Magento 2: List all products

Question

I need some direction...

Within Magento 2, I am not finding exactly how to do a getCollection() that will allow me to see a list of all products. I am developing an Rest API to allow me to get a list of products based on a defined set of attributes. The code I have is the following:

class Inventory implements InventoryInterface {
    private $scopeConfig;
    private $product;

    public function __construct(
        Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
        Magento\Catalog\Model\ProductFactory $product
    ) {
        $this->scopeConfig = $scopeConfig;
        $this->product = $product;
    }

    public function get($id = null) {
        $data = $this->product->create()->getCollection();
        $data->addFieldToFilter('status', 1);
        $data->addFieldToFilter('type_id', 'simple');

        if ($id) {
            $data->addFieldToFilter('entity_id', $id);
        }

        return $data->getData();
    }
}

with this, I am getting back the XML, but I am missing how to be able to select additional attributes to display.

Please be gentle in your responses... I am new to this list AND Magento 2, so feeling a little stupid at this point. Thanks in advance.

Answer 1

I was finally able to get this to work... The code is as follows:

class Inventory implements InventoryInterface {
    private $scopeConfig;
    private $product;

    public function __construct(
    \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $product
    ) {
        $this->product = $product;
    }

    public function get($id = null) {
        $data = $this->product->create();
        $data->addFieldToFilter('status', 1);
        $data->addFieldToFilter('type_id', 'simple');

        if ($id) {
            $data->addFieldToFilter('entity_id', $id);
        }
        $data->addAttributeToSelect('price');
        return $data->load()->toArray();
    }
}

Hope this helps someone. Thanks again for the assist Pradeep.

Answer 2

try this

class Inventory  extends \Magento\Framework\View\Element\Template {
    private $scopeConfig;
    private $product;

    public function __construct(
        \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
        \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $product
    ) {
        $this->scopeConfig = $scopeConfig;
        $this->product = $product;
    }

    public function get($id = null) {
        $data = $this->product->create();
        $data->addFieldToFilter('status', 1);
        $data->addFieldToFilter('type_id', 'simple');
        $id=1;
        if ($id) {
            $data->addFieldToFilter('entity_id', $id);
        }

        return $data;
    }

hope it will help you:-)

Answer 3

Regarding this error...

CRITICAL: exception 'Exception' with message 'Report ID: webapi-568de5e300ce5; Message: Recoverable Error: Argument 2 passed to XXXXXXXX\Product\Model\Inventory::__construct() must be an instance of Magento\Catalog\Model\ResourceModel\Product\CollectionFactory, instance of Magento\Catalog\Model\ProductFactor

What's happening here is that the called block within var/generation has the older version of your current block. Magento cache system is crazy here. Easy fix tho. Go to ROOT/VAR/GENERATION/ Delete all folders there. It would be regenerated (Refresh) once you load the page.

For a cleaner fix. Go to SHELL, on your root directory type

$ php bin/magento setup:upgrade

This will refresh all cache and regenerate al magento modules along custom module. Same as deleting VAR/GENERATION folders.

Hope it helps.