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

src/etc/events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
  <event name="simpler_checkout_pickup_locations_requested">
    <observer name="my_custom_observer" instance="MyVendor\MyModule\Observer\CollectPickupLocations" shared="true" />
  </event>
</config>

src/Observer/CollectPickupLocations.php

<?php
namespace MyVendor\MyModule\Observer;

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

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

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

    public function execute(Observer $observer)
    {
        $locations = $observer->getData('locations');

        // use the SimplerCheckoutFactory we injected in the constructor to create location items
        $location1 = $this->factory->create()->setId('foo')->setName('Foo');
        $location2 = $this->factory->create()->setId('bar')->setName('Bar');

        //mutate the locations object
        $locations->addPickupLocation($location1);
        $locations->addPickupLocation($location2);
    }
}

Get the store pickup id

src/etc/events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
  <event name="simpler_checkout_after_shipping_method_added">
    <observer name="my_custom_observer" instance="MyVendor\MyModule\Observer\SetPickupLocationId" shared="true" />
  </event>
</config>

src/Observer/SetPickupLocationId.php

<?php
namespace MyVendor\MyModule\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;

class SetPickupLocationId implements ObserverInterface
{
    public function execute(Observer $observer)
    {
        $storeId = $observer->getData('store_id');
        $quote = $observer->getData('quote');

        //run only if the shipping method is custom pickup and store id exists
        if (is_null($storeId) || $quote->getShippingMethod() == 'mycustompickup_method') {
          return;
        }

        // mutate the quote with the location id - we're using the quote extension attributes as an example here.
        $quote->getExtensionAttributes()->setPickupLocationId($storeId);
    }
}

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();
    }
}