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Pass Variable To Html Template In Nodemailer

When working with Nodemailer, a popular Node.js module for sending emails, you might find yourself in a situation where you need to pass variables to an HTML template to personalize the content of the emails you are sending. In this guide, we'll explore how you can achieve this goal effectively.

Setting Up the Project

Assuming you have already set up your Node.js project and installed Nodemailer using npm, the first step is to create an HTML template that will serve as the content for your emails. You can include placeholders in this template where you want to dynamically insert variables.

Here's an example of a simple HTML template with placeholders:

Html

<title>Email Template</title>


    <h1>Hello, {{name}}!</h1>
    <p>Your account balance is: ${{balance}}.</p>

Passing Variables to the HTML Template

To pass variables to this HTML template, you can make use of template engines such as Handlebars or EJS. These template engines allow you to render dynamic content in your HTML templates.

Here's how you can achieve this using Handlebars:
1. Install Handlebars by running `npm install handlebars` in your project directory.
2. Create a Handlebars template with the appropriate placeholders.
3. Use the Handlebars library to compile the template with the variables you want to pass.
4. Include the compiled HTML in the email content when sending the email using Nodemailer.

Example Code Snippet:

Javascript

const nodemailer = require('nodemailer');
const handlebars = require('handlebars');
const fs = require('fs');

// Read the HTML template file
const template = fs.readFileSync('emailTemplate.html', 'utf8');

// Compile the template
const compiledTemplate = handlebars.compile(template);

// Define variables to pass to the template
const variables = {
    name: 'John Doe',
    balance: 1000
};

// Render the template with variables
const renderedTemplate = compiledTemplate(variables);

// Create Nodemailer transporter
const transporter = nodemailer.createTransport({ /* transporter options here */ });

// Send the email with the rendered template
transporter.sendMail({
    from: 'your@example.com',
    to: 'recipient@example.com',
    subject: 'Your Email Subject',
    html: renderedTemplate
});

By following these steps and using Handlebars or a similar template engine, you can seamlessly pass variables to an HTML template when sending emails with Nodemailer. This approach allows you to create dynamic and personalized email content tailored to your recipients.

Experiment with different variables, template structures, and styles to enhance the user experience and engagement with your emails. Remember to test your email templates thoroughly to ensure they display correctly across different email clients and devices.

With these techniques, you can take your email communications to the next level by delivering customized and engaging content to your audience. Happy coding!

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