app/controllers/guests_controller.rb

@@ -6,9 +6,6 @@ require 'csv'
 
 class GuestsController < ApplicationController
   GUEST_PARAMS = { only: %i[id name status], include: { group: { only: %i[id name] } } }.freeze
-
-  skip_before_action :authenticate_user!, only: :update
-
   def index
     render json: Guest.includes(:group)
                       .left_joins(:group)
@@ -34,6 +31,6 @@ class GuestsController < ApplicationController
   private
 
   def guest_params
-    user_signed_in? ? params.expect(guest: %i[name group_id status]) : params.expect(guest: %i[status])
+    params.expect(guest: %i[name group_id status])
   end
 end

app/controllers/invitations_controller.rb

@@ -20,7 +20,7 @@ class InvitationsController < ApplicationController
     invitation = Invitation.includes(:guests).find(params[:id])
 
     if invitation
-      render json: invitation, only: :id, include: { guests: { only: %i[id name status] } }, status: :ok
+      render json: invitation, only: :id, include: { guests: { only: %i[id name] } }, status: :ok
     else
       render json: { error: 'Invitation not found' }, status: :not_found
     end