Crie programaticamente um produto simples no magento 2

Eu gostaria de criar um produto simples programaticamente no magento 2. Existe alguma maneira de criar?

Aqui, encontrei as soluções para criar um produto programaticamente através de um arquivo php personalizado test.php.

<?php
use Magento\Framework\App\Bootstrap;
include('app/bootstrap.php');
$bootstrap = Bootstrap::create(BP, $_SERVER);

$objectManager = $bootstrap->getObjectManager();

$state = $objectManager->get('Magento\Framework\App\State');
$state->setAreaCode('frontend');


$_product = $objectManager->create('Magento\Catalog\Model\Product');
$_product->setName('Test Product');
$_product->setTypeId('simple');
$_product->setAttributeSetId(4);
$_product->setSku('test-SKU');
$_product->setWebsiteIds(array(1));
$_product->setVisibility(4);
$_product->setPrice(array(1));
$_product->setImage('/testimg/test.jpg');
$_product->setSmallImage('/testimg/test.jpg');
$_product->setThumbnail('/testimg/test.jpg');
$_product->setStockData(array(
        'use_config_manage_stock' => 0, //'Use config settings' checkbox
        'manage_stock' => 1, //manage stock
        'min_sale_qty' => 1, //Minimum Qty Allowed in Shopping Cart
        'max_sale_qty' => 2, //Maximum Qty Allowed in Shopping Cart
        'is_in_stock' => 1, //Stock Availability
        'qty' => 100 //qty
        )
    );

$_product->save();
?>

Primeiro, em seu construtor você vai querer incluir três classes para injeção de dependência: Magento\Catalog\Api\Data\ProductInterfaceFactory, Magento\Catalog\Api\ProductRepositoryInterfacee Magento\CatalogInventory\Api\StockRegistryInterface. A primeira é gerada, portanto, não se preocupe se ela aparecer como inexistente no seu IDE.

public function __construct(\Magento\Catalog\Api\Data\ProductInterfaceFactory $productFactory, \Magento\Catalog\Api\ProductRepositoryInterface $productRepository, \Magento\CatalogInventory\Api\StockRegistryInterface $stockRegistry)
{
    $this->productFactory = $productFactory;
    $this->productRepository = $productRepository;
    $this->stockRegistry = $stockRegistry;
}

A partir daí, onde você deseja criar o produto, será necessário usar o Factory para criá-lo e definir os dados, e o repositório para salvá-lo:

/** @var \Magento\Catalog\Api\Data\ProductInterface $product */
$product = $this->productFactory->create();
$product->setSku('SAMPLE-ITEM');
$product->setName('Sample Item');
$product->setTypeId(\Magento\Catalog\Model\Product\Type::TYPE_SIMPLE);
$product->setVisibility(4);
$product->setPrice(1);
$product->setAttributeSetId(4); // Default attribute set for products
$product->setStatus(\Magento\Catalog\Model\Product\Attribute\Source\Status::STATUS_ENABLED);
// If desired, you can set a tax class like so:
$product->setCustomAttribute('tax_class_id', $taxClassId);

$product = $this->productRepository->save($product); // This is important - the version provided and the version returned will be different objects

É provável que você queira adicionar algumas ações para isso, o que você pode fazer assim:

$stockItem = $this->stockRegistry->getStockItemBySku($product->getSku());
$stockItem->setIsInStock($isInStock);
$stockItem->setQty($stockQty);
$this->stockRegistry->updateStockItemBySku($product->getSku(), $stockItem);

Se você estiver executando isso em um script (incluindo scripts de configuração / atualização), também precisará emular a área, pois esse tipo de coisa requer sessões por algum motivo maluco.

Para fazer isso, \Magento\Framework\App\Stateentre no construtor e, em seguida, utilize este código:

$this->state->emulateAreaCode(
    'adminhtml', 
    function () { 
        /* all code here */ 
    }
);

use \Magento\Framework\App\Bootstrap;
include('app/bootstrap.php');

// add bootstrap
$bootstraps = Bootstrap::create(BP, $_SERVER);
$object_Manager = $bootstraps->getObjectManager();

$app_state = $object_Manager->get('\Magento\Framework\App\State');
$app_state->setAreaCode('frontend');

// get date 
$today_date = date("m/d/Y");
$added_date = date('m/d/Y',strtotime("+17 day"));

