#node-rdf2json
node-rdf2json can help users in transforming RDF/XML (resource centric) into JSON (key-value centric).
#Usage:
Add node-rdf2json module to your require path:
var rdf2json = require("rdf2json");
Generate JSON based on a URL:
rdf2json.rdf2json.convertURLIntoRDFJSON(url, format, function(err, rdfjson){
var obj = eval("(" + rdfjson + ")");
sys.puts(sys.inspect(obj));
});
Generate JSON from an RDF file:
rdf2json.convertFileIntoRDFJSON(filepath, format, function(err, rdfjson){
var obj = eval("(" + rdfjson + ")");
sys.puts(sys.inspect(obj));
});
Generate JSON from a RDF string:
rdf2json.convertStringIntoRDFJSON(str, format, function(err, rdfjson){
var obj = eval("(" + rdfjson + ")");
sys.puts(sys.inspect(obj));
});
#Supported RDF/JSON formats
As the time of the last release, there is no "standard" mapping between RDF and JSON and node-rdf2json supports the following RDF/JSON formats (will be extended continuously):
[1] "flat": Flat RDF/JSON format.
example:
rdf2json.convertFileIntoRDFJSON("./test/wine.rdf", "flat", function(err, rdfjson){
// do something with rdfjson
});
[2] "sparql": SPARQL RDF/JSON format.
example:
rdf2json.convertURLIntoRDFJSON("http://www.w3.org/TR/owl-guide/wine.rdf", "sparql", function(err, rdfjson){
// do something with rdfjson
});
[3] "talis": Talis RDF/JSON format.
exmaple:
rdf2json.convertStringIntoRDFJSON("" +
"<?xml version=\"1.0\"?>" +
" <!DOCTYPE rdf:RDF [" +
" <!ENTITY vin \"http://www.w3.org/TR/2003/PR-owl-guide-20031209/wine#\" >" +
" <!ENTITY food \"http://www.w3.org/TR/2003/PR-owl-guide-20031209/food#\" >" +
" <!ENTITY owl \"http://www.w3.org/2002/07/owl#\" >" +
" <!ENTITY xsd \"http://www.w3.org/2001/XMLSchema#\" >" +
"]>" +
...
"</rdf:RDF>", "talis", function(err, rdfjson){
// do something with rdfjson
});