index.js

const lighthouse = require('lighthouse');
const chromium = require('chrome-aws-lambda');

exports.handler = async (event, context, callback) => {
  let result = null;
  let browser = null;

  try {
    browser = await chromium.puppeteer.launch({
      args: [...chromium.args, "--remote-debugging-port=9222"],
      defaultViewport: chromium.defaultViewport,
      executablePath: await chromium.executablePath,
      headless: chromium.headless,
      ignoreHTTPSErrors: true,
    });

    const options = event.options || {
      logLevel: 'info',
      output: 'json',
      onlyCategories: ['performance'],
      port: 9222,
    };
    const runnerResult = await lighthouse(event.url, options);

    result = runnerResult.report;
  } catch (error) {
    return callback(error);
  } finally {
    if (browser !== null) {
      await browser.close();
    }
  }

  return callback(null, result);
};