email-sender.js

const sendgridClient = require('@sendgrid/client')

const sendEmail = (message, res) => {
  sendgridClient.setApiKey(process.env.SENDGRID_KEY)

  const request = {
    method: 'POST',
    url: '/v3/mail/send',
    body: message,
  }

  sendgridClient
    .request(request)
    .then(([response, body]) => {
      console.log('Response: ', response.statusCode)
      console.log('Body: ', body)

      res.sendStatus(response.statusCode)
    })
    .catch((error) => {
      console.log('Error sending email: ', error)

      res.status(error.code).send(error.message)
    })
}

module.exports = sendEmail