The action 'index' could not be found for LoginController

localhost:3000/login/login

No route matches [GET] "/login/login"

Prefix Verb URI Pattern                             Controller#Action
       GET  /:controller(/:action:(/:id))(.:format) :controller#:action

# config/routes.rb

# blacklisting - these are not in your controller
resource :users, exclude: [:show, :destroy], via: [:get, :post]

# whitelisting - these are in your controller
resource :users, only: [:index], via: [:get, :post]

#config/routes.rb

resource :login, only: [:index], via: [:get, :post]
match '/login/login' => 'login#login', via: [:get, :post]

def index
end

class LoginController < ApplicationController
  def login
  end
end

get 'login/login'