discourse/app/assets/javascripts/admin/addon/routes/admin-permalinks.js

import DiscourseRoute from "discourse/routes/discourse";
import Permalink from "admin/models/permalink";

export default class AdminPermalinksRoute extends DiscourseRoute {
  model() {
    return Permalink.findAll();
  }

  setupController(controller, model) {
    controller.set("model", model);
  }
}