Hi, my nodejs has connect ETIMEDOUT error. i wonder what is happening.

this is my connection on my nodejs
var mysql = require(‘mysql’);

var con = mysql.createConnection({
host: “db-mysql-xxx-xxx-do-user-xxx-0.a.db.ondigitalocean.com”,
user: “xxx”,
password: 'xxx’,
database: “xxx”,
multipleStatements:true,
port: 8889,
queryTimeout: 6000,
connectTimeout: 60000,
});

con.connect(function (err){
if(err) throw err;
});

module.exports = con;