There are two two types possible scopes: Message:SCOPE_MESSAGE_BUS and Message::SCOPE_APP.
The first one instructs the client send messages (if driver supports) to the message bus so other apps can consume those messages.
The second in turns limits the message to the application that sent it. No other apps could receive it.
<?php
use Enqueue\Client\Message;
$message = new Message();
$message->setScope(Message::SCOPE_MESSAGE_BUS);
/** @var \Enqueue\Client\ProducerInterface $producer */
$producer->sendEvent('aTopic', $message);Message sent with a delay set is processed after the delay time exceed. Some brokers may not support it from scratch. In order to use delay feature with RabbitMQ you have to install a delay plugin.
<?php
use Enqueue\Client\Message;
$message = new Message();
$message->setDelay(60); // seconds
/** @var \Enqueue\Client\ProducerInterface $producer */
$producer->sendEvent('aTopic', $message);The message may have an expiration or TTL (time to live). The message is removed from the queue if the expiration exceeded but the message has not been consumed. For example it make sense to send a forgot password email within first few minutes, nobody needs it in an hour.
<?php
use Enqueue\Client\Message;
$message = new Message();
$message->setExpire(60); // seconds
/** @var \Enqueue\Client\ProducerInterface $producer */
$producer->sendEvent('aTopic', $message);You can set a priority If you want a message to be processed quicker than other messages in the queue.
Client defines five priority constants: MessagePriority::VERY_LOW, MessagePriority::LOW, MessagePriority::NORMAL, MessagePriority::HIGH, MessagePriority::VERY_HIGH.
The MessagePriority::NORMAL is default priority.
<?php
use Enqueue\Client\Message;
use Enqueue\Client\MessagePriority;
$message = new Message();
$message->setPriority(MessagePriority::HIGH);
/** @var \Enqueue\Client\ProducerInterface $producer */
$producer->sendEvent('aTopic', $message);Those are self describing things. Usually they are set by Client so you dont have to worry about them. If you do not like what Client set you can always set custom values:
<?php
use Enqueue\Client\Message;
$message = new Message();
$message->setMessageId('aCustomMessageId');
$message->setTimestamp(time());
$message->setContentType('text/plain');
/** @var \Enqueue\Client\ProducerInterface $producer */
$producer->sendEvent('aTopic', $message);