title: How to stop Google from revoking my refresh token?
body: <p>In their "OAuth 2.0 Playground" tool, Google states the following:</p>
  
  <p>Note: The OAuth Playground will automatically revoke refresh tokens after 24h. You can avoid this by specifying your own application OAuth credentials using the Configuration panel.</p>
  
  <p>It's not clear what my "application OAuth credentials" are and where the Configuration panel is.</p>
  
  <p>Where do I find these?</p>