What should I listen to? Lambda

index.js

process.env.NODE_CONFIG_DIR = "/var/task/config";

const https = require("https")
    , queryString = require("querystring");

// Twilio Credentials
const accountSid = ""
    , authToken = ""
    , fromNumber = ""
    , toNumber = "";

const getRecord = function(callback) {
  const url = "https://rayons.info/items/random.json";

  https.get(url, function(res){
    var body = "";

    res.on("data", function(chunk) {
      body += chunk;
    });

    res.on("end", function(){
      var item = JSON.parse(body);

      const itemURL = `https://rayons.info/items/${item.id}`;
      callback(`You should listen to "${item.title}" by ${item.artist}: ${itemURL}`);
    });
  }).on("error", function(e){
    console.log("Got an error: ", e);
    callback(null)
  });
};

// Based on https://gist.github.com/stevebowman/7cff9dd80b227c899728
const sendSMS = function(message, callback) {
  const text = {
    To: toNumber,
    From: fromNumber,
    Body: message
  };

  const messageString = queryString.stringify(text);

  const options = {
    host: "api.twilio.com",
    port: 443,
    path: "/2010-04-01/Accounts/" + accountSid + "/Messages.json",
    method: "POST",
    headers: {
      "Content-Type": "application/x-www-form-urlencoded",
      "Content-Length": Buffer.byteLength(messageString),
      "Authorization": "Basic " + new Buffer(accountSid + ":" + authToken).toString("base64")
    }
  };

  // Setup the HTTP request
  var req = https.request(options, function (res) {
    res.setEncoding("utf-8");

    // Collect response data as it comes back.
    var responseString = "";
    res.on("data", function (data) {
      responseString += data;
    });

    // Log the responce received from Twilio.
    // Or could use JSON.parse(responseString) here to get at individual properties.
    res.on("end", function () {
      console.log("Twilio Response: " + responseString);
      callback("API request sent successfully.");
    });
  });

  // Handler for HTTP request errors.
  req.on("error", function (e) {
    console.error("HTTP error: " + e.message);
    callback("API request completed with error(s).");
  });

  console.log("Twilio API call: " + messageString);
  req.write(messageString);
  req.end();
};

exports.handler = function (event, context) {
  getRecord(function(message) {
    if (message) {
      sendSMS(message, function(status) {
        context.done(null, status);
      });
    } else {
      context.done();
    }
  });
};