A webservice emulator in

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Lynette Farmer
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1 A webservice emulator in

2 SOAP webservices? A webservice emulator in exist - XML Prague

3 Can you do webservices in exist in straight XQuery? Yes! It s quite simple A webservice emulator in exist - XML Prague

4 Erik Siegel About me Specialized in: XML (related) design, schemas, documentation Transformations, conversions Design of (SOAP) interfaces XML related training XML applications A webservice emulator in exist - XML Prague

5 A webservice emulator in exist - XML Prague

6 The client: Kennisnet IT Support for primary and secondary schools Government funded Activity: Standardization to ensure interoperability between systems involved A webservice emulator in exist - XML Prague

7 Passing assessment results School Administration system Pupil adminstration Assessment results Get pupils List of pupils Assessment System (Vendor X) (Vendor Y) Assessment results Ok A webservice emulator in exist - XML Prague

8 The result: A vocabulary and webservice definitions A webservice emulator in exist - XML Prague

9 The question: Support us! A webservice emulator in exist - XML Prague

10 A webservice emulator in exist - XML Prague

11 What are soap webservices? XML message exchange Predefined XML envelope (in a tiny nutshell) Message content defined by a schema of your own XML Envelope XML Message A webservice emulator in exist - XML Prague

12 Testing a webservice server In our case: The administration system You need a flexible client Send out all kinds of messages Tool: SoapUI Implementation: SoapUI scripts A webservice emulator in exist - XML Prague

13 Testing a webservice client In our case: The assessment system Emulate the server Check the contents Return all kinds of responses: Small, big and huge datasets Valid, invalid and not well-formed Borderline cases Implementation: exist application A webservice emulator in exist - XML Prague

14 Demo time! SoapUI (emulating an assessment system) Request Response Webservice emulator (emulating an administration system) A webservice emulator in exist - XML Prague

15 A webservice emulator in exist - XML Prague

16 User specific data: User: Erik User: Erik IP: User: Erik IP: Response: IP: UPDATE Response: UPDATE Response: UPDATE Global lookup table ResponseAction ID= UPDATE > </ResponseAction> Lookup user by IP Request Get data and IP Validate Ok Generate response Generate fault Response A webservice emulator in exist - XML Prague

17 1: Catch the request! Set up an XQuery for the endpoint URL REST URL rewriting RestXQ A webservice emulator in exist - XML Prague

18 2: Get the body data let $request-data as item()? := request:get-data() if ($request-data instance of document-node()) then (: Ok, well-formed XML :) else (: No XML at all! :) A webservice emulator in exist - XML Prague

19 3: Determine IP address let $ip-address := request:get-remote-host() let $header-forwarded-ip as xs:string? := request:get-header('x-forwarded-for') return if (string($header-forwarded-ip) eq '') then request:get-remote-host() else $header-forwarded-ip A webservice emulator in exist - XML Prague

20 4: Validate the request 1 let $validate-result as element() := validation:jaxv-report($request-data, $xsd) let $request-valid as xs:boolean := (string($validate-result//status[1]) eq 'valid') But which XSD? A webservice emulator in exist - XML Prague

21 4: Validate the request 1 the XSD Original SOAP XSD (adapted) Request XSD Envelope Include A webservice emulator in exist - XML Prague

22 5: Validate the request 2 Additional checks... by XSLT! let $check-result as element() := transform:transform($request-data, $check-xsl, ()) return if (string($check-result/@errorcode) ne ) then (: Error :) else (: Ok! :) Why by XSLT? My home language Easily made table-driven A webservice emulator in exist - XML Prague

Table driven: 6: Generate result Direct: <ResponseAction id="uptodate" name="up to date"> <leerlinggegevensantwoord> <geenwijzigingen/> </leerlinggegevensantwoord> </ResponseAction>

23 Table driven: 6: Generate result Direct: <ResponseAction id="uptodate" name="up to date"> <leerlinggegevensantwoord> <geenwijzigingen/> </leerlinggegevensantwoord> </ResponseAction> Generated: <ResponseAction id= HUGEOUTPUT" name= Lots of data generator= generate-lots-of-data > some XML as input for generator </ResponseAction> A webservice emulator in exist - XML Prague

24 7: Generate response A webservice emulator in exist - XML Prague

25 Conclusion Possible to do webservices in straight XQuery It s simple But the details make it hard If you need to test webservices: Use SoapUI A webservice emulator in exist - XML Prague

26 Information? mailto: A webservice emulator in exist - XML Prague

XSpec Users Meetup. hosted by. Sandro Cirulli Alex Jitianu Christophe Marchand Matthieu Ricaud-Dussarget. XML Prague 2018

XSpec Users Meetup. hosted by. Sandro Cirulli Alex Jitianu Christophe Marchand Matthieu Ricaud-Dussarget. XML Prague 2018 XSpec Users Meetup hosted by Sandro Cirulli Alex Jitianu Christophe Marchand Matthieu Ricaud-Dussarget XML Prague 2018 XSpec Users Meetup XML Prague 2018 1 / 23 Content 1 Overview of XSpec 2 XSpec 101