Twilio Functions: SMS to Email Twilio with SendGrid Client

twilio-functions-sms-to-email.js

// import sendgrid library
const sendgrid = require('@sendgrid/client')

// target email address
const email = 'address@domain.tld'

// sms email domain
const domain = 'sms.domain.tld'

exports.handler = function (context, event, done) {
  // authenticate with token
  sendgrid.setApiKey(context.SENDGRID_API_KEY)

  // configure request object
  const request = {
    method: 'POST',
    url: '/v3/mail/send',
    body: {
      personalizations: [{
        to: [{ email }]
      }],
      from: {
        email: `${event.From}@${domain}`
      },
      subject: `RE: SMS: ${event.From}`,
      content: [{
        type: 'text/plain', value: event.Body
      }]
    }
  }
  
  sendgrid
    .request(request) // send the email
    .then(() => done(null, new Twilio.twiml.MessagingResponse())) // send TwiML output
    .catch(done) // quiet failure
}