Configure::write('Slack', [
'token' => 'Your access token', // 'XXXXXXXXX/YYYYYYYYY/zzzzzzzzzzzzzzzzzzzzzzzz'
'channel' => '#generic', // default
'username' => 'cakephp', // default
'icon_emoji' => ':ghost:', // default
]);
<?php
App::uses('Slack', 'CakeSlack.Lib');
....
Slack::send('Hello from CakePHP!');