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Supporting Enqueue

Enqueue is an MIT-licensed open source project with its ongoing development made possible entirely by the support of community and our customers. If you’d like to join them, please consider:

Google Pub Sub transport

A transport for Google Pub Sub cloud MQ. It uses internally official google sdk library google/cloud-pubsub


$ composer require enqueue/gps

Create context

To enable the Google Cloud Pub/Sub Emulator, set the PUBSUB_EMULATOR_HOST environment variable. There is a handy docker container google/cloud-sdk.

use Enqueue\Gps\GpsConnectionFactory;


$connectionFactory = new GpsConnectionFactory();

// save as above
$connectionFactory = new GpsConnectionFactory('gps:');

$context = $connectionFactory->createContext();

// if you have enqueue/enqueue library installed you can use a factory to build context from DSN
$context = (new \Enqueue\ConnectionFactoryFactory())->create('gps:')->createContext();

Send message to topic

Before you can send message you have to declare a topic. The operation creates a topic on a broker side. Google allows messages to be sent only to topic.

/** @var \Enqueue\Gps\GpsContext $context */

$fooTopic = $context->createTopic('foo');
$message = $context->createMessage('Hello world!');


$context->createProducer()->send($fooTopic, $message);

Consume message:

Before you can consume message you have to subscribe a queue to the topic. Google does not allow consuming message from the topic directly.

/** @var \Enqueue\Gps\GpsContext $context */

$fooTopic = $context->createTopic('foo');
$fooQueue = $context->createQueue('foo');

$context->subscribe($fooTopic, $fooQueue);

$consumer = $context->createConsumer($fooQueue);
$message = $consumer->receive();

// process a message

// $consumer->reject($message);

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