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How to redirect a customer to another URL from Observer

In order to redirect a customer from observer you need to use another way than the Controller 


protected $_response;
protected $_objectManager;
public function __construct(
    \Magento\Framework\App\ResponseInterface $response,
    \Magento\Framework\ObjectManagerInterface $objectManager,
    ) {
        $this->_response = $response;
       $this->_objectManager = $objectManager;


then in your function you can use this 


Magento2- How Magento cache clearing works with Varnish

According to Varnish documentation, “A purge is what happens when you pick out an object from the cache and discard it along with its variants.” A Varnish purge is very similar to a Magento cache clean command (or clicking Flush Magento Cache in the Magento Admin).

In fact, as discussed in this section, when you clean, flush, or refresh the Magento cache, Varnish purges as well.


Configure Magento to purge Varnish

execute this code 

bin/magento setup:config:set --http-cache-hosts=,

Showing the total of the loaded time of the page

If you want to see the total loaded time for any page to compare the time between the first and second time you can use this command 


curl -L --output /dev/null --silent --show-error --write-out 'lookup:        %{time_namelookup}\nconnect:    %{time_connect}\nappconnect:    %{time_appconnect}\npretransfer:   %{time_pretransfer}\nredirect:      %{time_redirect}\nstarttransfer: %{time_starttransfer}\ntotal:      %{time_total}\n' ''

Disable Smile-SA / Elasticsuite

php bin/magento modeul:disable Smile_ElasticsuiteCore Smile_ElasticsuiteCatalog Smile_ElasticsuiteCatalogGraphQl Smile_ElasticsuiteCatalogRule Smile_ElasticsuiteCatalogOptimizer Smile_ElasticsuiteTracker Smile_ElasticsuiteThesaurus Smile_ElasticsuiteSwatches Smile_ElasticsuiteIndices Smile_ElasticsuiteVirtualCategory

How to use Private Content or Sections in Magento 2?

We will show here how we can display a private content in a full cached page, it is very useful if you want to display information per customer 
Magento loads sections by AJAX request to /customer/section/load/ and caches loaded data in the browser local storage under the key mage-cache-storage. Magento tracks when some section is changed and load updated section automatically.

We will use this Vendor/Module as names