Example how to transform RDF from one serialisation to another

example.js

// npm install rdf-parse rdf-serialize stream-to-string streamify-string'
// node example.js
const rdfParser = require("rdf-parse").default;
const rdfSerializer = require("rdf-serialize").default;
const stringifyStream = require('stream-to-string');
const streamifyString = require('streamify-string');

doit(`
{
  "@context": "http://schema.org/",
  "@type": "Person",
  "name": "Jane Doe",
  "jobTitle": { "@list": ["Professor", "Master" ] } ,
  "telephone": "(425) 123-4567",
  "url": "http://www.janedoe.com"
}
`,
    'application/ld+json',
    'text/turtle'
);

async function doit(data,inType,outType) {
    const inStream = streamifyString(data);
    const quadStream = rdfParser.parse(inStream, { contentType: inType });
    const outStream = rdfSerializer.serialize(quadStream, { contentType: outType });
    console.log(await stringifyStream(outStream));
}