From 90c0016397fd3c4c0ac0183fd44a999c8cd90dcb Mon Sep 17 00:00:00 2001
From: Andrew Chou <andrewchou@fastmail.com>
Date: Mon, 23 Sep 2024 14:36:43 -0400
Subject: [PATCH] fix: close idle connections when stopping FastifyController

---
 src/fastify-controller.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/fastify-controller.js b/src/fastify-controller.js
index a84c600a5..66e3a2948 100644
--- a/src/fastify-controller.js
+++ b/src/fastify-controller.js
@@ -64,7 +64,13 @@ export class FastifyController {
 
   async #stopServer() {
     const { server } = this.#fastify
-    await promisify(server.close.bind(server))()
+
+    const closePromise = promisify(server.close.bind(server))()
+
+    // We call this after `server.close()` as recommended by the Node docs (see https://nodejs.org/docs/latest-v20.x/api/http.html#servercloseidleconnections)
+    server.closeIdleConnections()
+
+    await closePromise
   }
 
   /**