With this program, you can completely copy the database at runtime

Edit user,pass host and DB name

var masterDb = mysql.createPool({
	host: "127.0.0.1",
	user: "root",
	password: "",
	database: "db1",
	charset : 'utf8mb4'
});

var mirorreDb = mysql.createPool({
	multipleStatements: true,
	host: "127.0.0.1",
	user: "root",
	password: "",
	database: "db2",
	charset : 'utf8mb4'	
});