{"id":8611,"date":"2019-09-20T19:08:34","date_gmt":"2019-09-20T19:08:34","guid":{"rendered":"https:\/\/alexrusin.com\/?p=8611"},"modified":"2019-09-20T19:12:05","modified_gmt":"2019-09-20T19:12:05","slug":"stream-files-from-s3","status":"publish","type":"post","link":"https:\/\/blog.alexrusin.com\/stream-files-from-s3\/","title":{"rendered":"Stream Files From S3"},"content":{"rendered":"\n<p>When using S3 as our external storage, sometimes we have to let users download files from S3.  If file is too large, it may not fit in the memory.  The solution is to stream file into user&#8217;s browser straight from S3.  Let&#8217;s take a look how to do it with  Laravel&#8217;s Filesystem.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"php\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$path = 'path\/to\/my\/report.csv'\n$adapter = Storage::getAdapter();\n$client = $adapter->getClient();\n$client->registerStreamWrapper();\n\n$object = $client->headObject([\n    'Bucket' => $adapter->getBucket(),\n    'Key' => $path,\n]);\n\n$fileName = basename($path);\n\n$headers = [\n    'Last-Modified' => $object['LastModified'],\n    'Accept-Ranges' => $object['AcceptRanges'],\n    'Content-Length' => $object['ContentLength'],\n    'Content-type'        => 'text\/csv',\n    'Content-Disposition' => 'attachment; filename='. $fileName,\n];\n\n\nreturn response()->stream(function () use ($adapter, $export) {\n    if ($stream = fopen(\"s3:\/\/{$adapter->getBucket()}\/\". $path, 'r')) {\n        while (!feof($stream)) {\n            echo fread($stream, 1024);\n        }\n        fclose($stream);\n    }    \n}, 200, $headers);<\/pre>\n\n\n\n<p>There are 2 main things to pay attention to: 1) we need to register <em>s3<\/em> stream wrapper ($client->registerStreamWrapper()) 2) we need to set <em>Content-Disposition <\/em>header to allow user&#8217;s browser to force a download.<\/p>\n\n\n\n<p>The streaming is easy enough to do if you are using plain PHP.  Please take a look at the Resources Used links to get an idea how to do that.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Resources Used<\/h4>\n\n\n\n<p><a href=\"https:\/\/aws.amazon.com\/blogs\/developer\/amazon-s3-php-stream-wrapper\/\">https:\/\/aws.amazon.com\/blogs\/developer\/amazon-s3-php-stream-wrapper\/<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/gist.github.com\/fideloper\/6ada632650d8677ba23963ab4eae6b48\">https:\/\/gist.github.com\/fideloper\/6ada632650d8677ba23963ab4eae6b48<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When using S3 as our external storage, sometimes we have to let users download files from S3. If file is too large, it may not fit in the memory. The solution is to stream file into user&#8217;s browser straight from S3. Let&#8217;s take a look how to do it with Laravel&#8217;s Filesystem. There are 2&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[12,10],"tags":[],"class_list":["post-8611","post","type-post","status-publish","format-standard","hentry","category-laravel","category-php-mysql-development"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Stream Files From S3 | Alex Rusin Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.alexrusin.com\/stream-files-from-s3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stream Files From S3 | Alex Rusin Blog\" \/>\n<meta property=\"og:description\" content=\"When using S3 as our external storage, sometimes we have to let users download files from S3. 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