advanced seaside

AdvancedESUG 2012 Ghent

Aug 30, 2012

Thursday, August 30, 12

Seaside 2.x

Seaside

Thursday, August 30, 12

Seaside 3.x

Core

SessionComponent

Javascript

JQuery

Thursday, August 30, 12

What is Seaside-Core

• “Seaside Meta”

• Web Framework Framework

• HTTP Abstraction

• Servlet API

• Rack

• WSGI

Thursday, August 30, 12

Why Seaside-Core

• portable (dialect and server)

• battle tested

• objects, not strings

• familiar objects

• negligible overhead

Thursday, August 30, 12

Seaside 3.x

Core

Component

Thursday, August 30, 12

Seaside 3.x

Core

Component REST

Thursday, August 30, 12

Seaside 3.x

Core

Component REST …

Thursday, August 30, 12

WARequestHandler

RH

Request

Response

Thursday, August 30, 12

WARequestHandler

RH RH RH

/esug /2012/conferences

Thursday, August 30, 12

WARequestFilter

RH

Thursday, August 30, 12

WASession 2.8

• current request

• jump to

• last continuation

• continuations

• monitor

• …

Thursday, August 30, 12

WASession 3.x

• continuations

• properties

• (document handlers)

Thursday, August 30, 12

WARequestContext

• request

• response

• handler stack

Thursday, August 30, 12

Request Handler Stack

1 2 3

1

2

1

2

1

3

Thursday, August 30, 12

WAPathConsumer

RH RH RH

/conferences/esug/2012/…

/esug/2012/… /2012/… /…

Thursday, August 30, 12

WADispatcher

‘conferences’ -> aRequestHandler ‘sponsors’ -> aRequestHandler ‘…’ -> aRequestHanlder

Thursday, August 30, 12

WASeverAdapter

SAWARequest

WARespone

RHXXRequest

XXRespone

provides template methods for convertingprovides start and stop hooksprovides easy integration with server manager UIyou don’t have to use itsets up request context

WARequestContext

Thursday, August 30, 12

Franka micro framework inspired by Sinatra

Thursday, August 30, 12

Seaside-REST

Thursday, August 30, 12

Disclaimer

• REST in this context simply means “pretty URLs”

• pretty URLs for web services, not web applications

• this will feel a little weird

Thursday, August 30, 12

index <get> ^ ‘Hello World’

Thursday, August 30, 12

index <get> <path: ‘index.html’> ^ ‘Hello World’

Thursday, August 30, 12

indexHtml <get> <path: ‘index’> <produces: ‘text/html’> ^ ‘<h1>Hello World</h1>’

Accept: text/html

Thursday, August 30, 12

indexXml <get> <path: ‘index’> <produces: ‘text/xml’> ^ ‘<hello><world/></hello>’

Accept: text/xml

Thursday, August 30, 12

uploadXml <post> <consumes: ‘text/xml’> …

Content-Type: text/xml

Thursday, August 30, 12

uploadCsv <post> <consumes: ‘text/csv’> …

Content-Type: text/csv

Thursday, August 30, 12

getAllStartingAt: start limit: limit named: name <get> <path: ‘/{name}/_all_docs?start={start}&limit={limit}’> ...

Thursday, August 30, 12

#shouldCacheRoutes

Thursday, August 30, 12

WARestfulComponentFilter

count: count <get> <path: '/{count}'> self startSessionWithRoot: (WACounter new count: count greaseInteger; yourself)

Thursday, August 30, 12

Data Binding

• XML or JSON canvas

• Magritte-XML

• Magritte-JSON

Thursday, August 30, 12

Dialects

• GemStone

• Pharo

• VAST

Thursday, August 30, 12

Seaside 3.1

Thursday, August 30, 12

Session Tracking Fully Customizable

• query fields

• cookie only

• cookie if supported, query field otherwise

• cookie for browser, IP for crawler

• SSL session id (*)

• path parameter (*)

Thursday, August 30, 12

Path Parameter

• /;_s=KAAWl0x3c6KLnN6Q

• doesn’t need to be hidden form parameter

• required by some load balancers

Thursday, August 30, 12

WAMain gone

• specify initial continuation

• subclass WASessionContinuation if you used to subclass WAMain

Thursday, August 30, 12

WAPluggableActionContinuation

• replace WAActionPhaseContinuation subclasses with WACallbackProcessingActionContinuation subclasses

Thursday, August 30, 12

JSON

• separate from JavaScript

• various subtle bugs fixed

• canvas API

Thursday, August 30, 12

Streaming Redone

• on demand flushing

• continuation that flushes after rendering </head>

• better portability to other servers

Thursday, August 30, 12

HTML 5

•#multipleValuesCallback:

Thursday, August 30, 12

Document Handlers

• stored in session

• no longer stored alongside sessions

• _d

Thursday, August 30, 12

Other News

• Nick now part of core team

• experimental Pharo 2.0 support

• walkback should open at correct place in VW

• platforms can implement optimized HTML escaping

Thursday, August 30, 12

Help Wanted

• Morphic Control panel for Pharo 2.0

Thursday, August 30, 12

Seaside Sprint

• Friday at Vooruit

• Saturday at Camp location

• (Sunday)

Thursday, August 30, 12

Seaside Sprint Sponsors

• Reza Razavi

• 2Rivers

Thursday, August 30, 12

Links

• https://github.com/marschall/esug-2012-presentation

• http://ss3.gemstone.com/ss/frank

• http://code.google.com/p/seaside/wiki/Seaside310Changelog

• http://book.seaside.st/book/advanced/restful

• http://code.google.com/p/seaside/wiki/SeasideRest

Thursday, August 30, 12