title: AWS Lambda: How to store secret to external API?
body: <p>I'm building a monitoring tool based on AWS Lambda. Given a set of metrics, the Lambdas should be able to send SMS using <a href="https://www.twilio.com" rel="noreferrer">Twilio</a> API. To be able to use the API, Twilio provide an account SID and an auth token. </p>
  
  <p>How and where should I store these secrets?</p>
  
  <p>I'm currently thinking to use <a href="http://aws.amazon.com/kms/" rel="noreferrer">AWS KMS</a> but there might be other better solutions.</p>