preload-links-by-lighthouse/dist/esm/lib/lighthouse.js

Generate html with embedded preload links using lighthouse

import { launch } from 'chrome-launcher';
import lighthouse from 'lighthouse';
const DEFAULT_OPTIONS = {
    output: 'json',
    onlyAudits: ['network-requests'],
};
export async function auditNetworkRequest(url, lighthouseOptions) {
    const chrome = await launch({ chromeFlags: ['--headless'] });
    const report = await lighthouse(url, {
        ...DEFAULT_OPTIONS,
        ...lighthouseOptions,
        port: chrome.port,
    });
    await chrome.kill();
    if (report === undefined) {
        throw new Error('Fail to generate report by lighthouse');
    }
    const result = report.lhr;
    const items = result.audits['network-requests'].details.items;
    return items;
}
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