From bf64870957e626a73e0544716a1a41a4ba5093bb Mon Sep 17 00:00:00 2001
From: Damien Arrachequesne <damien.arrachequesne@gmail.com>
Date: Fri, 23 Feb 2024 11:37:12 +0100
Subject: [PATCH] fix: close the adapters when the server is closed

Related:

- https://github.com/socketio/socket.io-mongo-adapter/issues/9
- https://github.com/socketio/socket.io-postgres-adapter/issues/13
- https://github.com/socketio/socket.io-adapter/commit/0e23ff0cc671e3186510f7cfb8a4c1147457296f
---
 lib/index.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/lib/index.ts b/lib/index.ts
index bd77218318..60ab00c4eb 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -742,13 +742,17 @@ export class Server<
    * @param [fn] optional, called as `fn([err])` on error OR all conns closed
    */
   public close(fn?: (err?: Error) => void): void {
-    for (const socket of this.sockets.sockets.values()) {
-      socket._onclose("server shutting down");
-    }
+    this._nsps.forEach((nsp) => {
+      nsp.sockets.forEach((socket) => {
+        socket._onclose("server shutting down");
+      });
+
+      nsp.adapter.close();
+    });
 
     this.engine.close();
 
-    // restore the Adapter prototype
+    // restore the Adapter prototype, when the Socket.IO server was attached to a uWebSockets.js server
     restoreAdapter();
 
     if (this.httpServer) {