Google Cloud Storage Filesystem Driver for Laravel by Spatie

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.