add books api

src/routes/api/books/+server.ts

@@ -0,0 +1,38 @@
+import { error } from "@sveltejs/kit";
+import type { RequestHandler } from "./$types";
+
+export const GET: RequestHandler = async ({ url, locals: { supabase } }) => {
+  const username = String(url.searchParams.get("username"));
+  const status = String(url.searchParams.get("status"));
+  const limit = Number(url.searchParams.get("limit") || 10);
+
+  if (!username) {
+    throw error(400, "username is required");
+  }
+
+  if (!status) {
+    throw error(400, "status is required");
+  }
+
+  const { data: user, error: user_error } = await supabase
+    .from("users")
+    .select()
+    .eq("username", username)
+    .single();
+
+  if (user_error) {
+    throw error(404, "User not found");
+  }
+
+  const { data: books, error: books_error } = await supabase
+    .from("books")
+    .select()
+    .eq("owner", user.id)
+    .eq("status", status)
+    .order("finished", { ascending: false })
+    .limit(limit);
+
+  if (books_error) throw error;
+
+  return new Response(JSON.stringify(books));
+};