backend: auth checks

backend/routes/auth/check.js

@@ -0,0 +1,16 @@
+const { User } = require('../../models/User');
+const { generateGuest, generateRandomUrl } = require('./guest');
+
+module.exports = async (req, res) => {
+  const { id, token } = req.query;
+  const user = await User.find({ id, token });
+  const random_url = await generateRandomUrl();
+
+  if (user.length > 0) {
+    return res.send({ success: true, ...user[0].toObject() });
+  }
+
+  const guest = await generateGuest();
+  return res.send({ success: false, ...guest, random_url });
+};
+