title: How to shorten the expiration time on Firebase auth tokens for testing
body: <p>I am trying to test my refresh token logic using Firebase auth but waiting an hour for it to expire is maddening. The documentation doesn't seem to mention anything about customizing the time: <a href="https://firebase.google.com/docs/auth/admin/create-custom-tokens" rel="nofollow noreferrer">https://firebase.google.com/docs/auth/admin/create-custom-tokens</a></p>
  
  <p>I am signing in with: </p>
  
  <pre><code>firebase
        .doSignInWithEmailAndPassword(email, password)
  </code></pre>
  
  <p>Ideally I would like it to expire in five minutes or less. Anyone know how to do this? </p>
  
  <p>FWIW: I found this discussion (<a href="https://groups.google.com/forum/#!msg/firebase-talk/NWKw28SvBi8/fi4s2l1rAgAJ" rel="nofollow noreferrer">https://groups.google.com/forum/#!msg/firebase-talk/NWKw28SvBi8/fi4s2l1rAgAJ</a>) which makes it sound like it wasn't possible over a year ago, just hoping this has changed or someone has found a workaround since then.</p>