title: How to create USER roles/permissions with MongoDB and Nodejs?
body: <p>I have multiple <strong>Users</strong> in my MongoDB <em>database</em> and I want to create permissons/roles.
  Lets say if i have the permisson/role: <strong>Admin</strong> - only than I can see <em>"a blue colored button or whatever else on the <strong>website</strong>"</em> but <strong>only</strong> if I have the right permissions for that.</p>
  
  <p>So the point is, I dont know, how to set up roles and give my already existing <strong>Users</strong> in my <em>database</em> specific roles.</p>
  
  <p>I would be very happy if someone could help me to clear this question up.</p>