> i want to redirect from observer to the default magento product url.


    public function __construct(
    		    \Magento\Framework\App\ResponseFactory $responseFactory
    		) {
    		
    			  $this->_responseFactory = $responseFactory;
    		}
    		
            public function execute(Observer $observer) {
    			
    				$productUrl = $currentProduct->getProductUrl();	
    				//$RedirectUrl= $this->_url->getUrl('chennaievent\index\index');
                    return $this->_responseFactory->create()->setRedirect($productUrl)->sendResponse();
    				
    			}
    			
    			 
    		}