Follow the below steps to generate invoice PDF & save it on the server at invoice creation time.
1. Create file event.xml on app/code/Magemonkeys/Saveinvoice/etc
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<?xml version="1.0"?> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd"> <event name="sales_order_invoice_save_after"> <observer name="save_invoice_pdf" instance="Magemonkeys\Saveinvoice\Observer\Saveinvoice" /> </event> </config> |
2. Create file Saveinvoice.php on app/code/Magemonkeys/Saveinvoice/Observer
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<?php namespace Magemonkeys\Saveinvoice\Observer; use Magento\Framework\Event\ObserverInterface; class Saveinvoice implements ObserverInterface { protected $_pdfInvoiceModel; protected $_outputDirectory; private $_myPdfStorageSubDirectory = "pdfinvoices"; public function __construct( \Magento\Sales\Model\Order\Pdf\Invoice $pdfInvoiceModel, \Magento\Framework\Filesystem $filesystem ) { $this->_pdfInvoiceModel = $pdfInvoiceModel; $this->_outputDirectory = $filesystem->getDirectoryWrite(\Magento\Framework\App\Filesystem\DirectoryList::VAR_DIR); } public function execute(\Magento\Framework\Event\Observer $observer) { try{ $invoice = $observer->getEvent()->getInvoice(); $pdfContent = $this->_pdfInvoiceModel->getPdf([$invoice])->render(); //save to file var/pdfinvoices/[IncrementID].pdf $this->_outputDirectory->writeFile($this->_myPdfStorageSubDirectory. "/" . $invoice->getIncrementId() . ".pdf" ,$pdfContent); } catch (Exception $e){ $message = $e->getMessage(); } return $this; } } |