use_screenshot.js

// Code from https://github.com/leighhalliday/generate-og-image/blob/master/src/chromium.ts
// and https://github.com/wesbos/wesbos/blob/master/functions/ogimage/ogimage.js
// and thanks wes.bos for the video on this at https://youtu.be/A0Ww-SU7K5E

exports.handler = async (event, context, callback) => {
  const url = event.queryStringParameters.url;
  
  const r = await fetch(
    `https://publish.twitter.com/oembed?url=${url}&hide_thread=true`
  ).then((r) => r.json());

  try {
    const isDev = process.env.CHROME === "local" ? true : false;
    const photoBuffer = await getScreenshot(html, isDev);
    
    return {
      statusCode: 200,
      body: photoBuffer.toString("base64"),
      isBase64Encoded: true,
    };
  } catch (err) {
    callback(err, null);
  }
};