#12

backend/app/controllers/preview_controller.rb

@@ -20,7 +20,7 @@ class PreviewController < ApplicationController
     return head :unauthorized unless current_user
 
     url = params[:url]
-    return head :bad_request unless url.present?
+    return head :bad_request if url.blank?
 
     path = Rails.root.join('tmp', "thumb_#{ SecureRandom.hex }.png")
     system("node #{ Rails.root }/lib/screenshot.js #{ Shellwords.escape(url) } #{ path }")

backend/app/controllers/users_controller.rb

@@ -14,6 +14,13 @@ class UsersController < ApplicationController
                  end
   end
 
+  def renew
+    user = current_user
+    user.inheritance_code = SecureRandom.uuid
+    user.save!
+    render json: { code: user.inheritance_code }
+  end
+
   def me
     user = User.find_by(inheritance_code: params[:code])
     render(if user