mysql with sequelize

sequelize로 mysql setting
model.js

var Sequelize = require("sequelize");
var sequelize;

sequelize = new Sequelize("class101","root","((pwd))",{
    host:"localhost",
    port:3306,
    dialect:"mysql",
    timezone:"+10:55",
    define:{
        charset:"utf8",
        collate:"utf8_general_ci",
        timestamps:true,
        freezeTableName:true
    }
});

var db = {};
db.sequelize = sequelize;
db.Sequelize = Sequelize;
module.exports = db;

app.js

const db = require('./model/db');

app.listen(3000, function(req,res){
db.sequelize.sync({force:false}); //database서버 전원기능
console.log("서버가 실행중");
})