API return json

main.py

@@ -280,7 +280,7 @@ def get_id():
             c.execute(f"UPDATE users SET balance = balance - 1 WHERE id={tag[1]}")
             conn.commit() 
             c.execute(f"SELECT * FROM users WHERE id={tag[1]}")
-            user = c.fetchall()
+            user = c.fetchall()[0]
             socketio.emit("update", "update")
             return make_response(json.dumps({"username":user[1], "balance":user[2]}))
     socketio.emit("update", "update")