Fetching JSON-LD does not appear to work

[dantman]

Fetching a JSON-LD document does not appear to put anything into the store.

I tested this out with 1.0.4 by trying to fetch various urls with nowOrWhenFetched and dumping the store with toString when fetched.

I verified my test for fetching data worked by fetching Turtle (application/x-turtle) data. This worked, dumping a pile of data from Book.ttl into the store.

var $rdf = require('rdflib');
var store = $rdf.graph();
var fetcher = new $rdf.Fetcher(store, 5000);
fetcher.nowOrWhenFetched('http://schema.org/Book.ttl', () => { console.log(store.toString()); });

Fetching RDF data failed, however that's fine because schema.org is incorrectly returned a application/xml content-type.

var $rdf = require('rdflib');
var store = $rdf.graph();
var fetcher = new $rdf.Fetcher(store, 5000);
fetcher.nowOrWhenFetched('http://schema.org/Book.rdf', () => { console.log(store.toString()); });

But trying to fetch the JSON-LD version of the document also failed. This failure was not expected because the server correctly sends back a application/ld+json; charset=utf-8 content-type.

var $rdf = require('rdflib');
var store = $rdf.graph();
var fetcher = new $rdf.Fetcher(store, 5000);
fetcher.nowOrWhenFetched('http://schema.org/Book.jsonld', () => { console.log(store.toString()); });

[angelo-v]

Fixed in #468

[bourgeoa]

@angelo-v #468 only soved the predicate part.
see PR #469 that should solve the predicate and object when using @type as a node type or a value type per JSON-LD specification https://json-ld.org/spec/latest/json-ld/#typed-values.