@rdfx/resource

Resource abstraction over RDF/JS Datasets.

Inspired by similar abstractions in

• Apache Jena
• rdflib
• Sophia

Installation

npm i rdfjs-resource

Usage

Wrap an RDF/JS BlankNode or NamedNode in a Resource

const resource = new Resource(dataset, identifier);

Retrieve a value (object) of the Resource

import { rdf } from "@tpluscode/rdf-ns-builders";

const value = resource.value(rdf.type).toNumber().orDefault(0);

Resource.value(predicate) and Resource.values(predicate) return a Resource.TermValue, which has various to conversion methods that return purify-ts Either monads.

See the Resource.test.ts for additional usage.

ResourceSet

For convenience, you can wrap a DatasetCore in a ResourceSet, then instantiate Resources from that:

const resourceSet = new ResourceSet(dataset);
resourceSet.resource(identifier).value(rdf.type);