$set_product = $object_Manager->create('\Magento\Catalog\Model\Product');

try{
    $set_product->setWebsiteIds(array(1));
    $set_product->setAttributeSetId(4);
    $set_product->setTypeId('simple');
    $set_product->setCreatedAt(strtotime('now')); 
    // time of product creation
    $set_product->setName('Test Sample Products'); 
    // add Name of Product
    $set_product->setSku('add-sku-1');
    // add sku hear
    $set_product->setWeight(1.0000);
    // add weight of product
    $set_product->setStatus(1);
    $category_id= array(4,5);
    // add your catagory id
    $set_product->setCategoryIds($category_id); 
    // Product Category
    $set_product->setTaxClassId(0); 
    // type of tax class 
    // (0 - none, 1 - default, 2 - taxable, 4 - shipping)
    $set_product->setVisibility(4); 
    // catalog and search visibility
    $set_product->setManufacturer(28); 
    // manufacturer id
    $set_product->setColor(24);
    //print_r($_product);die;
    $set_product->setNewsFromDate($today_date); 
    // product set as new from
    $set_product->setNewsToDate($added_date); 
    // add image path hear
    $set_product->setImage('/testimg/test.jpg');
    // add small image path hear
    $set_product->setSmallImage('/testimg/test.jpg');
    // add Thumbnail image path hear
    $set_product->setThumbnail('/testimg/test.jpg');
    // product set as new to
    $set_product->setCountryOfManufacture('AF'); 
    // country of manufacture (2-letter country code)
    $set_product->setPrice(100.99) ;
    // price in form 100.99
    $set_product->setCost(88.33); 
    // price in form 88.33
    $set_product->setSpecialPrice(99.85); 
    // special price in form 99.85
    $set_product->setSpecialFromDate('06/1/2016'); 
    // special price from (MM-DD-YYYY)
    $set_product->setSpecialToDate('06/30/2018'); 
    // special price to (MM-DD-YYYY)
    $set_product->setMsrpEnabled(1); 
    // enable MAP
    $set_product->setMsrpDisplayActualPriceType(1); 
    // display actual price 
    // (1 - on gesture, 2 - in cart, 3 - before order confirmation, 4 - use config)
    $set_product->setMsrp(99.99); 
    // Manufacturer's Suggested Retail Price
    $set_product->setMetaTitle('test meta title 2');
    $set_product->setMetaKeyword('test meta keyword 2');
    $set_product->setMetaDescription('test meta description 2');
    $set_product->setDescription('This is a long description');
    $set_product->setShortDescription('This is a short description');
    $set_product->setStockData(
        array(
        'use_config_manage_stock' => 0, 
        // checkbox for 'Use config settings' 
        'manage_stock' => 1, // manage stock
        'min_sale_qty' => 1, // Shopping Cart Minimum Qty Allowed 
        'max_sale_qty' => 2, // Shopping Cart Maximum Qty Allowed
        'is_in_stock' => 1, // Stock Availability of product
        'qty' => 100 // qty of product
        )
    );

    $set_product->save();
    // get id of product
    $get_product_id = $set_product->getId();
    echo "Upload simple product id :: ".$get_product_id."\n";
}
catch(Exception $exception)
{
    // errro in exception/code
    Mage::log($exception->getMessage());
}

referência de código :: http://www.onlinecode.org/create-a-simple-product-programmatically-in-magento-2/

use Magento\Framework\App\Filesystem\DirectoryList; 
use Magento\Framework\App\Action\Context;
use Magento\Framework\Controller\ResultFactory;
class Addsimpleproduct extends \Magento\Framework\App\Action\Action
{
protected $_resultPageFactory;
protected $_fileUploaderFactory;
public function __construct(Context $context, \Magento\Framework\View\Result\PageFactory $resultPageFactory)
{
    //  $t$this->_fileUploaderFactory = $fileUploaderFactory;
    // $this->filesystem = $filesystem;
    $this->_resultPageFactory = $resultPageFactory;
    parent::__construct($context);
}


public function execute()
{
    $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    $islogin = $objectManager->create('Magento\Customer\Model\Session');    // check is login
    if(!$islogin->isLoggedIn()) 
    {
        $resultRedirect = $this->resultFactory->create(ResultFactory::TYPE_REDIRECT);
        $url='customer/account/login';
        $resultRedirect->setPath($url);
        $this->messageManager->addSuccess(__('Session Expired...!')); 
        return $resultRedirect;
        exit;
    }

