diff --git a/framework/core/js/src/admin/routes.js b/framework/core/js/src/admin/routes.ts
similarity index 90%
rename from framework/core/js/src/admin/routes.js
rename to framework/core/js/src/admin/routes.ts
index 9c3468fde..6cdda32f3 100644
--- a/framework/core/js/src/admin/routes.js
+++ b/framework/core/js/src/admin/routes.ts
@@ -1,3 +1,4 @@
+import AdminApplication from './AdminApplication';
 import DashboardPage from './components/DashboardPage';
 import BasicsPage from './components/BasicsPage';
 import PermissionsPage from './components/PermissionsPage';
@@ -9,10 +10,8 @@ import ExtensionPageResolver from './resolvers/ExtensionPageResolver';
 
 /**
  * The `routes` initializer defines the forum app's routes.
- *
- * @param {App} app
  */
-export default function (app) {
+export default function (app: AdminApplication) {
   app.routes = {
     dashboard: { path: '/', component: DashboardPage },
     basics: { path: '/basics', component: BasicsPage },
diff --git a/framework/core/js/src/common/Application.tsx b/framework/core/js/src/common/Application.tsx
index 461b25952..6bd72e227 100644
--- a/framework/core/js/src/common/Application.tsx
+++ b/framework/core/js/src/common/Application.tsx
@@ -34,11 +34,7 @@ import type { ComponentAttrs } from './Component';
 
 export type FlarumScreens = 'phone' | 'tablet' | 'desktop' | 'desktop-hd';
 
-export type FlarumGenericRoute = RouteItem<
-  Record<string, unknown>,
-  Component<{ routeName: string; [key: string]: unknown }>,
-  Record<string, unknown>
->;
+export type FlarumGenericRoute = RouteItem<any, any, any>;
 
 export interface FlarumRequestOptions<ResponseType> extends Omit<Mithril.RequestOptions<ResponseType>, 'extract'> {
   errorHandler?: (error: RequestError) => void;
@@ -80,14 +76,14 @@ export type RouteItem<
       /**
        * The component to render when this route matches.
        */
-      component: { new (): Comp };
+      component: new () => Comp;
       /**
        * A custom resolver class.
        *
        * This should be the class itself, and **not** an instance of the
        * class.
        */
-      resolverClass?: { new (): DefaultResolver<Attrs, Comp, RouteArgs> };
+      resolverClass?: new (component: new () => Comp, routeName: string) => DefaultResolver<Attrs, Comp, RouteArgs>;
     }
   | {
       /**
diff --git a/framework/core/js/src/common/resolvers/DefaultResolver.ts b/framework/core/js/src/common/resolvers/DefaultResolver.ts
index 68db9be78..a5473c31a 100644
--- a/framework/core/js/src/common/resolvers/DefaultResolver.ts
+++ b/framework/core/js/src/common/resolvers/DefaultResolver.ts
@@ -15,10 +15,10 @@ export default class DefaultResolver<
   RouteArgs extends Record<string, unknown> = {}
 > implements RouteResolver<Attrs, Comp, RouteArgs>
 {
-  component: { new (): Comp };
+  component: new () => Comp;
   routeName: string;
 
-  constructor(component: { new (): Comp }, routeName: string) {
+  constructor(component: new () => Comp, routeName: string) {
     this.component = component;
     this.routeName = routeName;
   }
diff --git a/framework/core/js/src/forum/ForumApplication.ts b/framework/core/js/src/forum/ForumApplication.ts
index 6f20d8ff5..f6ae27541 100644
--- a/framework/core/js/src/forum/ForumApplication.ts
+++ b/framework/core/js/src/forum/ForumApplication.ts
@@ -10,7 +10,7 @@ import Composer from './components/Composer';
 import DiscussionRenamedNotification from './components/DiscussionRenamedNotification';
 import CommentPost from './components/CommentPost';
 import DiscussionRenamedPost from './components/DiscussionRenamedPost';
-import routes from './routes';
+import routes, { makeRouteHelpers } from './routes';
 import alertEmailConfirmation from './utils/alertEmailConfirmation';
 import Application from '../common/Application';
 import Navigation from '../common/components/Navigation';
@@ -73,10 +73,14 @@ export default class ForumApplication extends Application {
    */
   discussions: DiscussionListState = new DiscussionListState({});
 
+  route: typeof Application.prototype.route & ReturnType<typeof makeRouteHelpers>;
+
   constructor() {
     super();
 
     routes(this);
+
+    this.route = Object.assign({}, (Object.getPrototypeOf(Object.getPrototypeOf(this)) as Application).route.bind(this), makeRouteHelpers(this));
   }
 
   /**
diff --git a/framework/core/js/src/forum/routes.js b/framework/core/js/src/forum/routes.ts
similarity index 55%
rename from framework/core/js/src/forum/routes.js
rename to framework/core/js/src/forum/routes.ts
index 6f10c27c5..90dd90fc1 100644
--- a/framework/core/js/src/forum/routes.js
+++ b/framework/core/js/src/forum/routes.ts
@@ -1,3 +1,4 @@
+import ForumApplication from './ForumApplication';
 import IndexPage from './components/IndexPage';
 import DiscussionPage from './components/DiscussionPage';
 import PostsUserPage from './components/PostsUserPage';
@@ -5,13 +6,14 @@ import DiscussionsUserPage from './components/DiscussionsUserPage';
 import SettingsPage from './components/SettingsPage';
 import NotificationsPage from './components/NotificationsPage';
 import DiscussionPageResolver from './resolvers/DiscussionPageResolver';
+import Discussion from '../common/models/Discussion';
+import Post from '../common/models/Post';
+import User from '../common/models/User';
 
 /**
  * The `routes` initializer defines the forum app's routes.
- *
- * @param {App} app
  */
-export default function (app) {
+export default function (app: ForumApplication) {
   app.routes = {
     index: { path: '/all', component: IndexPage },
 
@@ -25,40 +27,34 @@ export default function (app) {
     settings: { path: '/settings', component: SettingsPage },
     notifications: { path: '/notifications', component: NotificationsPage },
   };
+}
 
-  /**
-   * Generate a URL to a discussion.
-   *
-   * @param {Discussion} discussion
-   * @param {Integer} [near]
-   * @return {String}
-   */
-  app.route.discussion = (discussion, near) => {
-    return app.route(near && near !== 1 ? 'discussion.near' : 'discussion', {
-      id: discussion.slug(),
-      near: near && near !== 1 ? near : undefined,
-    });
-  };
+export function makeRouteHelpers(app: ForumApplication) {
+  return {
+    /**
+     * Generate a URL to a discussion.
+     */
+    discussion: (discussion: Discussion, near: number) => {
+      return app.route(near && near !== 1 ? 'discussion.near' : 'discussion', {
+        id: discussion.slug(),
+        near: near && near !== 1 ? near : undefined,
+      });
+    },
 
-  /**
-   * Generate a URL to a post.
-   *
-   * @param {Post} post
-   * @return {String}
-   */
-  app.route.post = (post) => {
-    return app.route.discussion(post.discussion(), post.number());
-  };
+    /**
+     * Generate a URL to a post.
+     */
+    post: (post: Post) => {
+      return app.route.discussion(post.discussion(), post.number());
+    },
 
-  /**
-   * Generate a URL to a user.
-   *
-   * @param {User} user
-   * @return {String}
-   */
-  app.route.user = (user) => {
-    return app.route('user', {
-      username: user.slug(),
-    });
+    /**
+     * Generate a URL to a user.
+     */
+    user: (user: User) => {
+      return app.route('user', {
+        username: user.slug(),
+      });
+    },
   };
 }