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feat(amqp): allow configuration of queue arguments #32

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Merged
christyjacob4 merged 1 commit into from
Feb 6, 2025
Merged

feat(amqp): allow configuration of queue arguments #32

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28 changes: 23 additions & 5 deletions src/Queue/Broker/AMQP.php
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,9 @@
class AMQP implements Publisher, Consumer
{
private ?AMQPChannel $channel = null;
private array $exchangeArguments = [];
private array $queueArguments = [];
private array $consumerArguments = [];

public function __construct(
private readonly string $host,
Expand All @@ -28,6 +31,21 @@ public function __construct(
) {
}

public function setExchangeArgument(string $key, string $value): void
{
$this->exchangeArguments[$key] = $value;
}

public function setQueueArgument(string $key, string $value): void
{
$this->queueArguments[$key] = $value;
}

public function setConsumerArguments(string $key, string $value): void
{
$this->consumerArguments[$key] = $value;
}

public function consume(Queue $queue, callable $messageCallback, callable $successCallback, callable $errorCallback): void
{
$processMessage = function (AMQPMessage $amqpMessage) use ($messageCallback, $successCallback, $errorCallback) {
Expand Down Expand Up @@ -60,19 +78,19 @@ public function consume(Queue $queue, callable $messageCallback, callable $succe
// dead-letter-exchanges (https://www.rabbitmq.com/docs/dlx) for failed messages.

// 1. Declare the exchange and a dead-letter-exchange.
$channel->exchange_declare($queue->namespace, AMQPExchangeType::TOPIC, durable: true, auto_delete: false);
$channel->exchange_declare("{$queue->namespace}.failed", AMQPExchangeType::TOPIC, durable: true, auto_delete: false);
$channel->exchange_declare($queue->namespace, AMQPExchangeType::TOPIC, durable: true, auto_delete: false, arguments: new AMQPTable($this->exchangeArguments));
$channel->exchange_declare("{$queue->namespace}.failed", AMQPExchangeType::TOPIC, durable: true, auto_delete: false, arguments: new AMQPTable($this->exchangeArguments));

// 2. Declare the working queue and configure the DLX for receiving rejected messages.
$channel->queue_declare($queue->name, durable: true, auto_delete: false, arguments: new AMQPTable(["x-dead-letter-exchange" => "{$queue->namespace}.failed"]));
$channel->queue_declare($queue->name, durable: true, auto_delete: false, arguments: new AMQPTable(array_merge($this->queueArguments, ["x-dead-letter-exchange" => "{$queue->namespace}.failed"])));
$channel->queue_bind($queue->name, $queue->namespace, routing_key: $queue->name);

// 3. Declare the dead-letter-queue and bind it to the DLX.
$channel->queue_declare("{$queue->name}.failed", durable: true, auto_delete: false);
$channel->queue_declare("{$queue->name}.failed", durable: true, auto_delete: false, arguments: new AMQPTable($this->queueArguments));
$channel->queue_bind("{$queue->name}.failed", "{$queue->namespace}.failed", routing_key: $queue->name);

// 4. Instruct to consume on the working queue.
$channel->basic_consume($queue->name, callback: $processMessage);
$channel->basic_consume($queue->name, callback: $processMessage, arguments: new AMQPTable($this->consumerArguments));

// 5. Consume. This blocks until the connection gets closed.
$channel->consume();
Expand Down