rdf-ext

RDF Interfaces Extension

Attention: a lot of work has gone through rdf-ext 0.3.0 and it doesn't match this documentation. Right now you can have a look at the tests and at the different packages under the rdf-ext organization. Documentation will be updated soon

RDF-Ext provides a JavaScript library for working with RDF & Linked Data. This module contains the core classes to handle RDF Model data. Additional modules may be required to handle data in different formats (Turtle, JSON-LD, RDF/XML) or stores (LDP, SPARQL). The module section lists the most common modules.

Usage

In general, consult the API documentation for details about how to interact with the library.

node.js

RDF-Ext is available on npm, to install it run:

npm install rdf-ext

In the code, import RDF-Ext:

var rdf = require('rdf-ext');

Browser

Just import the RDF-Ext distribution:

<script src="/js/rdf-ext.js"></script>

Distribution

You can download a prebuilt or custom distribution from the RDF-Ext distribution builder site. The RDF-Ext distribution builder also offers a command line interface to build custom distributions.

Browserify

If you build your application with Browserify, RDF-Ext can be bundled flawless.

Support

Issues & feature requests should be reported on Github.

Pull requests are very welcome.

Modules

There are many modules for parsing, serializing, stores for persistence and simplified data handling.

Parsers

• Abstract - Can be used to implement own parsers
• DOM - Can be used to implement parsers for XML or HTML formats
• JSON-LD - Uses the reference implementation to supports all document forms
• Microdata - Fork of the Green Turtle parser
• RDF/XML - Fork of the rdflib.js RDF/XML parser
• Turtle & N-Triples - Uses N3.js for parsing

Serializers

• Abstract - Can be used to implement own serializers
• JSON-LD - Outputs JSON-LD in flat document form
• N-Triples - Uses the .toNT() method to serialize N-Triples
• Turtle - Uses N3.js for serializing
• SPARQL Update - Generates INSERT DATA SPARQL updates

Stores

• Abstract - Abstract implementation, can be used to build your own store
• ACL wrapper - Add ACL support to your RDF store
• File system - Using the file system
• In Memory - Store loaded in memomory
• LDP - Query an external Linked Data Platform via RESTful HTTP requests
• Local/Remote - Uses a local store or a remote store depending on the IRI
• Multistore - Use multiple store depending on the IRI
• Single graph (memory) - Store has only a single graph
• SPARQL - Uses the Graph Store HTTP Protocol interface

Others

• Clownface - Simple but powerful graph traversing library
• Common Formats - Loads parsers and serializers for the most common formats
• SimpleRDF - Simple but powerful graph to object mapping