BL example

bl_example.js

function onPostSave(request, response, modules) {
  var to, logger = modules.logger, email = modules.email, body = request.body;
  for (var i = 0; i < body.invitees.length; i++){
    /* assumes the following request JSON body
    {
      "invitees": ["invitee1@gmail.com", "invitee2@gmail.com"],
      "subject": "New invitation",
      "body": "You are invited to this awesome new event. Hope you can make it",
      "reply_to": "support@company.com"
    }*/ 
    to = body.invitees[i];
    logger.info("Sending e-mail to: " + to);
    email.send('my-app-invitation@my-app.com', to, body.subject, body.body, body.reply_to);
  }
  response.continue();
}