update merge

src/server.ts

@@ -112,8 +112,12 @@ fastify.post("/live", {
   },
 }, (request, reply) => {
     const { code } = request.body;
-    let roomId = generateId();
-    let room = rooms[roomId];
+    let room, roomId;
+    do{
+    	roomId = generateId();  
+    	room = rooms[roomId];
+    } while(room);
+
     room = {
           sockets: [],
           updates: [],