Send emails using Sendgrid with google appscript

Question

I am creating a googlesheet addon to send mails.And for sending mails I am using sendgrid. I cannot find any documentation or example code for sending mails with Google Appscrip

Answer 1

For anyone who has this issue in the future with Transactional Email Template:

https://sendgrid.com/docs/ui/sending-email/how-to-send-an-email-with-dynamic-transactional-templates/

This is the function to send (similar to the answer of Nikil Mathew, but for transactional email template with dynamic data):

export const sendBySendGrid = (toEmail, templateId, dynamicTemplateData) => {
  const headers = {
    Authorization: `Bearer ${process.env.SENDGRID_API_KEY}`,
    'Content-Type': 'application/json',
  }

  const body = {
    from: {
      email: process.env.SENDGRID_FROM_EMAIL,
      name: process.env.SENDGRID_FROM_NAME,
    },
    personalizations: [
      {
        to: [
          {
            email: toEmail,
          },
        ],
        dynamic_template_data: dynamicTemplateData,
      },
    ],
    template_id: templateId,
  }

  const options = {
    method: 'POST',
    headers,
    payload: JSON.stringify(body),
  }

  const response = UrlFetchApp.fetch('https://api.sendgrid.com/v3/mail/send', options)

  Logger.log(response)
}

You can update process.env.SENDGRID_API_KEY, process.env.SENDGRID_FROM_EMAIL, process.env.SENDGRID_FROM_NAME with your SendGrid credentials