Change cart item prices in Woocommerce 3

I'm attempting to change item cost in truck utilizing the accompanying capability:

add_action( 'woocommerce_before_shipping_calculator', 'add_custom_price' 
     );
      function add_custom_price( $cart_object ) {
         foreach ( $cart_object->cart_contents as $key => $value ) {
         $value['data']->price = 400;
        } 
     }

It was working accurately in WooCommerce adaptation 2.6.x yet not working any longer in variant 3.0+

How might I make it work in WooCommerce Adaptation 3.0+?

Much obliged.

Solutions

Update 2021 (Dealing with scaled down truck custom thing cost)

With WooCommerce variant 3.0+ you really want:

To utilize woocommerce_before_calculate_totals snare all things considered.

To utilize WC_Cart get_cart() technique all things being equal

To utilize WC_product set_price() technique all things being equal

Here is the code:

// Set custom cart item price
add_action( 'woocommerce_before_calculate_totals', 'add_custom_price', 1000, 1);
function add_custom_price( $cart ) {
    // This is necessary for WC 3.0+
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Avoiding hook repetition (when using price calculations for example | optional)
    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // Loop through cart items
    foreach ( $cart->get_cart() as $cart_item ) {
        $cart_item['data']->set_price( 40 );
    }
}

Also, for smaller than expected truck (update):

// Mini cart: Display custom price 
add_filter( 'woocommerce_cart_item_price', 'filter_cart_item_price', 10, 3 );
function filter_cart_item_price( $price_html, $cart_item, $cart_item_key ) {

    if( isset( $cart_item['custom_price'] ) ) {
        $args = array( 'price' => 40 );

        if ( WC()->cart->display_prices_including_tax() ) {
            $product_price = wc_get_price_including_tax( $cart_item['data'], $args );
        } else {
            $product_price = wc_get_price_excluding_tax( $cart_item['data'], $args );
        }
        return wc_price( $product_price );
    }
    return $price_html;
}

Code goes in functions.php document of your dynamic kid subject (or dynamic topic).

This code is tried and works (actually deals with WooCommerce 5.1.x).

Note: you can expand the snare need from 20 to 1000 (or even 2000) while utilizing around barely any particular modules or others customizations.

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Change cart item prices in Woocommerce 3

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