fix: polyfill fetch for node16

jupyter-book · Jan 24, 2024 · 716fc06 · 716fc06
1 parent 9493bba
commit 716fc06
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Showing 3 changed files with 14 additions and 2 deletions.
diff --git a/package-lock.json b/package-lock.json
diff --git 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
@@ -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;