send function parameter values into html template using node js - html

Question

I'm writing a service in node.js. In that, I used to send the mail to user with the verification link.
For that I used nodemailer, all works perfectly. In that, I directly used the html part, So I access the token variable. Now I need to move that html part into separate folder. Now the issue is accessing the token(ie, the params value) My code is like, modules/users.js
let sendNotification = await mailer.sendMail(userDetail.email, token);
When I create user, the token is sent to the userDetail.email. My previous mailer looks like, mailer/applicationMailer.js
async function sendMail(userMail, token) {
// let htmlTemplate = fs.readFileSync(__dirname + '/templates/mail.html');
let transporter = nodemailer.createTransport(smtpTransport({
host: 'smtp.gmail.com',
port: 587,
secure: false,
auth: {
user: 'xxx#gmail.com',
pass: '********'
}
}));
let mailOptions = {
from: 'xxx#gmail.com',
to: userMail,
cc: '',
subject: 'Account verification',
// html: htmlTemplate
html: `<p>To verify your account click LINK</p>` +
`<p>This link will be expired in two days.</p>` +
`<p><strong>Note:</strong> Contact your ADMIN, if the link is expired</p>`
};
transporter.sendMail(mailOptions, async function (error, info) {
if (error) {
console.log(error);
} else {
console.log('Email sent: ' + info.response);
}
});
};
I need to move the html part into template/mail.html and access the htmlTemplate variable. There I cant access the token. I need to pass the param value to html page. How to do that?
Thanks in Advance.

Answer 1

You are looking for EJS
const ejs = require("ejs");
ejs.renderFile(__dirname + "/test.ejs", { token }, function (err, data) {
if (err) {
console.log(err);
} else {
const mainOptions = {
from: 'xxx#gmail.com',
to: userMail,
cc: '',
subject: 'Account verification',
html: data
};
transporter.sendMail(mainOptions, function (err, info) {
if (err) {
console.log(err);
} else {
console.log('Message sent: ' + info.response);
}
});
}
});