How to

Send an order note to an external system

<?php

namespace MyVendor\MyModule\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Simpler\Checkout\Event\Event;
use Simpler\Checkout\Event\Submit\AfterOrderNoteCreatedEvent;

class MyObserver implements ObserverInterface
{
    public function execute(Observer $observer)
    {
        /** @var AfterOrderNoteCreatedEvent $event */
        $event = $observer->getData(Event::KEY);

        if ($note = $event->getNote()){
            $orderId = $event->getOrder()->getEntityId();
            // Todo: Send $note to external system for order with id $orderId.
        }
    }
}

Expose available pickup locations

<?php

namespace  MyVendor\MyModule\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Simpler\Checkout\Api\Data\PickupLocationInterfaceFactory;
use Simpler\Checkout\Event\PickupLocationsRequestedEvent;
use Simpler\Checkout\Event\Event;

class Foo implements ObserverInterface
{
    /**
     * @var PickupLocationInterfaceFactory
     */
    private $factory;

    public function __construct(PickupLocationInterfaceFactory $factory)
    {
        $this->factory = $factory;
    }

    public function execute(Observer $observer)
    {
        /** @var PickupLocationsRequestedEvent $event */
        $event = $observer->getData(Event::KEY);

        $locations = $event->getPickupLocations();
        
        // Todo: Fetch stored locations instead of hardcoding them.
        $location1 = $this->factory->create()->setId('foo')->setName('Foo');
        $location2 = $this->factory->create()->setId('bar')->setName('Bar');

        $locations->addPickupLocation($location1);
        $locations->addPickupLocation($location2);
    }

}

Get the store pickup id

<?php

namespace MyVendor\MyModule\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Simpler\Checkout\Event\Event;
use Simpler\Checkout\Event\Submit\AfterShippingMethodAddedEvent;

class MyObserver implements ObserverInterface
{
    public function execute(Observer $observer)
    {
        /** @var AfterShippingMethodAddedEvent $event */
        $event = $observer->getData(Event::KEY);

        $storeID = $event->getPickupStoreId();
        // Todo: Store id for later usage.
    }
}

Get invoicing data

<?php

namespace MyVendor\MyModule\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Simpler\Checkout\Event\Event;
use Simpler\Checkout\Event\Submit\AfterCustomerInvoiceCreated;

class MyObserver implements ObserverInterface
{
    public function execute(Observer $observer)
    {
        /** @var AfterCustomerInvoiceCreated $event */
        $event = $observer->getData(Event::KEY);

        $invoice = $event->getInvoice();
		// $invoice->getCompanyName();
        // $invoice->getActivity();
        // $invoice->getTaxId();
        // $invoice->getTaxAuthority();
        // $invoice->getCompanyAddress();
    }
}