how to manage users and roles using koa koa-passport with rethinkdb

Question

I am new to koa. i want to implement a simple admin panel with users and roles. is there any package available for managing roles with koa and rethink db. i am using koa-passport for basic authentication.

Answer 1

You haven't provided much info, but I'll try to help you get started.

Passport is just for authentication aka login/logout.

Sounds like you want an authorization system (a system that determines what a user is allowed to do, like if they are allowed to view the admin panel). This system doesn't need to touch your authentication system.

The simplest solution is to add a role field to your users table that's always set to "ADMIN", "MEMBER" (default), or "BANNED".

Using Passport, if a user is logged in, attach them to the request:

if (user) {
  req.user = user;
}

Now in your routes you can just check user.role to implement your authorization check:

app.get('/admin', function(req, res) {
  // Send a 403 Forbidden error if the user is not an ADMIN
  if (!req.user || req.user.role !== 'ADMIN') {
    return res.status(403).send('Unauthorized');
  }
  res.render('admin.html', { data: ... });
});

That's the basis of a role-based authorization system, though very basic.