asynchronous-php.md

description
Running the code asynchronously

Asynchronous PHP

Demo

{% embed url="https://github.com/ecotoneframework/quickstart-examples/tree/main/Asynchronous" %}

{% embed url="https://github.com/ecotoneframework/quickstart-examples/tree/main/RefactorToReactiveSystem" %} Step by step refactor from synchronous code to full resilient asynchronous code {% endembed %}

Read Blog Post

Read more about Asynchronous in PHP and Ecotone

Building Reactive Message-Driven Systems in PHP

Code Example

Let's create Event Order was placed.

class OrderWasPlaced
{
    private string $orderId;
    private string $productName;

    public function __construct(string $orderId, string $productName)
    {
        $this->orderId = $orderId;
        $this->productName = $productName;
    }

    public function getOrderId(): string
    {
        return $this->orderId;
    }

    public function getProductName(): string
    {
        return $this->productName;
    }
}

And Event Handler that will be listening to the OrderWasPlaced.

class NotificationService
{
    const ASYNCHRONOUS_MESSAGES = "asynchronous_messages";

    #[Asynchronous("asynchronous_messages")]
    #[EventHandler(endpointId:"notifyAboutNeworder")]
    public function notifyAboutNewOrder(OrderWasPlaced $event) : void
    {
        echo "Handling asynchronously: " . $event->getProductName() . "\n";
    }
}

Let's Ecotone that we want to run this Event Handler Asynchronously using RabbitMQ

class Configuration
{
    #[ServiceContext]
    public function enableRabbitMQ()
    {
        return AmqpBackedMessageChannelBuilder::create(NotificationService::ASYNCHRONOUS_MESSAGES);
    }
}

Running The Example

$eventBus->publish(new OrderWasPlaced(1, "Milk"));

# Running asynchronous consumer
$messagingSystem->run("asynchronous_messages");