title: Is there a Go framework or package that provides canned user authentication support?
body: <p>I've gotten pretty spoiled by the mature frameworks available in Python (Django/Flask), so as I'm starting to learn Go, I have to wonder if there are any similar frameworks already in existence in Go to django.contrib.auth or Flask-Login?</p>
  
  <p>The main use case is to handle simple user authentication and be able to extend it to accommodate some permissions-based routing within the app.</p>