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Recently I create two after plugins, one that point to Magento\Catalog\Pricing\Price\FinalPrice::getValue() and other that point to Magento\Catalog\Model\Product::getPrice() and Magento\Catalog\Model\Product::getFinalPrice()

etc/frontend/di.xml

<?xml version="1.0" encoding="utf-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/ObjectManager/etc/config.xsd">
  <type name="Magento\Catalog\Pricing\Price\FinalPrice">
      <plugin disabled="false" name="morwifinalprice" sortOrder="99" type="Morwi\PrecioRegional\Plugin\FinalPrice"/>
  </type>
  <type name="Magento\Catalog\Model\Product">
      <plugin disabled="false" name="morwifinalprice" sortOrder="99" type="Morwi\PrecioRegional\Plugin\Price"/>
  </type>
</config>

Plugin/FinalPrice.php

<?php
namespace Morwi\PrecioRegional\Plugin;

class FinalPrice
{
    ...

    /**
     * @param \Magento\Catalog\Pricing\Price\FinalPrice $subject
     * @param float $result
     * @return float
     */
    public function afterGetValue(\Magento\Catalog\Pricing\Price\FinalPrice $subject, $result){

      ...

      return $result;
    }
}
?>

Plugin/Price.php

<?php
namespace Morwi\PrecioRegional\Plugin;

class Price
{
    ...

    /**
     * @param \Magento\Catalog\Model\Product $subject
     * @param float $result
     * @return float
     */
    public function afterGetPrice(\Magento\Catalog\Model\Product $subject, $result){
      ...

      return $result;
    }


    /**
     * @param \Magento\Catalog\Model\Product $subject
     * @param float $result
     * @return float
     */
    public function afterGetFinalPrice(\Magento\Catalog\Model\Product $subject, $result){

      ...

      return $result;
    }
}
?>

The plugins work fine and are executed without problem on all the site. Except on checkout. When I pass from cart to checkout, my plugins are ignored. I debugged and detected that the original methods are executed:

Magento\Catalog\Pricing\Price\FinalPrice::getValue()

Magento\Catalog\Model\Product::getPrice()

Magento\Catalog\Model\Product::getFinalPrice()

But the plugins not. Why is it? How can I run my plugins on checkout?

Thanks.

0

I got the problem. The plugin was defined only to frontend area. But, during the checkout process, the page made some request defined on webapi_rest. So, I copied etc/frontend/di.xml to etc/webapi_rest/di.xml, and it works.

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