In Magento 1 I can get list of events/observers by debugging dispatchEvent() method from Mage.php like below.

     * Dispatch event
     * Calls all observer callbacks registered for this event
     * and multiple observers matching event name pattern
     * @param string $name
     * @param array $data
     * @return Mage_Core_Model_App
    public static function dispatchEvent($name, array $data = array())
        Varien_Profiler::start('DISPATCH EVENT:'.$name);
        $result = self::app()->dispatchEvent($name, $data);
        Varien_Profiler::stop('DISPATCH EVENT:'.$name);
        return $result;

In magento 2 where I can get list of events/observers?


You can do the same thing you did in Magento 1.x in the method \Magento\Framework\Event\Manager::dispatch().

but it's a difference. You don't have access to the logger.
You will have to inject an instance of the logger in the constructor.

protected $logger;

public function __construct(
    InvokerInterface $invoker, 
    ConfigInterface $eventConfig,
    \Psr\Log\LoggerInterface $logger
    $this->_invoker = $invoker;
    $this->_eventConfig = $eventConfig;
    $this->logger = $logger;

Then you can call in the dispatch method this:


Instead of info you can use all the methods from \Psr\Log\LoggerInterface

| improve this answer | |
  • You are rocking........ – Bojjaiah Oct 15 '15 at 5:56
  • @Marius just a typo with keyword $protected instead of protected $logger. – Haijerome Apr 13 '16 at 6:33

Since this is for "quick debugging", you could avoid multiple edits by doing.

public function dispatch($eventName, array $data = [])
    $logger = \Magento\Framework\App\ObjectManager::getInstance()->get(\Psr\Log\LoggerInterface::class);



@Marius answer is the correct solution.

| improve this answer | |
  • Use \Psr\Log\LoggerInterface::class please. Always. – nevvermind Nov 19 '15 at 17:17
  • @nevvermind .. I tried that before ... Fatal error: Non-static method Psr\Log\LoggerInterface::info() cannot be called statically. Please let me know if you figure out an easier way. – Renon Stewart Nov 19 '15 at 17:26
  • I'm talking about the ::class keyword instead of the literal string FQCN. – nevvermind Nov 19 '15 at 17:43

In my case I can get list of all event by doing below changes which is very short cut like we do in mage.php file of magento1:

Note: I have only tested on magento2.1.1 version so I am not sure for any other version


public function dispatch

write below code to get all event in debug.log file after

$eventName = mb_strtolower($eventName); 

near to line 56

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