api.js

// SendPulse's Node.JS Library: https://github.com/sendpulse/sendpulse-rest-api-node.js
var sendpulse = require("./api/sendpulse.js");
sendpulse.init(API_USER_ID,API_SECRET,TOKEN_STORAGE);

var email = {
  "html" : "<p>Your email content goes here</p>",
  "text" : "Your email text version goes here",
  "subject" : "Testing SendPulse API",
  "from" : {
    "name" : "Your Sender Name",
    "email" : "your-sender-email@gmail.com"
  },
  "to" : [ { 
    "name" : "Subscriber's name",
    "email" : "subscriber@gmail.com" 
  } ]
};
var answerGetter = function answerGetter(data){
    console.log(data);
}
sendpulse.smtpSendMail(answerGetter,email);