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

config/db.js

@@ -0,0 +1,21 @@
+const mysql = require("mysql2");
+const dotenv = require("dotenv");
+
+dotenv.config();
+
+const db = mysql.createConnection({
+  host: process.env.DB_HOST,
+  user: process.env.DB_USER,
+  password: process.env.DB_PASSWORD,
+  database: process.env.DB_NAME,
+});
+
+db.connect((err) => {
+  if (err) {
+    console.error("Database connection failed:", err.stack);
+    return;
+  }
+  console.log("Connected to the MySQL database.");
+});
+
+module.exports = db;