An example project that uses Greenlock + Express + Freenom DNS to automatically issue Let's Encrypt certificates via the v2 API.

While this technically works, it has the giant caveat that the Freenom DNS API can take multiple minutes to start advertising newly updated records.

Because of the design of Greenlock, this means there is a multi-minute delay PER domain when issuing certificates.

For this reason, it's probably preferable to host your domain's nameservers somewhere sane (like Cloudflare) and use the Greenlock Cloudflare plugin instead.

Configure this in index.js:

// Configure me
const config = {
  // Your email so ACME can email you about expiry
  acmeEmail: '[email protected]',
  // Your Freenom login so that we can update your DNS records
  freenomCredentials: { user: 'freenom username', password: 'freenom password' },
  // What domains should we be issuing certificates for
  freenomDomains: ['express-greenlock-test.ga', 'www.express-greenlock-test.ga']
}

The DNS delay can be tuned in freenom-challenge.js:

        setTimeout(() => cb(null), 2 * 60 * 1000)