Graceful shutdown

Stopping consumers is very useful if you want to ensure you don't kill a process halfway through processing a consumed message.

Consumers automatically listen to the SIGTERM, SIGINT and SIQUIT signals, which means you can easily stop your consumers using those signals.

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Running callbacks when the consumer stops

If your app requires that you run sum sort of processing when the consumers stop processing messages, you can use the onStopConsume method, available on the \Junges\Kafka\Contracts\CanConsumeMessages interface. This method accepts a Closure that will run once your consumer stops consuming.

use Junges\Kafka\Facades\Kafka;

$consumer = Kafka::consumer(['topic'])
    ->withConsumerGroupId('group')
    ->withHandler(new Handler)
    ->onStopConsuming(static function () {
        // Do something when the consumer stop consuming messages
    })
    ->build();

$consumer->consume();

This features requires Process Control Extension to be installed.