Postmark usage with NodeJS

postmark.mjs

const api = "your-api";

import postmark from 'postmark';

// Send an email:
let client = new postmark.ServerClient(api);

let r = client.sendEmail({
  "From": "[email protected]",
  "To": "[email protected]",
  "Subject": "Test",
  "TextBody": "Hello from Postmark!"
});

console.log(r);