Need to override \Magento\OfflineShipping\Model\Carrier\Freeshipping

Question

I need to override the collectRates() function in file (\Magento\OfflineShipping\Model\Carrier\Freeshipping) file.

I want to hide CarrierTitle & MethodTitle on the checkout page so I am planning pass set blank CarrierTitle & MethodTitle for that I need to override collectRates() function

Answer 1

To overide that file you need to do following things.

1. create di.xml file at following location.

app\code\Vendor\Extension\etc\di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
 <preference for="Magento\OfflineShipping\Model\Carrier\Freeshipping" type="Vendor\Extension\Model\Carrier\Freeshipping" />
</config>

2. now create the Freeshipping.php at following location.

app\code\Vendor\Extension\Model\Carrier\Freeshipping.php

<?php
    namespace Vendor\Extension\Model\Carrier;

    use Magento\Quote\Model\Quote\Address\RateRequest;

    class Freeshipping extends \Magento\OfflineShipping\Model\Carrier\Freeshipping
    {
        public function collectRates(RateRequest $request)
        {
            // Do your logic here
        }

    }