From b48332f0759805a6150116981008c2898182518c Mon Sep 17 00:00:00 2001
From: Gronod <gordon@i3omb.com>
Date: Fri, 15 May 2026 23:35:16 +0100
Subject: [PATCH] perf: persist qBittorrent clients between requests

- Reuse client instances so auth cookies survive across requests
- Eliminates redundant login round-trips on every dashboard refresh
- Clients still re-authenticate automatically if session expires (403)
---
 server/utils/qbittorrent.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/server/utils/qbittorrent.js b/server/utils/qbittorrent.js
index 2f10284..7073587 100644
--- a/server/utils/qbittorrent.js
+++ b/server/utils/qbittorrent.js
@@ -96,14 +96,19 @@ class QBittorrentClient {
   }
 }
 
+// Persist clients so auth cookies survive between requests
+let persistedClients = null;
+
 function getClients() {
+  if (persistedClients) return persistedClients;
   const instances = getQbittorrentInstances();
   if (instances.length === 0) {
     logToFile('[qBittorrent] No instances configured');
     return [];
   }
-  logToFile(`[qBittorrent] Created ${instances.length} client(s)`);
-  return instances.map(inst => new QBittorrentClient(inst));
+  logToFile(`[qBittorrent] Created ${instances.length} persistent client(s)`);
+  persistedClients = instances.map(inst => new QBittorrentClient(inst));
+  return persistedClients;
 }
 
 async function getAllTorrents() {