Different root routes for authenticated users

[monsteronfire]

Hello friends! Apologies if this has been asked here before, but I was not able to find a similar question. So please let me know if this is a duplicate.

Is there a Rodauth way to have a different root route for authenticated users vs unauthenticated users, similar to the following pattern in Devise?

unauthenticated do
  root 'pages#home'
end

authenticated :user do
    root to: redirect('/dashboard'), as: :authenticated_root
end

I've considered creating a RootController with an index action

class RootController < ApplicationController
  def index
    if rodauth.logged_in?
      redirect_to dashboard_path
    else
      redirect_to home_path
    end
  end
end

Then using that as the root route as follows:

Rails.application.routes.draw do
  root to: "root#index"
end

But there is likely a more elegant way to do it, possibly with Rodauth settings? I'd appreciate learning about how others have handled this. Thank you! 🌸

[janko]

There aren't built-in constraints that correspond to Devise's authenticated & unauthenticated, but you can write custom ones:

constraints -> (r) { !r.env["rodauth"].authenticated? }
  root 'pages#home'
end

constraints -> (r) { r.env["rodauth"].authenticated? }
  root to: redirect('/dashboard'), as: :authenticated_root
end

[monsteronfire]

Awesome, this works for me! Thank you, @janko, I appreciate all the work you've done on this gem 🙏

For anybody who finds this in future, below is how I implemented it in my app.

Add custom route constraints

Create a new custom constraint file

mkdir app/constraints
touch app/constraints/rodauth_authenticated_constraint.rb

Within the file, add two new custom constraint classes

# app/constraints/rodauth_authenticated_constraint.rb

class RodauthAuthenticatedConstraint
  def matches?(request)
    request.env["rodauth"]&.authenticated?
  end
end

class RodauthUnauthenticatedConstraint
  def matches?(request)
    !request.env["rodauth"]&.authenticated?
  end
end

Usage
Use these in your routes file as shown in the code snippet, below:

# config/routes.rb

Rails.application.routes.draw do
  ...

  constraints RodauthAuthenticatedConstraint.new do
    root to: redirect('/dashboard'), as: :authenticated_root
  end

  constraints RodauthUnauthenticatedConstraint.new do
    root to: 'pages#home'
  end
end