From a8a7cfcbb98c5ca8fff3b4a6d8638e9208690b61 Mon Sep 17 00:00:00 2001
From: Arda TANRIKULU <ardatanrikulu@gmail.com>
Date: Fri, 28 Oct 2022 04:26:12 +0300
Subject: [PATCH] fix(fetch): add duplex to RequestInit if not provided for new
 undici

---
 .changeset/olive-toes-switch.md             |  5 +++++
 packages/fetch/dist/create-node-ponyfill.js |  6 ++++++
 packages/fetch/package.json                 |  2 +-
 yarn.lock                                   | 10 ++++++----
 4 files changed, 18 insertions(+), 5 deletions(-)
 create mode 100644 .changeset/olive-toes-switch.md

diff --git a/.changeset/olive-toes-switch.md b/.changeset/olive-toes-switch.md
new file mode 100644
index 0000000000..e658c6e071
--- /dev/null
+++ b/.changeset/olive-toes-switch.md
@@ -0,0 +1,5 @@
+---
+'@whatwg-node/fetch': patch
+---
+
+Fix for new undici
diff --git a/packages/fetch/dist/create-node-ponyfill.js b/packages/fetch/dist/create-node-ponyfill.js
index a62bf1e4ec..30d91102e4 100644
--- a/packages/fetch/dist/create-node-ponyfill.js
+++ b/packages/fetch/dist/create-node-ponyfill.js
@@ -122,6 +122,9 @@ module.exports = function createNodePonyfill(opts = {}) {
       class Request extends OriginalRequest {
         constructor(requestOrUrl, options) {
           if (typeof requestOrUrl === "string" || requestOrUrl instanceof URL) {
+            if (options != null && typeof options === "object" && !options.duplex) {
+              options.duplex = 'half';
+            }
             super(requestOrUrl, options);
             const contentType = this.headers.get("content-type");
             if (contentType && contentType.startsWith("multipart/form-data")) {
@@ -140,6 +143,9 @@ module.exports = function createNodePonyfill(opts = {}) {
 
       const fetch = function (requestOrUrl, options) {
         if (typeof requestOrUrl === "string" || requestOrUrl instanceof URL) {
+          if (options != null && typeof options === "object" && !options.duplex) {
+              options.duplex = 'half';
+          }
           // We cannot use our ctor because it leaks on Node 18's global fetch
           return originalFetch(requestOrUrl, options);
         }
diff --git a/packages/fetch/package.json b/packages/fetch/package.json
index 01a8d2dec8..5451895ed0 100644
--- a/packages/fetch/package.json
+++ b/packages/fetch/package.json
@@ -24,7 +24,7 @@
     "form-data-encoder": "^1.7.1",
     "formdata-node": "^4.3.1",
     "node-fetch": "^2.6.7",
-    "undici": "^5.10.0",
+    "undici": "^5.12.0",
     "web-streams-polyfill": "^3.2.0"
   },
   "publishConfig": {
diff --git a/yarn.lock b/yarn.lock
index 3998fcd890..da7d0549bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5788,10 +5788,12 @@ unbox-primitive@^1.0.2:
     has-symbols "^1.0.3"
     which-boxed-primitive "^1.0.2"
 
-undici@^5.10.0:
-  version "5.10.0"
-  resolved "https://registry.yarnpkg.com/undici/-/undici-5.10.0.tgz#dd9391087a90ccfbd007568db458674232ebf014"
-  integrity sha512-c8HsD3IbwmjjbLvoZuRI26TZic+TSEe8FPMLLOkN1AfYRhdjnKBU6yL+IwcSCbdZiX4e5t0lfMDLDCqj4Sq70g==
+undici@^5.12.0:
+  version "5.12.0"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-5.12.0.tgz#c758ffa704fbcd40d506e4948860ccaf4099f531"
+  integrity sha512-zMLamCG62PGjd9HHMpo05bSLvvwWOZgGeiWlN/vlqu3+lRo3elxktVGEyLMX+IO7c2eflLjcW74AlkhEZm15mg==
+  dependencies:
+    busboy "^1.6.0"
 
 unicode-canonical-property-names-ecmascript@^2.0.0:
   version "2.0.0"