Example 5-5. Logging and rethrowing an error

function getReportData() {
	return db.connect().then(function (connection) {
		return db.query(connection, 'select something');
	}).catch(function (err) {
		console.log('An error occurred while getting the data');
		if (err && err.message) console.log(err.message);
		throw err; // Must re-throw if you want the rejection to propagate further
	});
}