How to parse arbitrary RDF IRI through javascript?

Question

RDF IRI such as:

• https://www.w3.org/1999/02/22-rdf-syntax-ns
• https://www.dublincore.org/specifications/dublin-core/dcmi-terms/dublin_core_terms.ttl
• http://dbpedia.org/resource/Resource_Description_Framework
• http://purl.obolibrary.org/obo/GENEPIO_0100155
• http://purl.obolibrary.org/obo/NCBITaxon_2697049
• ......

I know that RDF IRI returns RDF data.

I want to parse arbitrary RDF IRI and show it as a list on the page.

Answer 1

This question has been resolved.

I use rdflib.js to parse HTTP RDF IRI:

• https://www.w3.org/1999/02/22-rdf-syntax-ns
• http://dbpedia.org/resource/Resource_Description_Framework
• ... (if server allow CORS)

But javascript can't parse CORS requests:

• https://www.dublincore.org/specifications/dublin-core/dcmi-terms/dublin_core_terms.ttl
• http://purl.obolibrary.org/obo/GENEPIO_0100155
• http://purl.obolibrary.org/obo/NCBITaxon_2697049
• ... (if server doesn't allow CORS)

Answer 2

IRI (Internationalized Resource Identifier) is an extension of the URI. It does not return data, it is an identifier. There is also no "RDF" IRI/URI; all the URIs you list are "http" or "https" URIs. Parsing such a URI would mean splitting it into parts like "http", "www.w3.org", and "/1999/02/22-rdf-syntax-ns".

Usually the web server is configured to produce semantic data (in Turtle, RDF/XML, JSON-LD, RDFa etc.; you'd use content negotiation to get one of the formats you understand) when you navigate to URIs actually denoting a vocabulary, but it doesn't have to.

There are libraries for JS for working with RDF, but if you want to do this in a web page, with client-side JavaScript, you are out of luck ‒ JavaScript doesn't allow you to retrieve the content of a cross-domain page.