A fast and simple streaming zip file downloader for Laravel.
- Builds zip files from local or S3 file sources, or any other PSR7 stream.
- Provides a direct download stream to your user. The zip download begins immediately even though the zip is still being created. No need to save the zip to disk first.
- Calculates the zip filesize up front for the
Content-Length
header. The user gets an accurate download time estimate in their browser. - Built on top of the excellent ZipStream-PHP library.
Upgrading from version 4? Make sure to look at the release notes for version 5. There are some breaking changes.
https://github.com/stechstudio/laravel-zipstream/releases/tag/5.0
composer require stechstudio/laravel-zipstream
The service provider and facade will be automatically wired up.
use STS\ZipStream\Facades\Zip;
class ZipController {
public function build()
{
return Zip::create("package.zip", [
"/path/to/Some File.pdf",
"/path/to/Export.xlsx"
]);
}
}
That's it! A StreamedResponse
will be returned and the zip contents built and streamed out. The user's browser will begin downloading a package.zip
file immediately.
By default, any files you add will be stored in the root of the zip, with their original filenames.
You can customize the filename and even create sub-folders within the zip by providing your files array with key/value pairs:
Zip::create("package.zip", [
// Will be stored as `Some File.pdf` in the zip
"/path/to/Some File.pdf",
// Will be stored as `Export.xlsx` in the zip
"/path/to/data.xlsx" => 'Export.xlsx',
// Will create a `log` subfolder in the zip and be stored as `log/details.txt`
"/path/to/log.txt" => "log/details.txt"
]);
You can also provide your files one at a time:
Zip::create("package.zip")
->add("/path/to/Some File.pdf")
->add("/path/to/data.xlsx", 'Export.xlsx')
->add("/path/to/log.txt", "log/details.txt");
You can add HTTP URLs as the source filepath. Note that zip filesize can only be calculated up front if the HTTP source provides a Content-Length
header, not all URLs do.
Zip::create("package.zip")
->add("https://...", "myfile.pdf");
You can provide raw data instead of a filepath:
Zip::create("package.zip")
->addRaw("...file contents...", "hello.txt");
You can add files from a storage disk. Use addFromDisk
and provide the disk name or disk instance as the first argument:
Zip::create("package.zip")
->addFromDisk("local", "file.txt", "My File.txt")
->addFromDisk(Storage::disk("tmp"), "important.txt")
You can stream files from S3 into your zip.
-
Install the
aws/aws-sdk-php
package -
Set up an AWS IAM user with
s3:GetObject
permission for the S3 bucket and objects you intend to zip up. -
Store your credentials as
AWS_ACCESS_KEY_ID
,AWS_SECRET_ACCESS_KEY
, andAWS_DEFAULT_REGION
in your .env file.
Provide s3://
paths when creating the zip:
Zip::create("package.zip")
->add("s3://bucket-name/path/to/object.pdf", "Something.pdf");
By default, this package will try to create an S3 client using the same .env file credentials that Laravel uses. If needed, you can wire up a custom S3 client to the zipstream.s3client
container key. Or you can even pass in your own S3 client when adding a file to the zip. To do this, you'll need to create an S3File
model instance yourself so that you can provide the client, like this:
use STS\ZipStream\Models\S3File;
// Create your own client however necessary
$s3 = new Aws\S3\S3Client();
Zip::create("package.zip")->add(
S3File::make("s3://bucket-name/path/to/object.pdf")->setS3Client($s3)
);
Instead of specifying an absolute s3://
path, you can use addFromDisk
and specify a disk that uses the s3
driver:
Zip::create("package.zip")
->addFromDisk("s3", "object.pdf", "Something.pdf");
In this case the S3 client from the storage disk will be used.
It can be expensive retrieving filesizes for some file sources such as S3 or HTTP. These require dedicated calls, and can add up to a lot of time if you are zipping up many files. If you store filesizes in your database and have them available, you can drastically improve performance by providing filesizes when you add files. You'll need to make your own File models instead of adding paths directly to the zip.
Let's say you have a collection of Eloquent $files
, are looping through and building a zip. If you have a filesize
attribute available, it would look something like this:
use STS\ZipStream\Models\File;
// Retrieve file records from the database
$files = ...;
$zip = Zip::create("package.zip");
foreach($files AS $file) {
$zip->add(
File::make($file->path, $file->name)->setFilesize($file->size)
);
}
Or if you are adding from an S3 disk:
$zip->add(
File::makeFromDisk('s3', $file->key, $file->name)->setFilesize($file->size)
);
By default, this package attempts to predict the final zip size and sends a Content-Length
header up front. This means users will see accurate progress on their download, even though the zip is being streamed out as it is created!
This only works if files are not compressed.
If you have issues with the zip size prediction you can disable it with ZIPSTREAM_PREDICT_SIZE=false
in your .env file.
By default, this package uses no compression. Why?
- This makes building the zips super fast, and is light on your CPU
- This makes it possible to predict the final zip size as mentioned above.
If you want to compress your zip files set ZIPSTREAM_COMPRESSION_METHOD=deflate
in your .env file. Just realize this will disable the Content-Length
header.
Even though the primary goal of this package is to enable zip downloads without saving to disk, there may be times you'd like to generate a zip on disk as well. And you might as well make use of this package to do so.
Use the saveTo
method to write the entire zip to disk immediately. Note that this expects a folder path, the zip name will be appended.
Zip::create("package.zip")
// ... add files ...
->saveTo("/path/to/folder");
And yes, if you've properly setup and configured S3 you can even save to an S3 bucket/path.
Zip::create("package.zip")
// ... add files ...
->saveTo("s3://bucket-name/path/to/folder");
Or you can save to a disk:
Zip::create("package.zip")
// ... add files ...
->saveToDisk("s3", "folder");
What if you have a lot of users requesting the same zip payload? It might be nice to stream out the zip while also caching it to disk for the future.
Use the cache
method to provide a cache path. Note this should be the entire path including filename.
Zip::create("package.zip")
// ... add files ...
->cache("/path/to/folder/some-unique-cache-name.zip");
Or you can cache to a disk:
Zip::create("package.zip")
// ... add files ...
->cacheToDisk("s3", "folder/some-unique-cache-name.zip");
You might use an internal DB id for your cache name, so that the next time a user requests a zip download you can determine if one is already built and just hand it back.
STS\ZipStream\Events\ZipStreaming
: Dispatched when a new zip stream begins processingSTS\ZipStream\Events\ZipStreamed
: Dispatched when a zip finishes streaming
By default, this package will try to translate any non-ascii character in filename or folder's name to ascii. For example, if your filename is 中文_にほんご_Ч_Ɯ_☺_someascii.txt
. It will become __C___someascii.txt
using Laravel's Str::ascii($path)
.
If you need to preserve non-ascii characters, you can disable this feature with an .env
setting:
ZIPSTREAM_ASCII_FILENAMES=false
The MIT License (MIT). Please see License File for more information.