webpack-loader-rdf

RDF/JS parsers (and serializers) are quite heavy, only work asynchrnously, and depend on various node-native modules, such as stream and crypto. This can be a nuisance when static RDF is imported early in an application becasue it unnecessarily increases the size of the initial bundle and thus slows down the initial page load.

A webpack loader reserializes RDF into JS code so that it can be bundled along all other sources.

Usage

npm i -D webpack-loader-rdf

In webpack.config.js

module.exports = {
  module: {
    rules: [{
      test: /\.(ttl|nt|nq|rdf|jsonld|trig)$/,
      use: 'webpack-loader-rdf',
    }],
  }
}

In code:

1. Import your favourire RDF/JS DataFatory
2. Default-import RDF module
3. Combine the two to get a Quad[]

import * as $rdf from '@rdf-esm/data-model'
import getPersonQuads from './data/person.ttl`

const personQuads = getPersonQuads($rdf)

In TypeScript

Declare this module, for example in a global.d.ts, to get types for Turtle imports

declare module '*.ttl' {
  import { Quad, DataFactory } from 'rdf-js'

  export default function (factory: DataFactory): Quad[]
}