1.
JSON-LD
for RESTful Services
Markus Lanthaler
Graz University of Technology

2.
Web APIs are becoming a must-have

3.
- Layered system

4.
Semaphobia!?

5.
Linked Data Graph

6.
Example
Jane Doe

7.
http://example.com/persons/{id}
{
"id": "mlanthaler",
"name": "Markus Lanthaler",
"title": {
"de": "Dipl.Ing.",
"en": "MSc"
},
"workHomepage": "http://www.tugraz.at",
"knows": [
{ "id": "johndoe", "name": "John Doe" },
{ "id": "janedoe", "name": "Jane Doe" }
]
}

8.
{
"@id": "mlanthaler",
"name": "Markus Lanthaler",
"title": [
{ "@language": "de", "@value": "Dipl.Ing." },
{ "@language": "en", "@value": "MSc" }
],
"workHomepage": "http://www.tugraz.at",
"knows": [
{ "@id": "johndoe", "name": "John Doe" },
{ "@id": "janedoe", "name": "Jane Doe" }
]
} {
"@context": {
"foaf": "http://xmlns.com/foaf/0.1/",
"name": "foaf:name",
"title": "foaf:title",
"workHomepage": {
"@id": "foaf:workplaceHomepage",
"@type": "@id"
},
"knows": "foaf:knows"
}
}

9.
Link: </context.jsonld>; rel="describedby"
{
"id": "mlanthaler",
"name": "Markus Lanthaler",
"title_de": "Dipl.Ing.",
"title_en": "MSc",
"homepage": "http://www.tugraz.at",
"knows": [
{ "id": "johndoe", "name": "John Doe" },
{ "id": "janedoe", "name": "Jane Doe" }
]
}
{
"@context": {
"foaf": "http://xmlns.com/foaf/0.1/",
"name": "foaf:name",
"title_de": { "@id": "foaf:title", "@language": "de" },
"title_en": { "@id": "foaf:title", "@language": "en" },
"homepage": { "@id": "foaf:workplaceHomepage", "@type": "@id" },
"knows": "foaf:knows",
"id": "@id"
}
}

10.
@context
@id
@language @list
@set
@value
@type @container
@graph

11.
kTBS

12.
Thank You
© 2011, Markus Lanthaler. Some Rights Reserved.
http://creativecommons.org/licenses/by-nc-sa/3.0/

13.
Questions?
Markus Lanthaler @MarkusLanthaler
Markus.Lanthaler@student.TUGraz.at http://www.slideshare.net/lanthaler

14.
Image Credits
(1) http://www.flickr.com/photos/bestrated1/49371264/
(2) http://www.flickr.com/photos/johnmcnab/3759095224/
(3) http://www.flickr.com/photos/alexdram/3095419858/
(4) Adapted from: http://www.flickr.com/photos/elektronaut/243067805/
(7) http://en.wikipedia.org/wiki/The_Scream