routes.txt

        new_user_session GET      /users/sign_in(.:format)               devise/sessions#new
            user_session POST     /users/sign_in(.:format)               devise/sessions#create
    destroy_user_session DELETE   /users/sign_out(.:format)              devise/sessions#destroy
 user_omniauth_authorize GET|POST /users/auth/:provider(.:format)        users/omniauth_callbacks#passthru {:provider=>/google_oauth2/}
  user_omniauth_callback GET|POST /users/auth/:action/callback(.:format) users/omniauth_callbacks#(?-mix:google_oauth2)
           user_password POST     /users/password(.:format)              devise/passwords#create
       new_user_password GET      /users/password/new(.:format)          devise/passwords#new
      edit_user_password GET      /users/password/edit(.:format)         devise/passwords#edit
                         PUT      /users/password(.:format)              devise/passwords#update
cancel_user_registration GET      /users/cancel(.:format)                devise/registrations#cancel
       user_registration POST     /users(.:format)                       devise/registrations#create
   new_user_registration GET      /users/sign_up(.:format)               devise/registrations#new
  edit_user_registration GET      /users/edit(.:format)                  devise/registrations#edit
                         PUT      /users(.:format)                       devise/registrations#update
                         DELETE   /users(.:format)                       devise/registrations#destroy
       user_confirmation POST     /users/confirmation(.:format)          devise/confirmations#create
   new_user_confirmation GET      /users/confirmation/new(.:format)      devise/confirmations#new
                         GET      /users/confirmation(.:format)          devise/confirmations#show
             user_unlock POST     /users/unlock(.:format)                devise/unlocks#create
         new_user_unlock GET      /users/unlock/new(.:format)            devise/unlocks#new
                         GET      /users/unlock(.:format)                devise/unlocks#show
                    root          /                                      products#list
                products GET      /admin/products(.:format)              products#index
                         POST     /admin/products(.:format)              products#create
             new_product GET      /admin/products/new(.:format)          products#new
            edit_product GET      /admin/products/:id/edit(.:format)     products#edit
                 product GET      /admin/products/:id(.:format)          products#show
                         PUT      /admin/products/:id(.:format)          products#update
                         DELETE   /admin/products/:id(.:format)          products#destroy
              cart_index GET      /cart(.:format)                        cart#index
                         POST     /cart(.:format)                        cart#create
                new_cart GET      /cart/new(.:format)                    cart#new
               edit_cart GET      /cart/:id/edit(.:format)               cart#edit
                    cart GET      /cart/:id(.:format)                    cart#show
                         PUT      /cart/:id(.:format)                    cart#update
                         DELETE   /cart/:id(.:format)                    cart#destroy
                cart_new POST     /cart/new(.:format)                    cart#new
          products_chart GET      /products/chart(.:format)              products#chart