Connect OSM account

app/routes/oauth/osm-callback.js

@@ -0,0 +1,17 @@
+import Route from '@ember/routing/route';
+import { service } from '@ember/service';
+
+export default class OauthOsmCallbackRoute extends Route {
+  @service osmAuth;
+  @service router;
+
+  async model() {
+    try {
+      await this.osmAuth.handleCallback();
+    } catch (e) {
+      console.error('Failed to handle OSM OAuth callback', e);
+    } finally {
+      this.router.transitionTo('index');
+    }
+  }
+}