Twilio serverless function to forward incoming SMS to Email

smsToEmail.js

const got = require('got');

exports.handler = function(context, event, callback) {
  const requestBody = {
    to: context.TO_EMAIL_ADDRESS,
    from: context.FROM_EMAIL_ADDRESS,
    subject: `New SMS message from: ${event.From}`,
    text: event.Body,
  };
  
  const apiKey = `Basic ${Buffer.from(`api:${context.MAILGUN_API_KEY}`).toString('base64')}`;

  got
    .post('https://api.mailgun.net/v3/notice.autohost.ai/messages', {
      headers: {
        Authorization: apiKey,
      },
      body: requestBody,
    })
    .then(response => {
      let twiml = new Twilio.twiml.MessagingResponse();
      callback(null, twiml);
    })
    .catch(err => {
        console.log(err);
      callback(err);
    });
};