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Laravel

How to create a custom filesystem adapter in Laravel

Benjamin Crozat
Published on Aug 30, 2023 0 comments Edit on GitHub
How to create a custom filesystem adapter in Laravel

Introduction

Laravel, with the help of Frank de Jonge’s Flysystem PHP package, offers a simple and consistent API to work with various filesystems like local, SFTP, Amazon S3, and more.

It also makes it a breeze to extend and offer new custom filesystems to your app. Let’s see how it works.

Create a custom filesystem adapter in Laravel, step by step

To create a filesystem adapter in Laravel, you will need to do the following:

  1. Create a new class that implements the League\Flysystem\FilesystemAdapter interface. This class, let say App\Filesystem\CustomAdapter, should implement all of the methods defined in the contract, such as write(), read(), delete(), and more.

  2. Once you have implemented all the methods of your custom filesystem adapter, you can register it with Laravel in app/Providers/AppServiceProvider.php

  3. Then, add an entry to the disks array in config/filesystems.php.

  4. Finally, you can use your custom file system adapter in your Laravel application. Leverage the Storage Facade for convenience.

OK, let’s see how all this looks like.

Here’s an example of what a custom file system adapter class looks like:

namespace App\Filesystem;

use League\Flysystem\Config;
use League\Flysystem\FilesystemAdapter;

class CustomAdapter implements FilesystemAdapter
{
    public function write(string $path, string $contents, Config $config) : void
    {
        //
    }

    public function read(string $path) : string
    {
        //
    }

    public function delete(string $path) : void
    {
        //
    }

    // There are more methods to implement.
}

Next, register your custom file system with Laravel:

namespace App\Providers;
 
use App\Filesystem\CustomAdapter;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\ServiceProvider;
use Illuminate\Filesystem\FilesystemAdapter;
use Illuminate\Contracts\Foundation\Application;
 
class AppServiceProvider extends ServiceProvider
{
    public function boot() : void
    {
        Storage::extend('custom', function (Application $app, array $config) {
            return new FilesystemAdapter(
                new Filesystem(new CustomAdapter, $config),
                $adapter,
                $config
            );
        });
    }
}

Then, this is how you can register your custom filesystem adapter in the config/filesystems.php configuration file:

'disks' => [
    'custom' => [
        'driver' => App\Filesystem\CustomAdapter::class,
    ],
],

And finally, you can use your custom filesystem adapter in your Laravel code like this:

use Illuminate\Support\Facades\Storage;

Storage::disk('my-custom-driver')->put('lorem.txt', 'Lorem ipsum dolor sit amet.');

Wait, there's more!

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