feat: Configure global undici dispatcher

src/domain/gitlab-wiki-api.ts

@@ -5,6 +5,7 @@ import path from "path";
 import fs from "fs-extra";
 
 import serverEnv from "src/env/server";
+import { setupUndiciHttpAgent } from "src/pages/api/http-agent";
 
 import { getWikiPage as getStaticWikiPage } from "./gitlab-wiki-static";
 
@@ -36,6 +37,8 @@ const fetchWithTimeout = async (
       ? (id = setTimeout(() => reject(new Error("Timeout")), timeout))
       : undefined
   );
+  setupUndiciHttpAgent();
+
   const fetcher = await fetch(url, options);
   if (id !== undefined) {
     clearTimeout(id);

src/pages/api/http-agent.ts

@@ -0,0 +1,18 @@
+import { ProxyAgent, setGlobalDispatcher } from "undici";
+
+declare global {
+  // eslint-disable-next-line no-var
+  var __undiciProxyAgent__: ProxyAgent | undefined;
+}
+
+export const setupUndiciHttpAgent = () => {
+  const HTTP_PROXY = process.env.HTTP_PROXY;
+  if (!HTTP_PROXY) {
+    return;
+  }
+  if (!globalThis.__undiciProxyAgent__) {
+    console.log("Setting up undici proxy agent: ", HTTP_PROXY);
+    globalThis.__undiciProxyAgent__ = new ProxyAgent(HTTP_PROXY);
+    setGlobalDispatcher(globalThis.__undiciProxyAgent__);
+  }
+};