changed the folder structure. separated the routes and added the authmiddleware for authentication

middlewares/authMiddleware.js

@@ -0,0 +1,21 @@
+const jwt = require("jsonwebtoken");
+
+const verifyToken = (req, res, next) => {
+  const token = req.header("Authorization");
+
+  if (!token) {
+    return res.status(403).send("A token is required for authentication");
+  }
+
+  try {
+    const jwtSecretKey = process.env.JWT_SECRET_KEY || "default_secret_key";
+    const decoded = jwt.verify(token.replace("Bearer ", ""), jwtSecretKey);
+    req.user = decoded;
+  } catch (err) {
+    return res.status(401).send("Invalid Token");
+  }
+
+  return next();
+};
+
+module.exports = verifyToken;