new Adadgio\GearBundle\AdadgioGearBundle();

use Adadgio\GearBundle\Component\Api\ApiRequest;
use Adadgio\GearBundle\Component\Api\ApiResponse;
use Adadgio\GearBundle\Component\Api\Annotation\Api;

/**
 * @Route("/test/gear/api", name="test_gear_api")
 * @Api(method={"POST","GET"}, enabled=true)
 */
public function myApiEndpointAction(Request $request, ApiRequest $apiRequest)
{
    return new ApiResponse(array('yes' => 'sir'));
}

use Adadgio\GearBundle\Component\Api\Authenticator\AuthProvider;
use Adadgio\GearBundle\Component\Api\Authenticator\AuthProviderInterface;

class ExampleAuthProviderService extends AuthProvider implements AuthProviderInterface
{
    /**
     * Build your service like you build services every day!
     */
    public function __construct()
    {
        // inject anything in here, like doctrien.orm.entity_manager, or whatever.
    }

    /**
     * Checks auth. You could get request headers key and check that
     * the secret key and client id are in your database for example...
     *
     * @return boolean
     */
    public function authenticate()
    {
        // your owns logic here
        $request = $this->getRequest();
        $headers = $request->getHeaders();

        return true;
    }
}

use Adadgio\GearBundle\Connector\NodeRed\Payload;

// payload contains 3 initial params you cannot override (pid, kill, iteration)
// and they change automatically during the loop lifecycle
$payload = new Payload();

// add more params
$payload->setParameter('my_name', 'Romain'); // nb: 3 params are here by default

// use the connector to start (trigger) the loop
$this->get('adadgio_gear.nodered.connector')->send('POST', '/adadgio/gear/loop/start', $payload); // @todo pass this more transparently

// in some listener, far, far away, a long long time ago
// the listener must listen to "adadgio_gear.nodered.payload_received"
public function onPayloadReceived(\Adadgio\GearBundle\Connector\NodeRed\Event\PayloadEvent $event)
{
    // you might need the request, who knows
    $request = $event->getRequest();

    $payload = $event->Payload();
    // notice iteration changed to +1, pid always stays the same (unless you trigger another process)
    // otherwise you get back the parameters you defined earlier

    // if you wanna stop the flow
    if ($payload->getIteration() > 3) {
        $payload->kill();
    }

    // process... something, or modify your input params at runtime
    $name = $payload->getParameter('my_name');
    $name = ... // change your name!
    $payload->setParameter('my_name', $name);
}

use Adadgio\GearBundle\Component\Reader\CsvExporter;

$exporter = $this->get('adadgio_gear.csv_exporter')
    ->setName("exportFileName")
    ->setColumns(array('label', 'views'))
    ->setData(array(array('one','two'),array('three','for')))
    ->generate();

use Adadgio\GearBundle\Component\Reader\CsvReader;

$csv = new CsvReader('data/test.csv');

$data = $csv
    ->setDelimiter(';')
    ->read(5, 15) // reads rows from 5 to 15 included (pass null for no limit and offset)
    ->getData();