1. WSDL Specification WSDL = Web Service Description Language Similar to ASN.1 – describes the abstract on the wire data structures Multiple bindings to on the wire representations (not just SOAP) Tool Kits can build client and server stub code from WSDL

2. Messages Note: Query – CQL, Result Set Name, empty for Explain

3. PortTypes

4. HTTP GET Binding

5. HTTP GET Example http://www.server.com/search?query=author%3aSmith &startRecord=0&maximumRecords=10 &responseSchema=zng:RS1&recordSchema=DC

6. SOAP/HTTP POST Binding <soap:body encodingStyle=http://schemas.xmlsoap.org/soap/encoding/http://schemas.xmlsoap.org/soap/encoding/ namespace="urn:z3950:zng_prototype1" use="literal"/> <soap:body encodingStyle=http://schemas.xmlsoap.org/soap/encoding/http://schemas.xmlsoap.org/soap/encoding/ namespace="urn:z3950:zng_prototype1" use="literal"/>

7. SOAP/HTTP Example <SOAP-ENV:Envelope xmlns:SOAP- ENV=http://schemas.xmlsoap.org/soap/envelope/http://schemas.xmlsoap.org/soap/envelope/ xmlns:zng="urn:z3950:zng_prototype1“ SOAP- ENV:encodingStyle="http://schemas.xmlsoap.org/soap/e ncoding/">http://schemas.xmlsoap.org/soap/e ncoding/ Author:Smith 0 10 zng:RS1 ONIX

8. Misc. Encryption (if required) via https (SSL) Authentication via HTTP Authentication

9. Response Actual Response Schema specified in request Schema either requests an XML document (for browser clients) or a SOAP wrapped XML document Default is “RS1”

10. Response Schema RS1 Overview

11. Response Schema RS1 Result Set Reference Note – result set name server generated

12. Response Schema RS1 Records

13. Response Schema RS1 Status

14. Response Schema RS1 Diagnostic Used as non-surrogate in Status structure Used as surrogate in Record structure

15. Response Schema RS1 - Example (SOAP Wrapped) <SOAP-ENV:Envelope xmlns:SOAP-ENV=http://schemas.xmlsoap.org/soap/envelope/http://schemas.xmlsoap.org/soap/envelope/ xmlns:zng="urn:z3950:zng_prototype1“ SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">http://schemas.xmlsoap.org/soap/encoding/ SERVER-GENERATED-NAME 16 Oct 2001 15:00:00 GMT 2 DC Smith A Book zng:diagnostic 2 Record withheld due to Access Control 1 2 Records withheld due to Access Control