From 716fc06c176b15ad3678ef53805fad6e6e7d28a7 Mon Sep 17 00:00:00 2001
From: Angus Hollands <goosey15@gmail.com>
Date: Wed, 24 Jan 2024 12:23:24 +0000
Subject: [PATCH] fix: polyfill fetch for node16

---
 package-lock.json                       |  3 ++-
 packages/myst-execute/package.json      |  3 ++-
 packages/myst-execute/tests/run.spec.ts | 10 ++++++++++
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index a795774b9..f5314006d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14245,7 +14245,8 @@
         "which": "^4.0.0"
       },
       "devDependencies": {
-        "js-yaml": "^4.1.0"
+        "js-yaml": "^4.1.0",
+        "node-fetch": "^3.3.0"
       }
     },
     "packages/myst-execute/node_modules/isexe": {
diff --git a/packages/myst-execute/package.json b/packages/myst-execute/package.json
index 7914dc98d..f10b0559d 100644
--- a/packages/myst-execute/package.json
+++ b/packages/myst-execute/package.json
@@ -40,6 +40,7 @@
     "which": "^4.0.0"
   },
   "devDependencies": {
-    "js-yaml": "^4.1.0"
+    "js-yaml": "^4.1.0",
+    "node-fetch": "^3.3.0"
   }
 }
diff --git a/packages/myst-execute/tests/run.spec.ts b/packages/myst-execute/tests/run.spec.ts
index 34fe4b55f..d547ea109 100644
--- a/packages/myst-execute/tests/run.spec.ts
+++ b/packages/myst-execute/tests/run.spec.ts
@@ -6,6 +6,16 @@ import { kernelExecutionTransform, launchJupyterServer } from '../src';
 import type { GenericParent } from 'myst-common';
 import { VFile } from 'vfile';
 import { KernelManager, ServerConnection, SessionManager } from '@jupyterlab/services';
+import { default as nodeFetch } from 'node-fetch';
+import { Headers, Request, Response } from 'node-fetch';
+
+// fetch polyfill for node<18
+if (!globalThis.fetch) {
+  globalThis.fetch = nodeFetch as any;
+  globalThis.Headers = Headers as any;
+  globalThis.Request = Request as any;
+  globalThis.Response = Response as any;
+}
 
 type TestCase = {
   title: string;