Who needs SOAP

1
Who needs SOAP?

• Teodor Alexandru Pruteanu
• Microsoft Student Consultant
• microsoft_at_infoiasi.ro

2
What happens?

• A seismic shift in Internet programming is
  underway
• Internet access will be built into every type of
  program
• Generic browser only used for generic browsing
• A new model needed to quickly and easily
  communicate with the other applications and
  resources over the Internet

3
Web Services

• Programming the Web
• What is a Web Service?
• A programmable URI
• Expose and/or access a Web Site
• Easy as creating and using an object
• Using SOAP, or less complex protocols

4
SOAP/XML Protocol Status

• Simple Object Access Protocol
• SOAP 1.1 released April 2000
• Accepted as note by W3C May 2000
• XML Protocol activity formed September 2000
• Requirements working draft released December 2000

5
SOAP/XML Protocol Status

• Authors
• Don Box, DevelopMentor
• David Ehnebuske, IBM
• Gopal Kakivaya, Microsoft
• Andrew Layman, Microsoft
• Noah Mendelsohn, Lotus Development Corp.
• Henrik Frystyk Nielsen, Microsoft
• Satish Thatte, Microsoft
• Dave Winer, UserLand Software, Inc.

6
What is SOAP?

• SOAP is a simple, lightweight XML protocol for
  exchanging structured and typed information on
  the Web
• Make it Modular and Extensible
• Overall design goal Keep It Simple
• Can be implemented in a weekend
• Stick to absolutely minimum of functionality

7
SOAP Example
8
SOAP Message Embedded in HTTP Request

• POST /StockQuote HTTP/1.1
• Host www.stockquoteserver.com
• Content-Type text/xml
• Content-Length nnnn
• SOAPMethodName Some-Namespace-URIGetLastTradePri
  ce
• ltSOAPEnvelope xmlnsSOAP"urnschemas-xmlsoap-org
  soap.v1"gt ltSOAPBodygt
• ltmGetLastTradePrice xmlnsm"Some-Namespace-URI
  "gt ltsymbolgtDISlt/symbolgt lt/mGetLastTradePricegt
  
• lt/SOAPBodygt
• lt/SOAPEnvelopegt

9
SOAP Message Embedded in HTTP Response

• HTTP/1.1 200 OK
• Content-Type text/xml
• Content-Length nnnn
• ltSOAPEnvelope xmlnsSOAP"urnschemas-xmlsoap-org
  soap.v1"gt ltSOAPBodygt
• ltmGetLastTradePriceResponse xmlnsm"Some-Names
  pace-URI"gt
• ltreturngt34.5lt/returngt
• lt/mGetLastTradePriceResponsegt
• lt/SOAPBodygt
• lt/SOAPEnvelopegt

10
Questions