Downloading files programmatically in Magento 2 requires creating a custom controller that leverages the class. This approach is essential for serving files stored in restricted directories like /var or /pub , which are not directly accessible via a browser URL. Key Components for File Downloads
To implement a file download, you must inject and use specific Magento framework classes: magento 2 controller download file
: The primary class used to generate the download response. 'value' => 'path/to/file.csv'
$content = [ 'type' => 'filename', 'value' => 'path/to/file.csv', 'rm' => true // Deletes file after download ]; return $this->fileFactory->create('download_name.csv', $content, DirectoryList::VAR_DIR); Use code with caution. Common Download Scenarios : Use DirectoryList::VAR_DIR . magento 2 controller download file