create-mage-product.php

<?php

require_once 'vendor/autoload.php';

$integrationAdminTokenService = new Swagger\Client\Api\IntegrationAdminTokenServiceV1Api();
$loginBody = new \Swagger\Client\Model\Body136();
$loginBody->setPassword('username');
$loginBody->setUsername('password');

$token = $integrationAdminTokenService->integrationAdminTokenServiceV1CreateAdminAccessTokenPost($loginBody);
$token = substr($token, 1, -1); // remove quotes
echo sprintf('Token fetched: "%s".%s', $token, PHP_EOL);


$config = new \Swagger\Client\Configuration();
// Don't know if this is the correct way but it works
$config->addDefaultHeader('Authorization', 'Bearer ' . $token);

$api = new \Swagger\Client\ApiClient($config);
$productRepoService = new \Swagger\Client\Api\CatalogProductRepositoryV1Api($api);

try {

    $customAttribute = new \Swagger\Client\Model\FrameworkAttributeInterface;
    $customAttribute->setAttributeCode('my_attribute_134')
        ->setValue('test value');

    $customAttributes = [$customAttribute];

    $product = new \Swagger\Client\Model\CatalogDataProductInterface();
    $product->setSku('TEST-001')
        ->setTypeId(4)
        ->setName('my product name')
        ->setCustomAttributes($customAttributes)
        ->setAttributeSetId(4);

    if ($product->valid()) {

        $createProduct = new \Swagger\Client\Model\Body18();
        $createProduct->setProduct($product);

        if ($createProduct->valid()) {
            $result = $productRepoService->catalogProductRepositoryV1SavePost($createProduct);

            print_r($result);
        } else {
            echo 'createProduct is not valid (local check)' . PHP_EOL;
            echo implode(PHP_EOL, $createProduct->listInvalidProperties()) . PHP_EOL;
        }
    } else {
        echo 'product is not valid (local check)' . PHP_EOL;
        echo implode(PHP_EOL, $product->listInvalidProperties()) . PHP_EOL;
    }

} catch (\Swagger\Client\ApiException $apiException) {
    echo 'Exception: ' . PHP_EOL;
    echo print_r($apiException->getResponseBody());
}