diff --git a/generate_secret.js b/generate_secret.js
deleted file mode 100644
index 2293b89..0000000
--- a/generate_secret.js
+++ /dev/null
@@ -1,5 +0,0 @@
-const crypto = require("crypto");
-
-const secret = crypto.randomBytes(64).toString('hex')
-
-console.log(secret)
\ No newline at end of file
diff --git a/lobby.js b/lobby.js
index 54ac2d2..a0464c6 100644
--- a/lobby.js
+++ b/lobby.js
@@ -1,4 +1,6 @@
 const express = require("express");
+const path = require("path");
+const fs = require("fs");
 const app = express();
 const port = 3000;
 
@@ -27,7 +29,13 @@ app.get("/lobby/join", async (req, res) => {
     let lobbyId = req.query.lobbyId;
     let name = req.query.name;
 
-    await joinLobby(lobbyId, name);
+    const users = get_data();
+    const user = (users.find(u => u.username === name))
+    if (!user) {
+        res.sendStatus(401).json({ error: "User doesnt exist are required" });
+    }
+
+    await joinLobby(lobbyId, user.username);
 
     if (!playerMap[lobbyId]) {
         playerMap[lobbyId] = [];
@@ -44,6 +52,25 @@ app.get("/lobby/players", async (req, res) => {
     res.json({ players });
 });
 
+function get_data() {
+    const dataPath = path.join(__dirname, "data.json");
+    if (!fs.existsSync(dataPath)) {
+        fs.writeFileSync(dataPath, JSON.stringify([]));
+    }
+    const data = fs.readFileSync(dataPath);
+    return JSON.parse(data);
+}
+
+function save_data(data) {
+    fs.writeFileSync(path.join(__dirname, "data.json"), JSON.stringify(data, null, 2));
+}
+
+function saveUser(user) {
+    const users = get_data();
+    users.push(user);
+    save_data(users);
+}
+
 app.listen(port, () => {
     console.log("Server is running on port " + port);
 });