From 410977189016b42516b84b8addd53699184baba3 Mon Sep 17 00:00:00 2001
From: Alex Hultman <alexhultman@gmail.com>
Date: Tue, 1 Nov 2022 06:01:20 +0100
Subject: [PATCH] Filter should be builder pattern

---
 src/App.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/App.h b/src/App.h
index 46d3912..751fd16 100644
--- a/src/App.h
+++ b/src/App.h
@@ -149,8 +149,10 @@ public:
     }
 
     /* Attaches a "filter" function to track socket connections/disconnections */
-    void filter(MoveOnlyFunction<void(HttpResponse<SSL> *, int)> &&filterHandler) {
+    TemplatedApp &&filter(MoveOnlyFunction<void(HttpResponse<SSL> *, int)> &&filterHandler) {
         httpContext->filter(std::move(filterHandler));
+
+        return std::move(*this);
     }
 
     /* Publishes a message to all websocket contexts - conceptually as if publishing to the one single