Magento2.1.9 How to apply condition in checkout shipping method?

Question

In magento2 checkout page i'm using free shipping method and i need to hide free shipping method only for non stocking customer group and rest of all customer group i want to display free shipping method.So anyone please guide me in which file i have to put condition.Please check attached image.

Answer 1

1. Create custom module Hello_World
2. Create plugin and configure in di.xml file, app/code/Hello/World/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"> 
        <type name="Magento\OfflineShipping\Model\Carrier\Freeshipping">
          <plugin name="disable-freeshipping" type="Hello\World\Model\Carrier\Freeshipping" sortOrder="1" />  

        </type>      
 </config>

3. Create model file app/code/Hello/World/Model/Carrier/Freeshipping.php

   <?php
   
   namespace Hello\World\Model\Carrier;    
   
   class Freeshipping{
   
   protected $_checkoutSession;        
   
   protected $_scopeConfig;
   
   protected $_customerSession;
   
   public function __construct(
       \Magento\Checkout\Model\Session $checkoutSession,
       \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
       \Magento\Store\Model\StoreManagerInterface $storeManager,
       \Magento\Customer\Model\Session $customerSession
   ) {
       $this->_storeManager = $storeManager;
       $this->_checkoutSession = $checkoutSession;
       $this->_scopeConfig = $scopeConfig;
       $this->_customerSession = $customerSession;
   }
   
   public function afterCollectRates(\Magento\OfflineShipping\Model\Carrier\Freeshipping $freeshipping, $result)
   {   
       //Magento-2 Log Here
       $writer = new \Zend\Log\Writer\Stream(BP.'/var/log/magento2.log');
       $logger = new \Zend\Log\Logger();
       $logger->addWriter($writer);
       //Customer Group ID Here
       $customerGroupId=$this->_customerSession->getCustomer()->getGroupId();     
       $logger->info("Free shipping has been calling and customerGroupId ".$customerGroupId);              
       //keep your customer group id here
       if($customerGroupId === '1'){
           return false;       
       }        
       return $result;
   }  
   
   }
   

Answer 2

For this, you need to create a custom shipping method. The below link will helps you to create custom shipping method

https://webkul.com/blog/create-custom-shipping-method-in-magento2/

You can set the condition in the function collectRates in the file app/code/Webkul/Customshipping/Model/Carrier.php

Refer the below link to get customer group

How to get current customer group id in magento2