    $_id=$this->getRequest()->getParam('_id');

    $category =     $this->getRequest()->getParam('categorylist');
    $pname      = $this->getRequest()->getParam('pname');
    $pdescription      = $this->getRequest()->getParam('pdescription');
    $pshortdescription      = $this->getRequest()->getParam('pshortdescription');
    $sku      = $this->getRequest()->getParam('sku');
    $price      = $this->getRequest()->getParam('price');
    $spprice      = $this->getRequest()->getParam('spprice');
    $spfrom      = $this->getRequest()->getParam('spfrom');
    $spto      = $this->getRequest()->getParam('spto');
    $stock      = $this->getRequest()->getParam('stock');
    $stockavailiable      = $this->getRequest()->getParam('stockavailiable');
    $visiblibilty      = $this->getRequest()->getParam('visiblibilty');
    $tax      = $this->getRequest()->getParam('taxclass');
    $weight_radio= $this->getRequest()->getParam('weight_radio');

    if($weight_radio==1)
    {
        $weight   = $this->getRequest()->getParam('weight');
    }

    $metatitle      = $this->getRequest()->getParam('metatitle');
    $metakey      = $this->getRequest()->getParam('metakey');
    $metadesc      = $this->getRequest()->getParam('metadesc');
    $maxqty      = $this->getRequest()->getParam('maxqty');
    $download    = $this->getRequest()->getParam('download');
    $virtual=$this->getRequest()->getParam('producttype');
    $title1 = "";
    $title2 = "";
    $separately1 = 0;
            $is_down = "simple";   
    $data =  $objectManager->get('\Magento\Catalog\Model\Product');
    if($_id!="")
    {
        $data ->load($_id);
    }
    $data
        ->setWebsiteIds(array(1))
        ->setStoreId(1) //you can set data in store scope               
        ->setAttributeSetId(4) //ID of a attribute set named 'default'
        ->setTypeId($is_down) //product type
        ->setCreatedAt(strtotime('now')) //product creation time
        ->setSku($sku); //SKU
        if($weight_radio==1)
        {
            $data->setWeight($weight);        
        }
        $data->setName($pname) //product name
        ->setStatus(2) //product status (1 - enabled, 2 - disabled)
        ->setTaxClassId($tax) //tax class (0 - none, 1 - default, 2 - taxable, 4 - shipping)              
        ->setVisibility($visiblibilty)
        ->setPrice($price) //price in form 11.22
        ->setSpecialPrice($spprice) //special price in form 11.22
        ->setSpecialFromDate($spfrom) //special price from (MM-DD-YYYY)
        ->setSpecialToDate($spto) //special price to (MM-DD-YYYY)
        ->setMetaTitle($metatitle)
        ->setMetaKeyword($metakey)
        ->setMetaDescription($metadesc)
        ->setDescription( $pdescription)
        ->setShortDescription($pshortdescription)
        ->setCategoryIds($category)
        ->setStockData(array(
                        'manage_stock' => 1,
                        'max_sale_qty' => $maxqty, //Maximum Qty Allowed in Shopping Cart
                        'is_in_stock' => $stockavailiable,
                        'qty' => $stock
                    )
                );

        // $data->setQuantityAndStockStatus(['qty' => $stock, 'is_in_stock' => $stockavailiable]);

        if($download=='yes')
        {
            $data->setData('links_title',$title1);
            $data->setData('samples_title',$title2);
            $data->setData('links_purchased_separately',$separately1);
        }


        $customerSession = $objectManager->create('Magento\Customer\Model\Session');
        $sid=$customerSession->getCustomer()->getId();

        $cname=$customerSession->getCustomer()->getName();

        $data->setSellerid($sid);
        $data->setApprovalstatus("Pending");

        //for image upload
         // $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
        $fileSystem = $objectManager->create('\Magento\Framework\Filesystem');
       //$mediaPath=$fileSystem->getDirectoryRead(\Magento\Framework\App\Filesystem\DirectoryList::MEDIA)->getAbsolutePath('tmp/catalog/product');
       $filename= $this->getRequest()->getParam('path');
       $files=explode(',',$filename);

       if($filename!='')
       {

           foreach($files as $file)
           {

                $filepath='/catalog/product' .trim($file);
                try{

                     $data->addImageToMediaGallery($filepath, array('image','thumbnail','small','swatch'), false, false);
                }catch(Exception $e)
                {

                }

           }
       }

            $data->save() //$data->save()