felixgirault/essence.js

import cheerio from 'cheerio';
import createService from './createService';



/**
 *    @TODO: stream the page to stop early.
 */
export default function findServiceFromHtml(html) {
    const $ = cheerio.load(html);
    const links = $('link', 'head');
    const pattern = /application\/(json|xml)\+oembed/i;
    let service;

    links.each((i, el) => {
        const link = $(el);
        const type = link.attr('type');
        const href = link.attr('href');

        if (!type || !href) {
            return;
        }

        const matches = pattern.exec(type);

        if (matches && matches[1]) {
            service = createService(href, matches[1]);
            return false;
        }
    });

    return service;
};