December 2001
Intermediate to advanced
264 pages
5h 59m
English
Content preview from Programming Web Services with SOAPBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 7. Web Services in Action
In the previous chapters, we've been building a picture of the technologies and methodologies around SOAP web services. In this chapter, we apply the discussion to the real-world implementation of a SOAP web service. You'll see how SOAP and WSDL are deployed, and also how to draw in other XML technologies to solve problems that SOAP and WSDL do not address.
The service we'll develop is the CodeShare Service Network, a simple set of peer-to-peer web services for sharing application source code. While we develop that code, we'll stop to take a look at security, and how to implement it when SOAP and WSDL don't cover it.
The CodeShare implementation we show here provides a way for people to share source code. We use digital signatures to verify the identity of clients, and keep a central registry of the files people are offering. Rather than a single web service, the CodeShare application comprises a number of different small interfaces, a common web services design. Each interface can be implemented in any language that supports SOAP, and we used a mixture of Perl and Java to demonstrate this. CodeShare is an example of a peer web service. In the peer-to-peer (P2P) model, the Internet isn't viewed as a network of clients accessing the resources of a server. Rather, it's a cooperative network of peers sharing resources equally and evenly. The lines are blurred between the service provider and the service consumer, with no application required to have ...
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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.