5. Service Oriented Architecture on the Web Web Service Provider CS Web Client Web Client Desktop Client Methods Methods Methods

13. The post-ORM realm

15. JSON Referencing Example { “ name”:”Kris Zyp”, “id”:”kriszyp”, “ children”:[ {“id”:”jennikazyp”,“name”:”Jennika Zyp”} ], “ spouse”:{ “ name”:”Nicole Zyp”, “ spouse”:{“$ref”:”kriszyp”}, “ children”:[ {“$ref”:”jennikazyp”} ] } } }

16. JSON Referencing Example (Fragments and Remote) { “ name”:”Kris Zyp”, “ children”:[ {“name”:”Jennika Zyp”} ], “ spouse”:{“name”:”Nicole Zyp”, “ spouse”:{“$ref”:”#”}, “ children”:{“$ref”:”#children”}}, “ friends”:[ {“$ref”:” http://anothersite.com/jesse ”} ] }

17. Dojo Data

23. JSON Schema schema: { "description":"A person", "type":"object", "properties": { "name": {"type":"string"}, "age" : {"type":"integer","maximum":125} } } instance: { “ name”: ”Kris”, “ age”: 30 }

24. JSON Schema Schema: { "description":"A person", "type":"object", "properties":{ "name": {"type":"string"}, "age": { "type":["integer",”string”], “ friends”: { “ type”:”array”, “ items”:{“type”:”object”} } } } } instance: { “ name”:”Kris”, “ age”:”old”, “ friends”:[{“name”:”Nikki”}] }

25. JSON Schema Schema: { “ id”:”marriedperson”, "description":"A married person", "extends": {“$ref”:”marriedperson”}, "properties": {"spouse": {"$ref":"marriedperson"}} } instance: { “ name”:”Kris”, “ age”:”old”, “ friends”:[{“name”:”Bill”}], “ spouse”:{$”ref”:”nikki”} }

27. JSON Schema based evolutionary schema Start without a schema Add constraints as application evolves

28. JSON Schema driven UI Start with schema http://javascript.neyric.com/inputex/examples/json-schema2.html http://javascript.neyric.com/inputex/examples/base-schema.js

30. Server side JavaScript + web storage http://sitepen.com/labs/persevere.php "schema":{ “ name”:”Friend”, “ properties”:{ “ firstName”:{“type”:”string”}, “age”:{“type”:”integer”}, } "staticCreateMethod":function(arg1){ var friend = new Friend(); friend.age = 0; }, "prototype":{ “ myMethod”:function(){ return this.firstName + ‘ ‘ + this.lastName; } } "extends":{"$ref":"../Person"} }

35. JSONPath http://goessner.net/articles/JsonPath/ XPath like query language for JSON Filters - [?expr] Properties/paths (like JS) - .prop Recursive descent - ..prop Slice operator – [3:10:2] Union operator - [3,4,5]

36. JSONPath querying in requests JSONPath + REST URLs = Web querying /Table/ - All the objects in a table /Table/[?@.price < 10] – all items with a price under $10 /Table/..name – A list of the name property values /Table/.length – A count of the items in the table

37. JSONQuery http://www.sitepen.com/blog/2008/07/16/jsonquery-data-querying-beyond-jsonpath/ Lenient Syntax - ?price<10 Sorting - [/price, ating] Mapping - [=firstName+' '+lastName] Wildcarding [?description='*fun*'] Recursive object filter - ..[?name='Bar'] Example URL: /Table/[?price<10] [={name:name, rating: rating}] [ating]

40. Live Data Notifications with REST Channels http://cometdaily.com/2008/05/13/http-channels-2/

42. HTTP Channels (REST Channels over HTTP) HTTP/1.1 200 OK X-Event: PUT Content-Location: /foo/bar New content of /foo/bar

43. REST Channels in JSON Accompanied by Demo { “ event”: “put” “ source”: “/foo/bar” “ content”: “New content of /foo/bar” }

47. Transactions

52. REST/ Ajax databases Develop for the future

53. The Open Web is more than just licensing GPL LGPL BSD