chore: middleware

src/utils/data/bookByUrl.js

@@ -0,0 +1,26 @@
+import { createClient } from "@supabase/supabase-js";
+
+const SUPABASE_URL = import.meta.env.SUPABASE_URL;
+const SUPABASE_KEY = import.meta.env.SUPABASE_KEY;
+const supabase = createClient(SUPABASE_URL, SUPABASE_KEY);
+
+const bookCache = {};
+
+export async function fetchBookByUrl(url) {
+  if (bookCache[url]) return bookCache[url];
+
+  const { data: book, error } = await supabase
+    .from("optimized_books")
+    .select("*")
+    .eq("url", url)
+    .limit(1);
+
+  if (error || !book) {
+    console.error(`Error fetching book with URL ${url}:`, error);
+    return null;
+  }
+
+  bookCache[url] = book[0];
+
+  return book[0];
+}