SNS events

To handle SNS events, extend the SnsHandler class:


use Bref\Context\Context;
use Bref\Event\Sns\SnsEvent;
use Bref\Event\Sns\SnsHandler;
 
class MyHandler extends SnsHandler
{
    public function handleSns(SnsEvent $event, Context $context): void
    {
        foreach ($event->getRecords() as $record) {
            $message = $record->getMessage();
 
            // do something
        }
    }
}

Then, create a Lambda function that listens to SNS events with the handler you created:

Laravel

serverless.yml


functions:
    # ...
    worker:
        handler: App\MyHandler
        runtime: php-84
        events:
            - sns: my-topic

The App\MyHandler class will be instantiated by Laravel’s service container.

Symfony

serverless.yml


functions:
    # ...
    worker:
        handler: App\MyHandler
        runtime: php-84
        events:
            - sns: my-topic

The App\MyHandler class will be instantiated by Symfony’s service container.

PHP

serverless.yml


functions:
    # ...
    worker:
        handler: handler.php
        runtime: php-84
        events:
            - sns: my-topic

The file handler.php should return the handler instance:

handler.php


<?php
 
require __DIR__ . '/vendor/autoload.php';
 
return new MyHandler();

The sns event creates the SNS topic on deployment. Learn more about using SNS in serverless.yml in the Serverless Framework documentation , for example to subscribe to an existing topic.

Error handling

If the handler throws an exception, Lambda retries the event twice, then drops it. Read Error handling to keep failed events.