diff --git a/example/main.dart b/example/main.dart
new file mode 100644
index 00000000..e69de29b
diff --git a/lib/src/csrf_filter.dart b/lib/src/csrf_filter.dart
new file mode 100644
index 00000000..df0e8938
--- /dev/null
+++ b/lib/src/csrf_filter.dart
@@ -0,0 +1,19 @@
+import 'dart:async';
+import 'package:angel_framework/angel_framework.dart';
+import 'cookie_signer.dart';
+
+class CsrfToken {
+  final String value;
+
+  CsrfToken(this.value);
+}
+
+class CsrfFilter {
+  final CookieSigner cookieSigner;
+
+  CsrfFilter(this.cookieSigner);
+
+  Future<CsrfToken> readCsrfToken(RequestContext req) async {
+    
+  }
+}