Add custom options programmatically not working on product page

Question

When i execute follow code

    $options = [
    [
        'title' => 'drop_down option',
        'type' => 'drop_down',
        'is_require' => true,
        'sort_order' => 4,
        'values' => [
            [
                'title' => 'drop_down option 1',
                'price' => 10,
                'price_type' => 'fixed',
                'sku' => 'drop_down option 1 sku',
                'sort_order' => 1,
            ],
            [
                'title' => 'drop_down option 2',
                'price' => 20,
                'price_type' => 'fixed',
                'sku' => 'drop_down option 2 sku',
                'sort_order' => 2,
            ],
        ],
    ]
];

foreach ($options as $arrayOption) {
    $option = $this->objectManager->create(\Magento\Catalog\Model\Product\Option::class)
        ->setProductId($_product->getId())
        ->setStoreId($_product->getStoreId())
        ->addData($arrayOption);
    $option->save();
    $_product->addOption($option);
    $_product->save();
}

• Custom Option not appear on product frontend page.

• When goto to product page from admin page and click save without any changing.

• Then goto frontend product page custom show up.

I want create option programmatically and should shown on front page without saving product from admin panel.

Answer 1

Try following way:

$_product = $this->_objectManager->create('Magento\Catalog\Api\ProductRepositoryInterface')->getById(1, true);
$options = [
    [
        'title' => 'drop_down option',
        'type' => 'drop_down',
        'is_require' => true,
        'sort_order' => 4,
        'values' => [
            [
                'title' => 'drop_down option 1',
                'price' => 10,
                'price_type' => 'fixed',
                'sku' => 'drop_down option 1 sku',
                'sort_order' => 1,
            ],
            [
                'title' => 'drop_down option 2',
                'price' => 20,
                'price_type' => 'fixed',
                'sku' => 'drop_down option 2 sku',
                'sort_order' => 2,
            ],
        ],
    ]
];

foreach ($options as $arrayOption) {
    $option = $this->_objectManager->create(\Magento\Catalog\Model\Product\Option::class)
        ->setProductId($_product->getId())
        ->setStoreId($_product->getStoreId())
        ->addData($arrayOption);
    $option->save();
    $_product->addOption($option);
    $this->_objectManager->create('Magento\Catalog\Api\ProductRepositoryInterface')->save($_product);
}

Note: Try to use DI instead of $this->_objectManager