lightweight SOA with web widgets

lightweight SOA with web widgets Phillip Calçado http://fragmental.tw

SOAP/WS-* vs. REST

X SOAP/WS-* vs. REST

15 tv channels 8 radio stations 19 magazines & newspapers 500+ web sites

800 videos 900,000 visits every day

previous architecture

pretty picture Corporate Database video.globo.com Media Encoder xyz.globo.com Media Encoder Media Encoder Media Encoder Media Encoder Internet Movie Sound Picture

real world Media Encoder SQL Corporate xyz.globo.com Database SQL SQL SOAP SQL SQL HTML video.globo.com SOAP HTML Internet Media Transfer Protocol

two main problems

1) audio and video production 2) integration with other sites

1) audio and video production

Media Encoder Corporate Database video.globo.com

Media Encoder Corporate Database Media Encoder video.globo.com

multiple Media Encoder Corporate instances Database Media Encoder video.globo.com managed by different companies with different interests and schedules

Media Encoder Corporate Database v1.0 Media Encoder video.globo.com v1.1.1

multiple Media Encoder Corporate Database versions v1.0 Media Encoder video.globo.com hard to know who is using what v1.1.1

2) integration with other sites

Media Encoder Corporate xyz.globo.com Database video.globo.com

main Corporate integration Database point

xyz.globo.com Corporate Table C Table B xyz.globo.com DatabaseTable D Table A xyz.globo.com xyz.globo.com video.globo.com

X xyz.globo.com Corporate Table C Table B xyz.globo.com DatabaseTable D Table A xyz.globo.com xyz.globo.com video.globo.com

xyz.globo.com Corporate View C Table B xyz.globo.com DatabaseTable D Table A xyz.globo.com xyz.globo.com video.globo.com

xyz.globo.com Corporate View C View B xyz.globo.com Table E Table F Database View D View A xyz.globo.com xyz.globo.com video.globo.com

no contracts xyz.globo.com Corporate View C View B xyz.globo.com Table E Table F Database View D View A xyz.globo.com just get what you want xyz.globo.com from my tables video.globo.com

Corporate Database Ratings Ratings Video Show Video Show xyz.globo.com video.globo.com Internet

Corporate Database Ratings Ratings Video Show Video Show same logic xyz.globo.com video.globo.com Internet

40% code Corporate Database duplication Ratings Ratings Video Show Video Show same logic xyz.globo.com video.globo.com among different systems developed by different people Internet

the new architecture

pretty picture Corporate Database video.globo.com Media Encoder xyz.globo.com Media Encoder Media Encoder Media Encoder Media Encoder Internet Movie Sound Picture

pretty picture Media Services video.globo.com Media Encoder xyz.globo.com Media Encoder Media Encoder Media Encoder Media Encoder Internet Movie Sound Picture

real world Media Encoder HTTP Media xyz.globo.com Services HTTP HTTP SOAP HTML video.globo.com HTML Internet Media Transfer Protocol

1) audio and video production

multiple multiple Media Encoder + Corporate instances versions Database v1.0 Media Encoder video.globo.com v1.1.1

multiple multiple Media Encoder + Corporate instances versions Database v1.0 versioned Media Encoder video.globo.com services v1.1.1

Media Encoder http://mediaservices/v1/media/135 Corporate Database v1.0 http://mediaservices/v2/media/135 Media Encoder http://mediaservices/v3/media/135 video.globo.com v1.1.1

Media Encoder Corporate Database v1.0 Media Encoder video.globo.com v1.1.1

HTTP Media Encoder POST media/v1.0 v1.0 Media Services Media Encoder HTTP POST media/v1.1.1 v1.1.1

2) integration with other sites

no code + contracts duplication xyz.globo.com Corporate View C View B xyz.globo.com Table E Table F Database View D View A xyz.globo.com xyz.globo.com video.globo.com

no code + contracts duplication xyz.globo.com Corporate View C View B xyz.globo.com Table E Table F Database View D View A web sites as xyz.globo.com xyz.globo.com service clientsvideo.globo.com

Corporate Database Ratings Ratings Video Show Video Show same logic xyz.globo.com video.globo.com Internet

Media Services Ratings logic Video Show xyz.globo.com video.globo.com Internet

Code Duplication 40% 35% 30% 25% 20% 15% 10% 5% 0% Database Integration Web Services

evolving

<set> <set> <video id=quot;1quot;/> <video id=quot;1quot;/> xml <video id=quot;2quot;/> <video id=quot;2quot;/> <video id=quot;3quot;/> <video id=quot;3quot;/> </set> </set> ? xyz.globo.com video.globo.com <div> <div> <h2>video title</h2> <h2>video title</h2> html <p>description <p>description description</p> description</p> </div> </div>

<set> <video id=quot;1quot;/> json/xml <video id=quot;2quot;/> <video id=quot;3quot;/> </set> JavaScript Widgets <div> <h2>video title</h2> html <p>description description</p> </div>

real world Media xyz.globo.com Services HTTP HTTP HTML video.globo.com HTML Internet

real world Media xyz.globo.com Services JavaScript HTTP Widgets HTML video.globo.com JavaScript Internet

Code Duplication 40% 35% 30% 25% 20% 15% 10% 5% 0% Database Integration Web Services

Code Duplication 40% 35% 30% 25% 20% 15% 10% 5% 0% Database Integration Web Services Widgets API

some problems • managing Service Versioning is still hard, keep just the previous version and only if needed • URI versioning can be problematic, we made it optional and added an http header • it’s very hard to be fully RESTful, be pragmatic • strong primitives are flexible

Thank you! Phillip Calçado http://fragmental.tw

This work is licensed under a Creative Commons Attribution-Share Alike 2.5 Australia License http://creativecommons.org/licenses/by-sa/2.5/au/

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lightweight SOA with web widgets

by Phil Calçado on May 15, 2008

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lightweight SOA with web widgets — Presentation Transcript