Spatie has launched the Google Cloud Storage filesystem driver for Laravel 9. It is using Flysystem v2 and its own GCS adapter.

Installation

You can install the package via composer:

composer require spatie/laravel-google-cloud-storage

Next, add a new disk to your filesystems.php config:

'gcs' => [
    'driver' => 'gcs',
    'key_file_path' => env('GOOGLE_CLOUD_KEY_FILE', null), // optional: /path/to/service-account.json
    'key_file' => [], // optional: Array of data that substitutes the .json file (see below)
    'project_id' => env('GOOGLE_CLOUD_PROJECT_ID', 'your-project-id'), // optional: is included in key file
    'bucket' => env('GOOGLE_CLOUD_STORAGE_BUCKET', 'your-bucket'),
    'path_prefix' => env('GOOGLE_CLOUD_STORAGE_PATH_PREFIX', ''), // optional: /default/path/to/apply/in/bucket
    'storage_api_uri' => env('GOOGLE_CLOUD_STORAGE_API_URI', null), // see: Public URLs below
    'visibility' => 'public', // optional: public|private
    'metadata' => ['cacheControl'=> 'public,max-age=86400'], // optional: default metadata
],

Usage

$disk = Storage::disk('gcs');

$disk->put('avatars/1', $fileContents);
$exists = $disk->exists('file.jpg');
$time = $disk->lastModified('file1.jpg');
$disk->copy('old/file1.jpg', 'new/file1.jpg');
$disk->move('old/file1.jpg', 'new/file1.jpg');
$url = $disk->url('folder/my_file.txt');
$url = $disk->temporaryUrl('folder/my_file.txt', now()->addMinutes(30));
$disk->setVisibility('folder/my_file.txt', 'public');

Authentication

The Google Client uses a few methods to determine how it should authenticate with the Google API.

1. If you specify a path in the key key_file in disk config, that json credentials file will be used.
2. If the GOOGLE_APPLICATION_CREDENTIALS env var is set, it will use that.

putenv('GOOGLE_APPLICATION_CREDENTIALS=/path/to/service-account.json');

3. It will then try to load the key file from a ‘well-known path’:

• windows: %APPDATA%/gcloud/application_default_credentials.json
• others: $HOME/.config/gcloud/application_default_credentials.json

4. If running in Google App Engine, the built-in service account associated with the application will be used.

5. If running in Google Compute Engine, the built-in service account associated with the virtual machine instance will be used.

6. If you want to authenticate directly without using a json file, you can specify an array for key_file in disk config with this data:

'key_file' => [
    'type' => env('GOOGLE_CLOUD_ACCOUNT_TYPE'),
    'private_key_id' => env('GOOGLE_CLOUD_PRIVATE_KEY_ID'),
    'private_key' => env('GOOGLE_CLOUD_PRIVATE_KEY'),
    'client_email' => env('GOOGLE_CLOUD_CLIENT_EMAIL'),
    'client_id' => env('GOOGLE_CLOUD_CLIENT_ID'),
    'auth_uri' => env('GOOGLE_CLOUD_AUTH_URI'),
    'token_uri' => env('GOOGLE_CLOUD_TOKEN_URI'),
    'auth_provider_x509_cert_url' => env('GOOGLE_CLOUD_AUTH_PROVIDER_CERT_URL'),
    'client_x509_cert_url' => env('GOOGLE_CLOUD_CLIENT_CERT_URL'),
],

Public URLs

The adapter implements a getUrl($path) method which returns a public URL to a file.

Note: Method available for Laravel 5.2 and higher. If used on 5.1, it will throw an exception.

$disk = Storage::disk('gcs');
$url = $disk->url('folder/my_file.txt');
// http://storage.googleapis.com/bucket-name/folder/my_file.txt

If you configure a path_prefix in your config:

$disk = Storage::disk('gcs');
$url = $disk->url('folder/my_file.txt');
// http://storage.googleapis.com/bucket-name/path-prefix/folder/my_file.txt

If you configure a custom storage_api_uri in your config:

$disk = Storage::disk('gcs');
$url = $disk->url('folder/my_file.txt');
// http://your-custom-domain.com/bucket-name/path-prefix/folder/my_file.txt

For a custom domain (storage api uri), you will need to configure a CNAME DNS entry pointing to storage.googleapis.com.

Temporary / Signed URLs

With the latest adapter versions, you can easily generate a signed URLs for files that are not publicly visible by default.

$disk = Storage::disk('gcs');
$url = $disk->temporaryUrl('folder/my_file.txt', now()->addMinutes(30));
// https://storage.googleapis.com/test-bucket/folder/my_file.txt?GoogleAccessId=test-bucket%40test-gcp.iam.gserviceaccount.com&Expires=1571151576&Signature=tvxN1OS1txkWAUF0cCR3FWK%seRZXtFu42%04%YZACYL2zFQxA%uwdGEmdO1KgsHR3vBF%I9KaEzPbl4b7ic2IWUuo8Jh3IoZFqdTQec3KypjDtt%02DGwm%OO6pWDVV421Yp4z520%o5oMqGBtV8B3XmjW2PH76P3uID2QY%AlFxn23oE9PBoM2wXr8pDXhMPwZNJ0FtckSc26O8PmfVsG7Jvln%CQTU57IFyB7JnNxz5tQpc2hPTHbCGrcxVPEISvdOamW3I%83OsXr5raaYYBPcuumDnAmrK%cyS9%Ky2fL2B2shFO2cz%KRu79DBPqtnP2Zf1mJWBTwxVUCK2jxEEYcXBXtdOszIvlI6%tp2XfVwYxLNFU

If you want to know more about this package you can visit its complete documentation and source code on Github.