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Creating 3rd GenerationWeb APIs with HydraMarkus LanthalerGraz University ofTechnology
Level 0:The Swamp of POXLevel 1: ResourcesLevel 2: HTTPVerbsLevel 3: Hypermedia Controls
Using Web APIs is still challenging
- Layered system
Result: tightly coupled & brittle systems
REST + Linked Data: a match made!?
Semaphobia!?
ResourceLinkFormClassOperationHydra
{"id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open": true,"created_at": "2012-11-26T...
{"id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open": true,"created_at": "2012-11-26T...
{"@context": "/ctx/context.jsonld","id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open...
{"@context": {..."is_open": "http://example.com/vocab#isOpen","comments": {"@id": "http://example.com/vocab#comments","@ty...
{"@context": "/ctx/context.jsonld","id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open...
{"@id": "#comments","@type": "hydra:Link","supportedOperations": [{"@id": "#create-comment","@type": "hydra:CreateResource...
{"@id": "#Comment","@type": "hydra:Class","supportedProperties": [{"property": "#text","required": true,"readonly": false,...
Hydra Console
© 2013, Markus Lanthaler. Some Rights Reserved.http://creativecommons.org/licenses/by-nc-sa/3.0/Thank You
Questions?Markus Lanthalerhttp://www.markus-lanthaler.com@MarkusLanthalermail@markus-lanthaler.com
Image Credits(1) http://www.flickr.com/photos/joeshlabotnik/3707230247/(2) http://onlyhdwallpapers.com/high-definition-wal...
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
Creating 3rd Generation Web APIs with Hydra
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Creating 3rd Generation Web APIs with Hydra

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Presentation of the paper "Creating 3rd Generation Web APIs with Hydra" at the 22nd Internation World Wide Web Conference (WWW2013) in Rio de Janeiro, Brazil

Publicado en: Tecnología
Licencia: CC Attribution-NonCommercial-ShareAlike License
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Creating 3rd Generation Web APIs with Hydra

  1. 1. Creating 3rd GenerationWeb APIs with HydraMarkus LanthalerGraz University ofTechnology
  2. 2. Level 0:The Swamp of POXLevel 1: ResourcesLevel 2: HTTPVerbsLevel 3: Hypermedia Controls
  3. 3. Using Web APIs is still challenging
  4. 4. - Layered system
  5. 5. Result: tightly coupled & brittle systems
  6. 6. REST + Linked Data: a match made!?
  7. 7. Semaphobia!?
  8. 8. ResourceLinkFormClassOperationHydra
  9. 9. {"id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open": true,"created_at": "2012-11-26T04:49:44Z"}http://example.com/issues/cso29axhttp://example.com/issue/{id}/comments/
  10. 10. {"id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open": true,"created_at": "2012-11-26T04:49:44Z","comments": "/issues/cso29ax/comments/"}http://example.com/issues/cso29ax
  11. 11. {"@context": "/ctx/context.jsonld","id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open": true,"created_at": "2012-11-26T04:49:44Z","comments": "/issues/cso29ax/comments/"}http://example.com/issues/cso29ax
  12. 12. {"@context": {..."is_open": "http://example.com/vocab#isOpen","comments": {"@id": "http://example.com/vocab#comments","@type": "@id"}}}http://example.com/ctx/context.jsonld
  13. 13. {"@context": "/ctx/context.jsonld","id": "cso29ax","title": "WWW2013","description": "Presentation for dev track","is_open": true,"created_at": "2012-11-26T04:49:44Z","comments": "/issues/cso29ax/comments/"}http://example.com/issues/cso29ax{"@id": "#comments","@type": "hydra:Link",...}
  14. 14. {"@id": "#comments","@type": "hydra:Link","supportedOperations": [{"@id": "#create-comment","@type": "hydra:CreateResourceOperation","label": "Creates a new comment","method": "POST","expects": "#Comment","returns": "#Comment"}]}
  15. 15. {"@id": "#Comment","@type": "hydra:Class","supportedProperties": [{"property": "#text","required": true,"readonly": false,"writeonly": false}]}
  16. 16. Hydra Console
  17. 17. © 2013, Markus Lanthaler. Some Rights Reserved.http://creativecommons.org/licenses/by-nc-sa/3.0/Thank You
  18. 18. Questions?Markus Lanthalerhttp://www.markus-lanthaler.com@MarkusLanthalermail@markus-lanthaler.com
  19. 19. Image Credits(1) http://www.flickr.com/photos/joeshlabotnik/3707230247/(2) http://onlyhdwallpapers.com/high-definition-wallpaper/903850/(4) http://www.flickr.com/photos/kaptainkobold/3203311346/(6) http://www.flickr.com/photos/joyoflife/1570126182/(8) http://en.wikipedia.org/wiki/The_Scream(9) http://www.vonwong.com/ (with permission)

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