDL magic, much of the code is generated for you.
This little application isn’t particularly fascinating, but the code here can be used as a foundation for more complex VB.NET applications that use Amazon Web Services. The basic methods of creating a SOAP proxy and the syntax for making the request can be used no matter how simple or complex the application.
WSDL (Web Service Description Language) files can allow Web Services to describe what features and functions are available. Software can examine the WSDL file and automatically generate the code necessary to access it. This is exactly what the .NET framework can do. By supplying the Amazon Web Services WSDL file, much of the work is done for you!
What You Need
First, make sure you have the .NET framework and the .NET SDK, both freely available at http://msdn.microsoft.com/library/default.asp?url=/downloads/list/netdevframework.asp. You could also create the program in Visual Studio if you have it available, but it’s not necessary.
Next, create the SOAP client proxy. The wsdl.exe program examines a WSDL file and generates the code to create the class. You run it on the command line like this, providing the latest WSDL file:
wsdl.exe /l:vb http://soap.amazon.com/schemas2/AmazonWebServices.wsdlThis creates the file AmazonWebServices.vb .
Tip
To get a sense of what this program is working with, bring up the WSDL file in a browser. You’ll see definitions for ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.