From 64a9db7324ee9b3003080da469853b329e6a0d8c Mon Sep 17 00:00:00 2001
From: Kharec <sandro@cazzaniga.fr>
Date: Sun, 28 Dec 2025 17:29:10 +0100
Subject: [PATCH] fix: prevent double-rendering in async route handlers

---
 lib/Urupam/App.pm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/Urupam/App.pm b/lib/Urupam/App.pm
index 1569f5c..664f484 100644
--- a/lib/Urupam/App.pm
+++ b/lib/Urupam/App.pm
@@ -38,11 +38,13 @@ sub startup {
             $c->render_later;
             $c->db->ping->then(
                 sub {
+                    return if $c->stash->{rendered};
                     $c->render( json => { status => 'ok' } );
                 }
             )->catch(
                 sub {
                     my $err = shift;
+                    return if $c->stash->{rendered};
                     $c->app->log->error("Health check DB error: $err");
                     $c->render(
                         json => {
@@ -98,9 +100,10 @@ sub startup {
                 return;
             }
 
-            $url_service->get_original_url($short_code)->then(
+            return $url_service->get_original_url($short_code)->then(
                 sub {
                     my $original_url = shift;
+                    return if $c->stash->{rendered};
                     if ($original_url) {
                         $c->redirect_to($original_url);
                     }
@@ -114,6 +117,7 @@ sub startup {
             )->catch(
                 sub {
                     my $err = shift;
+                    return if $c->stash->{rendered};
                     $c->app->log->error("Redirect lookup error: $err");
                     $c->render(
                         json   => { error => 'Internal server error' },