return [

    // ...

    'providers' => [
        // ...
        \MarcusJaschen\Collmex\CollmexServiceProvider::class,
    ],

    // ...
];

use MarcusJaschen\Collmex\Client\Curl as CurlClient;
use MarcusJaschen\Collmex\Request;
use MarcusJaschen\Collmex\Type\CustomerGet;

// initialize HTTP client
$collmexClient = new CurlClient('USER', 'PASSWORD', 'CUSTOMER_ID');

// create request object
$collmexRequest = new Request($collmexClient);

// create a record type; we're querying the API for customer with ID=12345
$getCustomerType = new CustomerGet(array('customer_id' => '12345'));

// send HTTP request and get response object
$collmexResponse = $collmexRequest->send($getCustomerType->getCsv());

if ($collmexResponse->isError()) {
    echo 'Collmex error: ' . $collmexResponse->getErrorMessage() . '; Code=' . $collmexResponse->getErrorCode() . PHP_EOL;

    return;
}

$records = $collmexResponse->getRecords();

foreach ($records as $record) {
    // contains one Customer object and the Message object(s)
    var_dump($record->getData());
}

// show unparsed response contents:
var_dump($collmexResponse->getResponseRaw());

use MarcusJaschen\Collmex\Client\Curl as CurlClient;
use MarcusJaschen\Collmex\Request;
use MarcusJaschen\Collmex\Type\Customer;

// initialize HTTP client
$collmexClient = new CurlClient('USER', 'PASSWORD', 'CUSTOMER_ID');

// create request object
$collmexRequest = new Request($collmexClient);

// create a record type; we create a customer with some basic fields
$customer = new Customer(
    [
        'client_id' => '1',
        'salutation' => 'Herr',
        'firstname' => 'Charly',
        'lastname' => 'Cash',
        'street' => 'Hauptstraße 12',
        'zipcode' => '12222',
        'city' => 'Berlin',
        'inactive' => Customer::STATUS_ACTIVE,
        'country' => 'DE',
        'phone' => '+49300000000',
        'email' => 'cash@example.org',
        'output_medium' => Customer::OUTPUT_MEDIUM_EMAIL,
    ]
);

// send HTTP request and get response object
$collmexResponse = $collmexRequest->send($customer->getCsv());

if ($collmexResponse->isError()) {
    echo 'Collmex error: ' . $collmexResponse->getErrorMessage() . '; Code=' . $collmexResponse->getErrorCode() . PHP_EOL;

    return;
}

  $newObject = $collmexResponse->getFirstRecord();
  echo 'New Collmex customer ID=' . $newObject->new_id . PHP_EOL;

  $records = $collmexResponse->getRecords();

  foreach ($records as $record) {
      // contains one NewObject object and the Message object(s)
      var_dump($record->getData());
  }

use MarcusJaschen\Collmex\Client\Curl as CurlClient;
use MarcusJaschen\Collmex\MultiRequest;
use MarcusJaschen\Collmex\Type\CustomerOrder;

// initialize HTTP client
$collmexClient = new CurlClient('USER', 'PASSWORD', 'CUSTOMER_ID');

// create request object
$collmexMultiRequest = new MultiRequest($collmexClient);

// create a record type; we create a CustomerOrder with some basic fields
$customerOrderData = [
    'client_id' => '1',
    'customer_salutation' => 'Herr',
    'customer_firstname' => 'Charly',
    'customer_lastname' => 'Cash',
    'customer_street' => 'Hauptstraße 12',
    'customer_zipcode' => '12222',
    'customer_city' => 'Berlin',
    'customer_country' => 'DE',
    'customer_phone' => '+49300000000',
    'customer_email' => 'cash@example.org',
    'order_date' => '01.01.1970',
    'status' => CustomerOrder::STATUS_CONFIRMED,
];

// set several item positions
$customerOrderItem = new CustomerOrder(
    array_merge(
        $customerOrderData,
        [
            'product_description' => 'erster Artikel',
            'quantity' => '1',
            'price' => '10,50',
            'tax_rate' => CustomerOrder::TAX_RATE_FULL,
        ]
    )
);
$collmexMultiRequest->add($customerOrderItem);

$customerOrderItem = new CustomerOrder(
    array_merge(
        $customerOrderData,
        [
            'product_description' => 'zweiter Artikel',
            'quantity' => '10',
            'price' => '37,99',
            'tax_rate' => CustomerOrder::TAX_RATE_REDUCED,
        ]
    )
);
$collmexMultiRequest->add($customerOrderItem);

$customerOrderItem = new CustomerOrder(
    array_merge(
        $customerOrderData,
        [
            'product_description' => 'Artikel Nummer drei',
            'quantity' => '3',
            'price' => '1250,00',
            'tax_rate' => CustomerOrder::TAX_RATE_FULL,
        ]
    )
);
$collmexMultiRequest->add($customerOrderItem);

// send HTTP request and get response object
$collmexResponse = $collmexMultiRequest->send();

if ($collmexResponse->isError()) {
    echo 'Collmex error: ' . $collmexResponse->getErrorMessage() . '; Code=' . $collmexResponse->getErrorCode() . PHP_EOL;

    return;
}

$newObject = $collmexResponse->getFirstRecord();
echo 'New Collmex order ID=' . $newObject->new_id . PHP_EOL;

$records = $collmexResponse->getRecords();

foreach ($records as $record) {
    // contains one NewObject object and the Message object(s)
    var_dump($record->getData());
}

use MarcusJaschen\Collmex\CollmexField\Date;

echo Date::toDateTime('20220921')->format('Y-m-d')
echo Date::toDateTime('12.08.2022')->format('Y-m-d')

use MarcusJaschen\Collmex\CollmexField\Date;

echo Date::fromDateTime(new \DateTime('2022-09-21T00:00:00', new \DateTimeZone('Europe/Berlin')))