const mariadb = require('mariadb/callback');
const conn = mariadb.createConnection({
	host: 'localhost', 
	database: 'test02',
	user: 'test02', 
	password: 'titok'
});

conn.query("insert into utazok (nev, telepules) values (?, ?)", 
    ["Pataki Sándor", "Szolnok"], 
    (err, res) => {
        console.log(res);
        conn.end();
});