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Paperback. Pub Date: 2001 Pages: 240 Publisher: OReilly Media Have you ever needed to share Processing between two or more Computers Running Programs Written in Different languages ??on different operating systems or have you ever wanted to publish information on the Web so that programs other than owsers could worProgramming Web Services with XML-RPC explains how to use XML over HTTP to build distributed applications. This of course is the realm of SOAP (Simple Object Access Protocol), which is an evolving W3C standard. XML-RPC is not SOAP, although the two have a common ancestry. XML-RPC has fewer features than SOAP, and is procedural rather than object-orientated. On the plus side, it is a stable, practical and easy-to-use standard.
After a couple of chapters introducing XML-RPC, this short book gets straight down to the nitty-gritty of implementing solutions in a variety of languages. There is a chapter each on Java, Perl, PHP, Python, and ASP (Active Server Pages). Each chapter explains where to find XML-RPC libraries, and how to create both client and server applications, complete with snippets of example code. Although few readers will be working with all these technologies, the diversity demonstrates how effectively XML-RPC bridges different languages and platforms. By way of illustration, one of the ASP examples shows how to talk to Microsoft Access from Linux, a common real-world problem in mixed-platform environments.
The closing chapter gives the wider picture, showing where to find public XML-RPC services, offering design tips, and explaining how to choose between XML-RPC and SOAP. There is an appendix covering XML basics, and a second one offering a brief introduction to HTTP. For anyone who has looked at SOAP and found it bewilderingly complex, XML-RPC and this book could well be the answer. —Tim Anderson