Creating Simple Product using WooCommerce CRUD

<?php
$objProduct = new WC_Product();

//Set product name.
$objProduct->set_name('My Product 1');

//Set product status.
$objProduct->set_status('publish');

//Set if the product is featured. | bool
$objProduct->set_featured(TRUE);

//Set catalog visibility. | string $visibility Options: 'hidden', 'visible', 'search' and 'catalog'.
$objProduct->set_catalog_visibility('visible');

//Set product description.
$objProduct->set_description('My custom long description');

//Set product short description.
$objProduct->set_short_description('My short description');

//Set SKU
$objProduct->set_sku('U-123');


//Set the product's active price.
$objProduct->set_price(5.00);

//Set the product's regular price.
$objProduct->set_regular_price(5.00);

//Set the product's sale price.
$objProduct->set_sale_price();

//Set date on sale from. | string|integer|null $date UTC timestamp, or ISO 8601 DateTime. If the DateTime string has no timezone or offset, WordPress site timezone will be assumed. Null if their is no date.
$objProduct->set_date_on_sale_from();

//Set date on sale to. | string|integer|null $date UTC timestamp, or ISO 8601 DateTime. If the DateTime string has no timezone or offset, WordPress site timezone will be assumed. Null if their is no date.
$objProduct->set_date_on_sale_to();


//Set if product manage stock. | bool
$objProduct->set_manage_stock(TRUE);

//Set number of items available for sale.
$objProduct->set_stock_quantity(10);

//Set stock status. | string $status 'instock', 'outofstock' and 'onbackorder'
$objProduct->set_stock_status('instock');

//Set backorders. | string $backorders Options: 'yes', 'no' or 'notify'.
$objProduct->set_backorders('no');

//Set if should be sold individually. | bool
$objProduct->set_sold_individually(FALSE);

//$objProduct->set_weight(); //Set the product's weight.
//$objProduct->set_length(); //Set the product length.
//$objProduct->set_width();  //Set the product width.
//$objProduct->set_height(); //Set the product height.

//$objProduct->set_upsell_ids($upsell_ids); //Set upsell IDs. | array $upsell_ids IDs from the up-sell products.
//$objProduct->set_cross_sell_ids($cross_sell_ids); //Set crosssell IDs. | array $cross_sell_ids IDs from the cross-sell products.

//Set if reviews is allowed. | bool
$objProduct->set_reviews_allowed(TRUE);


//$objProduct->set_purchase_note($purchase_note); //Set purchase note. | string $purchase_note Purchase note.


$attribute = new WC_Product_Attribute();
$attribute->set_id(wc_attribute_taxonomy_id_by_name('pa_color')); //if passing the attribute name to get the ID
$attribute->set_name('pa_color'); //attribute name
$attribute->set_options(['red']); // attribute value
$attribute->set_position(1); //attribute display order
$attribute->set_visible(1); //attribute visiblity
$attribute->set_variation(0);//to use this attribute as varint or not

$raw_attributes[] = $attribute; //<- storing the attribute in an array

$attribute = new WC_Product_Attribute();
$attribute->set_id(25);
$attribute->set_name('pa_size');
$attribute->set_options(['XL']);
$attribute->set_position(2);
$attribute->set_visible(1);
$attribute->set_variation(0);

$raw_attributes[] = $attribute; //<- storing the attribute in an array

$objProduct->set_attributes($raw_attributes); //Set product attributes. | array $raw_attributes Array of WC_Product_Attribute objects.

$objProduct->set_category_ids($term_ids); //Set the product categories. | array $term_ids List of terms IDs.
$objProduct->set_tag_ids($term_ids); //Set the product tags. | array $term_ids List of terms IDs.

$objProduct->set_image_id(); //Set main image ID. | int|string $image_id Product image id.
$objProduct->set_gallery_image_ids(); //Set gallery attachment ids. | array $image_ids List of image ids.

//Saving the data to create new product, it will return product ID.
$new_product_id = $objProduct->save();

<?php
//if Product ID is known

$objProduct = new WC_Product(123);
//Alternative

//if SKU is known insted of Product ID

$productID = wc_get_product_id_by_sku('my-sku');

$objProduct = new WC_Product($productID);
//now that you have the product object you can manipulate it's value
//Set product name.

$objProduct->set_name('My updated product title');
//…

//…

//…
$productID = $objProduct->save();

<?php

$objProduct = new WC_Product(123);
//Get product name.

$productName = $objProduct->get_name();
//Get product status.

$objProduct->get_status();
//Get if the product is featured.

$objProduct->get_featured();
//Get catalog visibility.

$objProduct->get_catalog_visibility();
//Get product description.

$objProduct->get_description();
//Get product short description.

$objProduct->get_short_description();
//Get SKU

$objProduct->get_sku();
//Get the product's active price.

$objProduct->get_price();
//Get the product's regular price.

$objProduct->get_regular_price();
//Get the product's sale price.

$objProduct->get_sale_price();
//Get date on sale from.

$objProduct->get_date_on_sale_from();
//Get date on sale to.

$objProduct->get_date_on_sale_to();
//Get if product manage stock.

$objProduct->get_manage_stock();
//Get number of items available for sale.

$objProduct->get_stock_quantity();
//Get stock status.

$objProduct->get_stock_status();
//Get backorders.

$objProduct->get_backorders();
//Get if should be sold individually.

$objProduct->get_sold_individually();
//$objProduct->get_weight(); //Get the product's weight.

//$objProduct->get_length(); //Get the product length.

//$objProduct->get_width();  //Get the product width.

//$objProduct->get_height(); //Get the product height.
//Get if reviews is allowed.

$objProduct->get_reviews_allowed();
//$objProduct->get_purchase_note($purchase_note); //Get purchase note.
$objProduct->get_category_ids($term_ids); //Get the product categories. | array $term_ids List of terms IDs.

$objProduct->get_tag_ids($term_ids); //Get the product tags. | array $term_ids List of terms IDs.
$objProduct->get_image_id(); //Get main image ID.

$objProduct->get_gallery_image_ids(); //Get gallery attachment ids.

<?php
$objProduct = new WC_Product(123);
// If it is set to true, then the product will be permanently deleted.

// if it is set as false, then the product will be sent to trash from where it can be recovered, if needed.

$forceDelete = true
$success = $objProduct->delete($forceDelete);
if(!empty($success)){

	echo "Product deleted successfully.";

}

else{

	echo "Unable to delete the product.";

}