Edit database.js

config/database.js

-const { Sequelize } = require('sequelize');
+require('dotenv').config();
+const mysql = require('mysql2');
 
-const sequelize = new Sequelize(
-  process.env.DB_NAME,
-  process.env.DB_USER,
-  process.env.DB_PASSWORD,
-  {
+// สร้างการเชื่อมต่อฐานข้อมูล
+const db = mysql.createConnection({
   host: process.env.DB_HOST,
-    dialect: 'mysql',
-    logging: false,
-  }
-);
-
-module.exports = sequelize; 
+  user: process.env.DB_USER,
+  password: process.env.DB_PASSWORD,
+  database: process.env.DB_NAME,
+  port: process.env.DB_PORT
+});
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