use resource_name instead of resource object

Author: RenzoMinelli

app/controllers/devise/passkey_authentication_options_controller.rb

@@ -2,7 +2,7 @@
 
 module Devise
   class PasskeyAuthenticationOptionsController < DeviseController
-    def index
+    def show
       passkey_options =
         WebAuthn::Credential.options_for_get(
           user_verification: "required"

lib/devise/webauthn/helpers/credentials_helper.rb

@@ -23,7 +23,7 @@ def login_with_passkey_button(text = nil, session_path:, button_classes: nil, fo
           method: :post,
           class: form_classes
         ) do |f|
-          tag.webauthn_get(data: { options_url: passkey_authentication_options_path(resource) }) do
+          tag.webauthn_get(data: { options_url: passkey_authentication_options_path(resource_name) }) do
             concat f.hidden_field(:public_key_credential, data: { webauthn_target: "response" })
 
             concat f.button(text, type: "submit", class: button_classes, &block)

lib/devise/webauthn/routes.rb

@@ -8,7 +8,7 @@ class Mapper
       def devise_passkey_authentication(_mapping, controllers)
         resources :passkeys, only: %i[new create destroy], controller: controllers[:passkeys]
 
-        resources :passkey_authentication_options, only: :index,
+        resource :passkey_authentication_options, only: :show,
                                                    controller: controllers[:passkey_authentication_options]
         resources :passkey_registration_options, only: :index, controller: controllers[:passkey_registration_options]
       end

spec/requests/devise/passkey_authentication_options_controller_spec.rb

@@ -3,7 +3,7 @@
 require "spec_helper"
 
 RSpec.describe Devise::PasskeyAuthenticationOptionsController, type: :request do
-  describe "GET #index" do
+  describe "GET #show" do
     it "stores the challenge in session and returns it as json" do
       get account_passkey_authentication_options_path