diff --git a/route/webapp.php b/route/webapp.php
new file mode 100644
index 0000000..7d5f696
--- /dev/null
+++ b/route/webapp.php
@@ -0,0 +1,17 @@
+<?php
+$routes = read_route_all();
+$webapp_root = $_SERVER["DOCUMENT_ROOT"] . "webapp";
+
+// set DOCUMENT_ROOT forcely
+$_SERVER["DOCUMENT_ROOT"] = $webapp_root;
+
+// set file path
+$appfile_path = $webapp_root . "/" . implode("/", array_slice($routes, 1)) . ".php";
+
+// load file
+if(file_exists($appfile_path)) {
+    include($appfile_path);
+} else {
+    set_error("404 Not Found");
+    show_errors();
+}