feat: add archlinux

api/services/archlinux/[query].ts

@@ -0,0 +1,28 @@
+import { send, sendError, fetch } from '../../../util/http';
+import { NowRequest, NowResponse } from '@vercel/node';
+
+export default async function handler(
+  req: NowRequest,
+  res: NowResponse
+): Promise<void> {
+  const { query } = req.query;
+
+  if (!query || typeof query !== 'string') {
+    return sendError(res, new Error('No query given'));
+  }
+
+  if (/[^a-zA-Z0-9_-]/.test(query)) {
+    return sendError(res, new Error('Invalid characters'));
+  }
+
+  try {
+    const response = await fetch(
+      `https://archlinux.org/packages/?sort=&q=${encodeURIComponent(query)}`,
+      'GET'
+    ).then((res) => res.text());
+    const availability = !/<div id="exact-matches"/.test(response);
+    send(res, { availability });
+  } catch (err) {
+    sendError(res, err);
+  }
+}