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HydraAVocabulary for HypermediaAPIsMarkus LanthalerGraz University ofTechnology

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Why can’t Web APIs be browsed?

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- Layered system

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REST + Linked Data: a match made!?

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ResourceLinkFormClassrdfs:Resourcerdf:Propertyrdfs:ClassOperation

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ResourceLinkFormClassrdfs:Resourcerdf:Propertyrdfs:ClassOperationTemplated

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{"id": "cso29ax","title": "LDOW2013 presentation","description": "Prepare LDOW2013 presentation","is_open": true,"created_at": "2012-11-26T04:49:44Z","comments": "/issues/cso29ax/comments/"}http://example.com/issues/cso29ax

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{"@context": "/ctx/context.jsonld","id": "cso29ax","title": "LDOW2013 presentation","description": "Prepare LDOW2013 presentation","is_open": true,"created_at": "2012-11-26T04:49:44Z","comments": "/issues/cso29ax/comments/"}http://example.com/issues/cso29ax{"@id": "#comments","@type": "hydra:Link",...}

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{"@id": "#comments","@type": "hydra:Link","supportedOperations": [{"@id": "#create-comment","@type": "hydra:CreateResourceOperation","label": "Creates a new comment","method": "POST","expects": "#Comment","returns": "#Comment"}]}

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{"@id": "#Comment","@type": "hydra:Class","supportedProperties": [{"property": "#text","required": true,"readonly": false,"writeonly": false}]}

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Hydra Console

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© 2013, Markus Lanthaler. Some Rights Reserved.http://creativecommons.org/licenses/by-nc-sa/3.0/Thank You

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Questions?Markus Lanthalerhttp://www.markus-lanthaler.com@MarkusLanthalermail@markus-lanthaler.com

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Image Credits(1) http://www.flickr.com/photos/ecstaticist/3650101568/(2) http://www.flickr.com/photos/eole/8138645952/(5) http://www.vonwong.com/ (with permission)