From 35be04f6aa540c9171bec23f6dfa66beb08b9f8d Mon Sep 17 00:00:00 2001
From: Dario Piotrowicz <dario@cloudflare.com>
Date: Fri, 7 Feb 2025 17:42:40 +0000
Subject: [PATCH] fix: make `patchAsyncStorage` work with non-mutable
 `node:module` modules

---
 .changeset/seven-mirrors-sleep.md                | 5 +++++
 packages/open-next/src/core/patchAsyncStorage.ts | 8 ++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/seven-mirrors-sleep.md

diff --git a/.changeset/seven-mirrors-sleep.md b/.changeset/seven-mirrors-sleep.md
new file mode 100644
index 000000000..088675e88
--- /dev/null
+++ b/.changeset/seven-mirrors-sleep.md
@@ -0,0 +1,5 @@
+---
+"@opennextjs/aws": patch
+---
+
+fix: make `patchAsyncStorage` work with non-mutable `node:module` modules
diff --git a/packages/open-next/src/core/patchAsyncStorage.ts b/packages/open-next/src/core/patchAsyncStorage.ts
index 040fa8ebc..32cb3250e 100644
--- a/packages/open-next/src/core/patchAsyncStorage.ts
+++ b/packages/open-next/src/core/patchAsyncStorage.ts
@@ -1,9 +1,9 @@
-const mod = require("node:module");
+let mod = require("node:module");
 
 const resolveFilename = mod._resolveFilename;
 
 export function patchAsyncStorage() {
-  mod._resolveFilename = ((
+  const _resolveFilename = ((
     originalResolveFilename: typeof resolveFilename,
     request: string,
     parent: any,
@@ -29,4 +29,8 @@ export function patchAsyncStorage() {
 
     // We use `bind` here to avoid referencing outside variables to create potential memory leaks.
   }).bind(null, resolveFilename);
+  mod = {
+    ...mod,
+    _resolveFilename,
+  };
 }