Creating and Consuming Web Services in Visual Basic

Get on the fast track of what is becoming a required skill for software developers - the ability to create Web Services and clients that consume them. Web Services leverage standards such as XML, XSD, SOAP, and WSDL to enable interoperability across programming languages and platforms. They work well to integrate applications on an intranet and on the Internet. Visual Basic .NET, coupled with the .NET Framework, is an attractive environment for Web Services architecture because it provides for rapid development and easy maintenance.This book explains each of the standard protocols needed for Web Service interaction on the client or server. These protocols include SOAP, Web Services Description Language (WSDL), and Universal Description Discovery and Integration (UDDI).Creating and Consuming Web Services in Visual BasicR also includes\* Information on how to shape SOAP messages and the data they contain\* Explanations of how to create applications that consume Web Services\* Detailed case studies that explore how to use Web Services to help solve real-world B2B and B2C problems\* Thorough coverage of development concerns such as security and availability\* Instructions for how to create and consume Web services in earlier versions of VB and convert legacy applications to a Web Services platform

Leverage the power of SOAP on any platform, with any leading programming language!

• Integrate your enterprise applications across the Web!
• The platform-independent guide to SOAP
• SOAP programming with C++, Perl, C#, Visual Basic, and Java
• Build an industrial-strength SOAP system from scratch
• CD-ROM: SOAP for Windows, Linux and Unix, plus extensive source code library!

Technical Reviewers: Yves LaFon, Chair of the SOAP W3C Committee
John Montgomery, Lead SOAP Developer, Microsoft
Kent Sharkey, .NET Frameworks Technical Evangelist, Microsoft

SOAP is the universal "glue" that can integrate virtually any distributed system, helping enterprises streamline processes and communications across the Internet as never before. SOAP: Cross Platform Web Services Development Using XML is the practical, hands-on introduction to using SOAP on Windows, Linux, and UNIX platforms, using any of five leading programming languages. Discover how SOAP leverages key Internet standards such as XML and HTTP to solve distributed computing problems that DCOM and CORBA can't! Coverage includes:

• All the XML you need to get started with SOAP
• SOAP's basic syntax: HTTP headers, SOAP payloads, error handling, data types, encoding structures, and more
• Extending SOAP to support heterogeneous and legacy environments
• SOAP programming with C++, C#, Perl, Visual Basic, and Java
• Comparing today's leading SOAP servers

The last six chapters of this book present a start-to-finish SOAP case study application-from requirements and design through coding.

Whether you're constructing Internet applications, integrating existing applications within or between enterprises, or simply evaluating SOAP, this book contains the insights-and practical examples-you're looking for.

CD-ROM INCLUDED

The accompanying CD-ROM contains complete SOAP implementations for Windows, Linux, and UNIX, plus all source code from the book.

The computing industry has developed many methods to allow computers to share resources and applications, to create a distributed computing environment--such as DCOM and CORBA. These are the "glue" of today's distributed computing world.

Discover how to use SOAP to integrate virtually any distributed system, in Windows, Linux, and UNIX environments - with any of five leading programming C++, C#, Perl, Visual Basic, and Java. Cross Platform Web Services Development Using XML covers it all, from basic concepts and techniques, to a six-chapter, industrial-strength case study. This book is an introduction to SOAP and related technologies. It provides the reader with a sample server that will show how to create SOAP server so that all available platforms are covered. This book also provides coverage of how XML, Distributed Computing, C++, Perl, Python, Visual Basic and Java each relate to SOAP. CD-ROM contains: SOAP implementations for Microsoft Windows, Linux, & UNIX -- Source code from text.