Issue #3310687 followup: The PriceNumberNormalizer is no longer necessary.

    class: Drupal\commerce_price_test\TestPriceResolver

    tags:

      - { name: commerce_price.price_resolver, priority: 100 }

  commerce_test.price_number_normalizer:

    class: Drupal\commerce_price_test\Normalizer\PriceNumberNormalizer

    tags:

      # The priority must be higher than serialization.normalizer.primitive_data.

      - { name: normalizer , priority: 1000 }

<?php

namespace Drupal\commerce_price_test\Normalizer;

use Drupal\commerce_price\Plugin\Field\FieldType\PriceItem;

use Drupal\Core\TypedData\Plugin\DataType\StringData;

use Drupal\serialization\Normalizer\PrimitiveDataNormalizer;

/**

 * Normalizes price field number properties.

 *

 * MySQL will store the number with trailing zeros, causing comparison problems.

 *

 * @todo remove after https://www.drupal.org/project/drupal/issues/3163853

 */

class PriceNumberNormalizer extends PrimitiveDataNormalizer {

  /**

   * {@inheritdoc}

   */

  protected $supportedInterfaceOrClass = StringData::class;

  /**

   * {@inheritdoc}

   */

  public function supportsNormalization($data, $format = NULL): array|string|int|float|bool|\ArrayObject|NULL {

    $supported = parent::supportsNormalization($data, $format);

    return $supported && $data instanceof StringData && $data->getParent() instanceof PriceItem && $data->getName() === 'number';

  }

  /**

   * {@inheritdoc}

   */

  public function normalize($object, $format = NULL, array $context = []) {

    $data = parent::normalize($object, $format, $context);

    return number_format($data, 2);

  }

}