data.fm: data cloud

status: complete

data.fm: data cloud

This web data platform supports several generations of standards and recommendations:

Web 1 and 2: DAV, AJAX, JSONP, CORS
Read/Write Linked Data, RDF/XML/JSON content negotiation, SPARQL 1.1, and WebID

All endpoints interpret the HTTP request URI as the base URI for RDF operations and the default-graph URI for SPARQL operations.

Specify the media type of your request data with a Content-Type HTTP header.
Specify your response type preference with an Accept HTTP header.

Request methods:

Read: GET, HEAD, OPTIONS
Write: PUT, MKCOL, DELETE
Append: POST
Update:
- JSON PATCH (application/json)
- SPARQL POST (*/sparql-query)

Response types:

Web (index.html, style.css, script.js)
JSON (Accept */json)
JSON-P (GET ?callback=)
SPARQL JSON (GET/POST ?query=)
RSS (Accept */rss+xml)
Atom (Accept */atom+xml)

RDF media types:

JSON: application/json
NTriples: */rdf+nt, */nt
RDF/XML: */rdf+xml
RDFa: */html, */xhtml
Turtle: */turtle, */rdf+n3, */n3

(defaults to Turtle)

*/type: refers to a media type, specified in HTTP header (Accept or Content-Type)
name.ext: refers to a filename, specified by HTTP request URI
?k=v: refers to a query string parameter 'k' with value 'v': passed in URL via GET or application/x-www-form-urlencoded via POST

Some query string options and response (HTTP Accept) media types are complementary.

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