Monitor website changes

index.js

const axios = require("axios");
const nodemailer = require("nodemailer");

const urlToCheck = "SOME_URL";
const textToCheck = "Text on page";
const checkingFrequencyInSeconds = 15;
const emailAddress = "YOUR_GMAIL_EMAIL";
const gmailPassword = "YOUR_PASSWORD";

function sendMail() {
  var transporter = nodemailer.createTransport({
    service: "gmail",
    auth: {
      user: emailAddress,
      pass: gmailPassword,
    },
  });

  var mailOptions = {
    from: emailAddress,
    to: emailAddress,
    subject: "Parking tickets!",
    text: urlToCheck,
  };

  transporter.sendMail(mailOptions, function (error, info) {
    if (error) {
      console.log(error);
    } else {
      console.log("Email sent: " + info.response);
    }
  });
}

let interval;
interval = setInterval(() => {
  axios.get(urlToCheck).then((res) => {
    const hasText = res.data.includes(textToCheck);

    if (hasText) {
      console.log("now!");
      sendMail();
    } else {
      console.log("not yet...");
    }
  });
}, checkingFrequencyInSeconds * 1000);