flush cache and reindexing programatically in magento 2

Tutorial “flush cache and reindexing programatically in magento 2”, which will be help you to flush cache and reindexing magento 2 programatically . I have also posted same article for magento 1 reindexing-magento-programmatically .

1. Reindex:

1.1.By CMD:

    php bin/magento indexer:reindex //for all
    php bin/magento indexer:reindex catalog_category_product //for specific id

1 2	php bin/magento indexer:reindex //for all php bin/magento indexer:reindex catalog_category_product //for specific id

1.2.Programatically:

1.2.1.By Using DI:

	/**
    * @var \Magento\Indexer\Model\IndexerFactory
    */
    protected $_indexerFactory;
    
    /**
    * @var \Magento\Indexer\Model\Indexer\CollectionFactory
    */
    protected $_indexerCollectionFactory;
    	
    public function __construct(
    	\Magento\Indexer\Model\IndexerFactory $indexerFactory,
    	\Magento\Indexer\Model\Indexer\CollectionFactory $indexerCollectionFactory
    ){
    	$this-&gt;_indexerFactory = $indexerFactory;
    	$this-&gt;_indexerCollectionFactory = $indexerCollectionFactory;
    }
    // custom function for reindexing
    public function reIndexing(){
    	$indexerCollection = $this-&gt;_indexerCollectionFactory-&gt;create();
    	$allIds = $indexerCollection-&gt;getAllIds();
    
    	foreach ($allIds as $id) {
    		$indexer = $this-&gt;_indexerFactory-&gt;create()-&gt;load($id);
    		//$indexer-&gt;reindexRow($id); // or you can use reindexRow according to your need
    		$indexer-&gt;reindexAll(); // this reindexes all
    	}
    }

/**

* @var \Magento\Indexer\Model\IndexerFactory

protected $_indexerFactory;

/**

* @var \Magento\Indexer\Model\Indexer\CollectionFactory

protected $_indexerCollectionFactory;

public function __construct(

\Magento\Indexer\Model\IndexerFactory $indexerFactory,

\Magento\Indexer\Model\Indexer\CollectionFactory $indexerCollectionFactory

){

$this->_indexerFactory = $indexerFactory;

$this->_indexerCollectionFactory = $indexerCollectionFactory;

}

// custom function for reindexing

public function reIndexing(){

$indexerCollection = $this->_indexerCollectionFactory->create();

$allIds = $indexerCollection->getAllIds();

foreach ($allIds as $id) {

$indexer = $this->_indexerFactory->create()->load($id);

//$indexer->reindexRow($id); // or you can use reindexRow according to your need

$indexer->reindexAll(); // this reindexes all

}

1.2.2.By using OM:

	$obj = \Magento\Framework\App\ObjectManager::getInstance();
    $indexerCollectionFactory = $obj-&gt;get("\Magento\Indexer\Model\Indexer\CollectionFactory");
    $indexerFactory = $obj-&gt;get("\Magento\Indexer\Model\IndexerFactory");
    
    // custom function for reindexing
    public function reIndexing(){
    	$indexerCollection = $indexerCollectionFactory-&gt;create();
    	$allIds = $indexerCollection-&gt;getAllIds();
    
    	foreach ($allIds as $id) {
    		$indexer = $indexerFactory-&gt;create()-&gt;load($id);
    		//$indexer-&gt;reindexRow($id); // or you can use reindexRow according to your need
    		$indexer-&gt;reindexAll(); // this reindexes all
    	}
    }

$obj = \Magento\Framework\App\ObjectManager::getInstance();

$indexerCollectionFactory = $obj->get("\Magento\Indexer\Model\Indexer\CollectionFactory");

$indexerFactory = $obj->get("\Magento\Indexer\Model\IndexerFactory");

// custom function for reindexing

public function reIndexing(){

$indexerCollection = $indexerCollectionFactory->create();

$allIds = $indexerCollection->getAllIds();

foreach ($allIds as $id) {

$indexer = $indexerFactory->create()->load($id);

//$indexer->reindexRow($id); // or you can use reindexRow according to your need

$indexer->reindexAll(); // this reindexes all

}

2.Cache flush/Clean:

2.1.CMD:

	php bin/magento cache:clean
    php bin/magento cache:flush

1 2	php bin/magento cache:clean php bin/magento cache:flush

2.2.Programmatically:

2.2.1.Using DI:

	public function __construct(
        Context $context,
        \Magento\Framework\App\Cache\TypeListInterface $cacheTypeList,
        \Magento\Framework\App\Cache\Frontend\Pool $cacheFrontendPool
    ) {
        parent::__construct($context);
        $this-&gt;_cacheTypeList = $cacheTypeList;
        $this-&gt;_cacheFrontendPool = $cacheFrontendPool;
    }
    
    
    $types = array('config','layout','block_html','collections','reflection','db_ddl','eav','config_integration','config_integration_api','full_page','translate','config_webservice');
    foreach ($types as $type) {
        $this-&gt;_cacheTypeList-&gt;cleanType($type);
    }
    foreach ($this-&gt;_cacheFrontendPool as $cacheFrontend) {
        $cacheFrontend-&gt;getBackend()-&gt;clean();
    }

public function __construct(

Context $context,

\Magento\Framework\App\Cache\TypeListInterface $cacheTypeList,

\Magento\Framework\App\Cache\Frontend\Pool $cacheFrontendPool

) {

parent::__construct($context);

$this->_cacheTypeList = $cacheTypeList;

$this->_cacheFrontendPool = $cacheFrontendPool;

}

$types = array('config','layout','block_html','collections','reflection','db_ddl','eav','config_integration','config_integration_api','full_page','translate','config_webservice');

foreach ($types as $type) {

$this->_cacheTypeList->cleanType($type);

}

foreach ($this->_cacheFrontendPool as $cacheFrontend) {

$cacheFrontend->getBackend()->clean();

}

2.2.2.Using OM:

	$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    
    try{
        $_cacheTypeList = $objectManager-&gt;create('Magento\Framework\App\Cache\TypeListInterface');
        $_cacheFrontendPool = $objectManager-&gt;create('Magento\Framework\App\Cache\Frontend\Pool');
        $types = array('config','layout','block_html','collections','reflection','db_ddl','eav','config_integration','config_integration_api','full_page','translate','config_webservice');
        foreach ($types as $type) {
            $_cacheTypeList-&gt;cleanType($type);
        }is
        foreach ($_cacheFrontendPool as $cacheFrontend) {
            $cacheFrontend-&gt;getBackend()-&gt;clean();
        }
    }catch(Exception $e){
        echo $msg = 'Error : '.$e-&gt;getMessage();die();
    }

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();

try{

$_cacheTypeList = $objectManager->create('Magento\Framework\App\Cache\TypeListInterface');

$_cacheFrontendPool = $objectManager->create('Magento\Framework\App\Cache\Frontend\Pool');

$types = array('config','layout','block_html','collections','reflection','db_ddl','eav','config_integration','config_integration_api','full_page','translate','config_webservice');

foreach ($types as $type) {

$_cacheTypeList->cleanType($type);

}is

foreach ($_cacheFrontendPool as $cacheFrontend) {

$cacheFrontend->getBackend()->clean();

}

}catch(Exception $e){

echo $msg = 'Error : '.$e->getMessage();die();

}

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