diff --git a/src/app.js b/src/app.js
new file mode 100644
index 0000000..0f35ff9
--- /dev/null
+++ b/src/app.js
@@ -0,0 +1,44 @@
+import fetch from 'dva/fetch';
+
+export const dva = {
+  config: {
+    onError(err) {
+      err.preventDefault();
+    },
+  },
+};
+
+let authRoutes = {};
+
+function ergodicRoutes(routes, authKey, authority) {
+  routes.forEach(element => {
+    if (element.path === authKey) {
+      if (!element.authority) element.authority = []; // eslint-disable-line
+      Object.assign(element.authority, authority || []);
+    } else if (element.routes) {
+      ergodicRoutes(element.routes, authKey, authority);
+    }
+    return element;
+  });
+}
+
+export function patchRoutes(routes) {
+  Object.keys(authRoutes).map(authKey =>
+    ergodicRoutes(routes, authKey, authRoutes[authKey].authority)
+  );
+  window.g_routes = routes;
+}
+
+export function render(oldRender) {
+  fetch('/api/auth_routes')
+    .then(res => res.json())
+    .then(
+      ret => {
+        authRoutes = ret;
+        oldRender();
+      },
+      () => {
+        oldRender();
+      }
+    );
+}