Feat/import export (#136)

* added import/export functionality

pages/api/data/index.ts

@@ -0,0 +1,31 @@
+import type { NextApiRequest, NextApiResponse } from "next";
+import { getServerSession } from "next-auth/next";
+import { authOptions } from "@/pages/api/auth/[...nextauth]";
+import getData from "@/lib/api/controllers/data/getData";
+import postData from "@/lib/api/controllers/data/postData";
+
+export default async function users(req: NextApiRequest, res: NextApiResponse) {
+  const session = await getServerSession(req, res, authOptions);
+
+  if (!session?.user.id) {
+    return res.status(401).json({ response: "You must be logged in." });
+  } else if (session?.user?.isSubscriber === false)
+    res.status(401).json({
+      response:
+        "You are not a subscriber, feel free to reach out to us at support@linkwarden.app in case of any issues.",
+    });
+
+  if (req.method === "GET") {
+    const data = await getData(session.user.id);
+    if (data.status === 200)
+      return res
+        .setHeader("Content-Type", "application/json")
+        .setHeader("Content-Disposition", "attachment; filename=backup.json")
+        .status(data.status)
+        .json(data.response);
+  } else if (req.method === "POST") {
+    console.log(JSON.parse(req.body));
+    const data = await postData(session.user.id, JSON.parse(req.body));
+    return res.status(data.status).json({ response: data.response });
+  }
+}