sso 인증 기능 구현

sso-demo/app.js

@@ -1,3 +1,4 @@
+require('dotenv').config();
 const express = require('express');
 const session = require('express-session');
 const path = require('path');
@@ -12,7 +13,7 @@ app.set('view engine', 'ejs');
 
 // Session middleware setup
 app.use(session({
-    secret: 'a-very-secret-key-that-should-be-in-env-vars', // In production, use environment variables
+    secret: process.env.JWT_SECRET, // In production, use environment variables
     resave: false,
     saveUninitialized: true,
     cookie: { secure: false } // In production, set secure: true if using HTTPS