README

Provides support in Silex 2.x projects for sessions that are stored on Amazon DynamoDB.

Typically PHP Sessions are not scalable. As soon as a load balanced / multi server setup is involved, one needs to find a better solution. Amazons DynamoDB NoSQL storage engine is the fast, easy and scalable solution for that problem.

Just implement it in your project ( see below ). You also need a solution to get rid of stale sessions from the table. Since deleting many old sessions can take a lot of write capacity units, it's best to configure a cron job and run the Garbage Collector over night.

Gunnar Beushausen

https://www.gunnar-beushausen.de

Basic Usage

use Silex\Provider\SessionServiceProvider;
use DynamoDbSession\DynamoDbSessionServiceProvider;

//Don't keep your AWS credentials in your source code! Put it in an environment variable,
//or if you're hosting on EC2, use IAM Roles!

$this->application['AwsSdk'] = function() {
	return new Sdk([
		'region'   => 'eu-west-1', // EU West (Ireland) Region
		'version'  => 'latest'  // Use the latest version of the AWS SDK for PHP
	]);
};

$app['session.storage.options'] = [
  'cookie_httponly' => true,
  'hash_function' => 'sha256',
  'hash_bits_per_character' => 6,
];

$app['session.dynamodb.options'] = [
  'table_name' => 'sessions',
];

$app->register(new SessionServiceProvider());
$app->register(new DynamoDbSessionServiceProvider());

//To run the Garbage Collector in order to remove stale and old sessions from the table, run the following code:
$app['session.dynamodb.garbagecollect'];