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Normalize Telephone Number

Useful for Studio to read out telephone numbers as telephone number rather then large numbers

// Description
// Normalize Telephone Number
// Useful for Studio to read out telephone numbers as telephone number rather then large numbers

exports.handler = async function (context, event, callback) {
  // Make sure under Functions Global Config tab:
  // "Add my Twilio Credentials (ACCOUNT_SID) and (AUTH_TOKEN) to ENV" is CHECKED
  const twilioClient = context.getTwilioClient();

  // Pass in From as a URL query parameter
  // Example: https://x.x.x.x/<path>?From=%2b15108675310
  let from = event.From || '+15095550100';

  let result = await twilioClient.lookups
    .phoneNumbers(from)
    .fetch({ countryCode: 'US' });

  result = {
    normalizedNum: result.nationalFormat,
  };

  return callback(null, result);
};
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