microdata-node

Example:

var microdata = require('microdata-node');
var html =
 '<section itemscope itemtype="http://schema.org/Person"> ' +
 ' Hello, my name is ' +
 ' <span itemprop="name">John Doe</span>, ' +
 ' I am a ' +
 ' <span itemprop="jobTitle">graduate research assistant</span> ' +
 ' at the ' +
 ' <span itemprop="affiliation">University of Dreams</span>. ' +
 ' My friends call me ' +
 ' <span itemprop="additionalName">Johnny</span>. ' +
 ' You can visit my homepage at ' +
 ' <a href="http://www.JohnnyD.com" itemprop="url">www.JohnnyD.com</a>. ' +
 ' <section itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">' +
 ' I live at ' +
 ' <span itemprop="streetAddress">1234 Peach Drive</span>,' +
 ' <span itemprop="addressLocality">Warner Robins</span>,' +
 ' <span itemprop="addressRegion">Georgia</span>.' +
 ' </section>' +
 '</section>';
var json = microdata.toJson(html, {
 base: 'http://www.example.com'
});
console.log(JSON.stringify(json, null, 2));
/*
{
 "items": [{
 "properties": {
 "address": [{
 "properties": {
 "addressRegion": [ "Georgia" ],
 "addressLocality": [ "Warner Robins" ],
 "streetAddress": [ "1234 Peach Drive" ]
 },
 "type": [ "http://schema.org/PostalAddress" ]
 }],
 "url": [ "http://www.JohnnyD.com" ],
 "additionalName": [ "Johnny" ],
 "affiliation": [ "University of Dreams" ],
 "jobTitle": [ "graduate research assistant" ],
 "name": [ "John Doe" ]
 },
 "type": [ "http://schema.org/Person" ]
 }]
}
*/
var jsonld = microdata.toJsonld(html, {
 base: 'http://www.example.com'
});
console.log(JSON.stringify(jsonld, null, 2));
/*
[{
 "@id": "_:0",
 "@type": [ "http://schema.org/Person" ],
 "http://schema.org/address": [{ "@id": "_:1" }],
 "http://schema.org/url": [{ "@id": "http://www.JohnnyD.com" }],
 "http://schema.org/additionalName": [{ "@value": "Johnny" }],
 "http://schema.org/affiliation": [{ "@value": "University of Dreams" }],
 "http://schema.org/jobTitle": [{ "@value": "graduate research assistant" }],
 "http://schema.org/name": [{ "@value": "John Doe" }]
}, {
 "@id": "_:1",
 "@type": [ "http://schema.org/PostalAddress" ],
 "http://schema.org/addressRegion": [{ "@value": "Georgia" }],
 "http://schema.org/addressLocality": [{ "@value": "Warner Robins" }],
 "http://schema.org/streetAddress": [{ "@value": "1234 Peach Drive" }]
}]
*/

API

microdata.toJson(html, [config])

microdata.toJsonld(html, [config])