Generate Gravatar or default to Initials Avatar

generateGravatar.js

/**
This is in a Nodejs environment
*/

const crypto = require('crypto');

module.exports = (
  email = '',
  name = 'Anonymous',
  initialsAvatarBackground = '000000',
  initialsColor = 'fff'
) => {
  const processedName = name.toString().replace(/( )+/g, '+');
  const defaultImageUrl = encodeURIComponent(
    `https://ui-avatars.com/api/${processedName}/80/${initialsAvatarBackground}/${initialsColor}`
  );
  const processedEmail = email
    .toString()
    .trim()
    .toLowerCase();
  const hash = email
    ? crypto
      .createHash('md5')
      .update(processedEmail)
      .digest('hex')
    : '';
  return `https://www.gravatar.com/avatar/${hash}?d=${defaultImageUrl}`;
};