Magento 2 - How to get class file from event name observer on stripe payment module

Question

I got this event observer code in the stripe payment module

<event name="payment_method_assign_data_stripecreditcards">
        <observer name="stripecreditcards_payment_gateway_data_assign" instance="Stripeofficial\CreditCards\Observer\DataAssignObserver" />
    </event> 

I looking for dispatch event for payment_method_assign_data_stripecreditcards but I'm not found it on the vendor folder, my goals is get know when and from what class file that make this event name triggered.

Answer 1

You can find event in this file

vendor/magento/module-payment/Model/Method/AbstractMethod.php

and function name is assignData()

  public function assignData(\Magento\Framework\DataObject $data) {
    $this->_eventManager->dispatch(
        'payment_method_assign_data_' . $this->getCode(),
        [
            AbstractDataAssignObserver::METHOD_CODE => $this,
            AbstractDataAssignObserver::MODEL_CODE => $this->getInfoInstance(),
            AbstractDataAssignObserver::DATA_CODE => $data,
        ]
    );

    $this->_eventManager->dispatch(
        'payment_method_assign_data',
        [
            AbstractDataAssignObserver::METHOD_CODE => $this,
            AbstractDataAssignObserver::MODEL_CODE => $this->getInfoInstance(),
            AbstractDataAssignObserver::DATA_CODE => $data,
        ]
    );

    return $this;
}