1. Chapter 1 Introduction to Web Services

   1. History

   2. The Web Services Dream

   3. The Web Services Cold Shower

   4. Who to Believe?

   5. Web Services in the Real World

2. Chapter 2 HTTP and XML Basics

   1. HTTP

   2. XML

   3. XML Schema

3. Chapter 3 Introduction to XML-RPC

   1. History of XML-RPC

   2. Example Client: Meerkat

   3. Limitations of XML-RPC

4. Chapter 4 Programming XML-RPC

   1. Perl Toolkits for XML-RPC

   2. RPC::XMLSimple

   3. XMLRPC::Lite

   4. RPC::XML

5. Chapter 5 Introduction to SOAP

   1. Background

   2. XML Definitions

   3. RPC over SOAP

   4. SOAP Transport

   5. Further Reading

6. Chapter 6 Programming SOAP

   1. A Toolkit Approach

   2. DevelopMentor's SOAP Module

   3. The SOAP::Lite Module

   4. Other SOAP-Related Modules

7. Chapter 7 Serving SOAP over HTTP

   1. Basic SOAP::Lite Servers

   2. The Application

   3. Designing the Server

   4. Tying the Interface Code to SOAP

   5. Improving the Code and the Service

   6. Ideas for Further Exploration

8. Chapter 8 SOAP Services Without HTTP

   1. Choosing a Protocol

   2. Authentication

   3. Transports with Server and Client

   4. Standalone Protocols

   5. Creating New Transport Modules

9. Chapter 9 Service Description with WSDL

   1. Basic WSDL

   2. WSDL Programming

10. Chapter 10 Service Advertising and Discovery with UDDI

    1. Defining UDDI

    2. Programming with UDDI::Lite

11. Chapter 11 REST: Representational State Transfer

    1. Defining REST

    2. REST Principles

    3. Programming REST

12. Chapter 12 Advanced Web Services Topics

    1. Message Routing

    2. Packaging

    3. Security

    4. Services Discovery

    5. Reliable Messaging

    6. Business Process Management

    7. Implementation Considerations

    8. WS-Next

1. Appendix A XML-RPC Toolkit Programming Reference

   1. RPC::XMLSimple

   2. XMLRPC::Lite

   3. RPC::XML

2. Appendix B SOAP::Lite Programming Reference

   1. SOAP::Lite

   2. SOAP Transport Classes

   3. The Apache Wrapper

   4. UDDI::Lite

3. Appendix C XML-RPC Example Code

   1. Basic Meerkat Client (Chapter 3)

   2. XML-RPC Toolkit Samples (Chapter 4)

4. Appendix D SOAP Example Code

   1. HTTP SOAP Code (Chapter 7)

   2. SOAP with Other Protocols (Chapter 8)

5. Appendix E WSDL and UDDI Examples

   1. The wishlist.wsdl File

   2. The useperlorg.wsdl File

   3. The show_biz UDDI Application

6. Appendix F Bibliography and References

   1. Bibliography

   2. Additional Recommended Books

   3. Web Pages

7. Colophon

Our look is the result of reader comments, our own experimentation, and feedback from distribution channels. Distinctive covers complement our distinctive approach to technical topics, breathing personality and life into potentially dry subjects. The animal on the cover of Programming Web Services with Perl is a flying dragon (genus draco). Found in the tropical rainforests of the East Indies and Southern Asia, this small lizard has five or six hind ribs on each side that are prolonged and covered with weblike skin, forming "wings". While jumping, the lizard spreads its wings and glides to the ground; it can generally glide almost nine yards. Gliding is used only as a means of locomotion and not for predator escape; to escape danger, the lizard always climbs. The lizard also never glides when it's raining or windy.

A flying dragon feeds mostly on small ants and termites and is described as a sit-and-wait feeder. It will sit next to a tree trunk waiting for insects to come to it.

A female flying dragon builds a nest for her eggs by forcing her head into the soil to create a small hole. She then lays five eggs into the hole and covers them with dirt, packing the soil on top with a patting motion of her head. The eggs take approximately 32 days to incubate. Humans don't eat flying dragons, and they aren't currently listed as threatened. Mary Anne Weeks Mayo was the production editor and proofreader, and Sarah Jane Shangraw was the copyeditor for Programming Web Services with Perl. Colleen Gorman and Jane Ellin provided quality control. Ellen McHale provided production assistance. Lucie Haskins wrote the index.

Pam Spremulli designed the cover of this book, based on a series design by Edie Freedman. The cover image is a 19th-century engraving from the Dover Pictorial Archive. Emma Colby produced the cover layout with QuarkXPress 4.1 using Adobe's ITC Garamond font.

David Futato designed the interior layout. This book was converted to FrameMaker 5.5.6 with a format conversion tool created by Erik Ray, Jason McIntosh, Neil Walls, and Mike Sierra that uses Perl and XML technologies. The text font is Linotype Birka; the heading font is Adobe Myriad Condensed; and the code font is Lucas-Font's TheSans Mono Condensed. The illustrations that appear in the book were produced by Robert Romano and Jessamyn Read using Macromedia FreeHand 9 and Adobe Photoshop 6. The tip and warning icons were drawn by Christopher Bing. This colophon was compiled by Mary Anne Weeks Mayo.