README

Simple implementation of Pub/Sub for Hack.

Basic usage

Usage is very simple, You just implement Message the Subscriber.
The following are register to MessagePublisher and just publish a message.

namespace domain;

use HHPack\Publisher\Message;
use HHPack\Publisher\Subscribable;
use HHPack\Publisher\MessagePublisher;

final class DomainMessage implements Message
{
}

final class DomainMessageSubscriber implements Subscribable<Message>
{
  public async function onDomainMessage(DomainMessage $message) : Awaitable<void>
  {
    await async_task1();
    await async_task2();
  }
}

$publisher = new MessagePublisher();
$publisher->registerSubscriber(new DomainMessageSubscriber());

await $publisher->publish(new DomainMessage());

Run the test

You can run the test with the following command.

composer install
composer test