Sendgrid - Code Snippet

API call

import sendgrid from "@sendgrid/mail";

sendgrid.setApiKey(process.env.SENDGRID_API_KEY);

export default async (req, res) => {
  try {
    await sendgrid.send({
      to: req.body.email,
      from: "rodriguescarsonwork@gmail.com",
      subject: "Greetings! Thankyou for contacting me",
      html: `<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      <html lang="en">
      <head>
        <meta charset="utf-8">

        <title>The HTML5 Herald</title>
        <meta name="description" content="The HTML5 Herald">
        <meta name="author" content="SitePoint">
      <meta http-equiv="Content-Type" content="text/html charset=UTF-8" />

        <link rel="stylesheet" href="css/styles.css?v=1.0">

      </head>

      <body>
        <div className="img-container" style="display: flex;justify-content: center;align-items: center;border-radius: 5px;overflow: hidden; font-family: 'helvetica', 'ui-sans';">
              </div>
              <div className="container" style="margin-left: 20px;margin-right: 20px;">
              <h3>Hello, ${req.body.email} 👋</h3>
              <div style="font-size: 16px;">
              <p>Thankyou for contacting me through my website. I'm excited to work with you.</p>
              <p><span className="spantext" style="font-weight: bold;">Reply</span> to this email with your requirements and I will get back to you.</p>
              <p>Meanwhile, <a className="blog" href="https://carsonrodrigues.com/blog/" style="text-decoration: none;color: blue;font-weight: bold;">checkout my blog</a> to get more insights about my work.</p>
              <p>Or simply, just say Hi :) <a href="https://wa.me/917020286635?text=Hi" target="__blank" className="whatsapp" style="text-decoration: none;font-weight: bold;background: #10B981;padding: 4px;border-radius: 5px;color: white;">WhatsApp</a></p>
              <br>
              </div>
              <img src="https://carsonrodrigues.com/logo.png" className="logo-image" style="height: 50px;width: 50px;border-radius: 5px;overflow: hidden;">
              <p className="footer" style="font-size: 16px;padding-bottom: 20px;border-bottom: 1px solid #D1D5DB;">Regards<br>Carson Rodrigues<br>Software Developer<br>+91 7020286635</p>
              <div class="footer-links" style="display: flex;justify-content: center;align-items: center;">
                <a href="https://carsonrodrigues.com/" style="text-decoration: none;margin: 8px;color: #9CA3AF;">Website</a>
                <a href="https://carsonrodrigues.com/blog/" style="text-decoration: none;margin: 8px;color: #9CA3AF;">Blog</a>
                <a href="https://github.com/rodriguescarson/" style="text-decoration: none;margin: 8px;color: #9CA3AF;">GitHub</a>
                <a href="https://instagram.com/maninthere/" style="text-decoration: none;margin: 8px;color: #9CA3AF;">Instagram</a>
                <a href="https://linkedin.com/in/rodriguescarson/" style="text-decoration: none;margin: 8px;color: #9CA3AF;">LinkedIn</a>
                <a href="https://twitter.com/carsonmarz/" style="text-decoration: none;margin: 8px;color: #9CA3AF;">Twitter</a>

              </div>
              </div>
      </body>
      </html>`,
    });
  } catch (error) {
    return res.status(error.statusCode || 500).json({ error: error.message });
  }

  return res.status(200).json({ error: "" });
};

NOTE:

Replace from field to your email
Replace to field to the email of the person you want to send the email to
In the html and subject field, insert your custom text
If you don't want to use HTML, change html to text and write the desired text.

Usage

Create an account on Sendgrid

Create an account on sendgrid.
Generate an API KEY

Authenticate sender

Sendgrid requires you to authenticate yourself (email account) which you want the emails to be sent from. For that they have clearly mentioned instructions.

Go to Sender Authentication page.
Create a new sender.
Fill out the form with all your details.
Verify by checking your mail and clicking on Verify button.

Set environment variable

In your .env file, create an entry for SENDGRID_API_KEY and paste the credentials you retrieved from the sendgrid portal.

NOTE: DO NOT push this file to GitHub.

Install @sendgrid/mail node package

npm install @sendgrid/mail
We use two methods from the package: sendgrid.setApiKey() and sendgrid.send()

A live demo of this API can be found on my homepage. I've used Sendgrid on my Contact component on the Home Page and Blog page.

Live Demo