REST API - dispatch events

Question

I have custom module and my code structure is as per service contact.

app/code/[Vendor]/[Module]/Model/AccountManagement.php

Now i have a dispatch event in my model file

$this->_eventManager->dispatch('vendor_register_success', $eventParams);

As per REST API standard and as per the this solution i added event in specific module where it comes from.

app/code/[Vendor]/[Module]/etc/webapi_rest/events.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="vendor_register_success">
        <observer name="vendor_register_success" instance="[Vendor]\[Module]\Observer\VendorBrandRegister" />
    </event>   
</config>

and My observer looks like this

app/code/[Vendor]/[Module]/Observer/VendorBrandRegister.php

 public function execute(\Magento\Framework\Event\Observer $observer)
    {
        echo "In execute"; exit;
    }

but this event is not dispatching. What am i missing Because as per the solution i need to add events in webapi_rest folder in etc folder.

Answer 1

Try below code for dispatch event.

$this->_eventManager->dispatch('vendor_register_success', [$eventParams]);

Instead of

$this->_eventManager->dispatch('vendor_register_success', $eventParams);

As second parameter should be an array. This may help you.

Answer 2

This can be done by defining events.xml in webapi_rest folder.

vendor/magento/module-quote/etc/webapi_rest/events.xml

Magento is doing it in quote module for sending mail.

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="sales_model_service_quote_submit_success">
        <observer name="sendEmail" instance="Magento\Quote\Observer\Webapi\SubmitObserver" />
    </event>
</config>

Reference 1 - From Vinai Kopp: https://twitter.com/VinaiKopp/status/810897855527485440

Reference 2