Added gitignore

middleware/authMiddleware.js

@@ -0,0 +1,20 @@
+const jwt = require('jsonwebtoken');
+
+const authMiddleware = (req, res, next) => {
+const JWT_SECRET = 'secretkey';
+    const authHeader = req.headers.authorization;
+    if (!authHeader || !authHeader.startsWith('Bearer ')) {
+        return res.status(401).json({ error: 'Unauthorized: Missing or invalid token format' });
+    }
+    const token = authHeader.split(' ')[1];
+    try {
+        const decoded = jwt.verify(token, JWT_SECRET); 
+        req.user = decoded; 
+        next();
+    } catch (error) {
+   
+        return res.status(401).json({ error: 'Unauthorized: Invalid token' });
+    }
+};
+
+module.exports = authMiddleware;