Cloud Firestore Client - Class FirestoreClient (1.47.0)

Reference documentation and code samples for the Cloud Firestore Client class FirestoreClient.

Cloud Firestore is a flexible, scalable, realtime database for mobile, web, and server development.

In production environments, it is highly recommended that you make use of the Protobuf PHP extension for improved performance. Protobuf can be installed via PECL.

$ pecl install protobuf

To enable the Google Cloud Firestore Emulator, set the FIRESTORE_EMULATOR_HOST to the value provided by the gcloud command.

Please note that Google Cloud PHP currently does not support IPv6 hostnames. If the Firestore emulator provides a IPv6 hostname, or a comma-separated list of both IPv6 and IPv4 names, be sure to set the environment variable to only an IPv4 address. The equivalent of [::1]:8080, for instance, would be 127.0.0.1:8080.

Example:

use Google\Cloud\Firestore\FirestoreClient;

$firestore = new FirestoreClient();

// Using the Firestore Emulator
use Google\Cloud\Firestore\FirestoreClient;

// Be sure to use the port specified when starting the emulator.
// `8900` is used as an example only.
putenv('FIRESTORE_EMULATOR_HOST=localhost:8900');

$firestore = new FirestoreClient();

Namespace

Google \ Cloud \ Firestore

Methods

__construct

Create a Firestore client. Please note that this client requires the gRPC extension.

Parameters
Name Description
config array

Configuration Options.
↳ apiEndpoint string

A hostname with optional port to use in place of the service's default endpoint.
↳ projectId string

The project ID from the Google Developer's Console.
↳ database string

The database name to use, if different from the default.
↳ authCache CacheItemPoolInterface

A cache for storing access tokens. Defaults to a simple in memory implementation.
↳ authCacheOptions array

Cache configuration options.
↳ authHttpHandler callable

A handler used to deliver Psr7 requests specifically for authentication.
↳ httpHandler callable

A handler used to deliver Psr7 requests. Only valid for requests sent over REST.
↳ keyFile array

The contents of the service account credentials .json file retrieved from the Google Developer's Console. Ex: json_decode(file_get_contents($path), true).
↳ keyFilePath string

The full path to your service account credentials .json file retrieved from the Google Developers Console.
↳ retries int

Number of retries for a failed request. Defaults to 3.
↳ scopes array

Scopes to be used for the request.
↳ quotaProject string

Specifies a user project to bill for access charges associated with the request.
↳ returnInt64AsObject bool

If true, 64 bit integers will be returned as a Google\Cloud\Core\Int64 object for 32 bit platform compatibility. Defaults to false.

batch

Get a Batch Writer

The Google\Cloud\Firestore\WriteBatch allows more performant multi-document, atomic updates.

Example:

$batch = $firestore->batch();
Returns
Type Description
Google\Cloud\Firestore\WriteBatch

bulkWriter

Get a Bulk Writer

Google\Cloud\Firestore\BulkWriter allows scheduling multiple writes with auto-retries in batches. Please note:

  • This method is blocking and may execute many sequential batch write requests.
  • Gradually ramps up writes as specified by the 500/50/5 rule.
  • Does not guarantee the order of writes.
  • Accepts unique document references only. Read more: Ramping up traffic

Example:

$batch = $firestore->bulkWriter();
Parameters
Name Description
options array

Configuration options.

Please note that the default values are experiementally derived after
performance evaluations. The underlying constants may change in backwards-
incompatible ways. Please use with caution, and test thoroughly when
upgrading.
↳ maxBatchSize int

Maximum number of requests per batch. Defaults to 20.
↳ greedilySend bool

Flag to indicate whether BulkWriter greedily sends batches. Defaults to true.
↳ isThrottlingEnabled bool

Flag to indicate whether rate of sending writes can be throttled. Defaults to true.
↳ initialOpsPerSecond int

Initial number of operations per second. Defaults to 20.
↳ maxOpsPerSecond int

Maximum number of operations per second. Defaults to 500.
↳ isRetryable callable

Default retry handler for individial writes status code to be retried. Should accept error code and return true if retryable.
Returns
Type Description
Google\Cloud\Firestore\BulkWriter

collection

Lazily instantiate a Collection reference.

Collections hold Firestore documents. Collections cannot be created or deleted directly - they exist only as implicit namespaces. Once no child documents remain in a collection, it ceases to exist.

Example:

$collection = $firestore->collection('users');
Parameter
Name Description
name string

The name of the collection.
Returns
Type Description
Google\Cloud\Firestore\CollectionReference

collections

See also:

Parameters
Name Description
options array

Configuration options
↳ pageSize int

Maximum number of results to return per request.
↳ resultLimit int

Limit the number of results returned in total. Defaults to 0 (return all results).
↳ pageToken string

A previously-returned page token used to resume the loading of results from a specific point.
Returns
Type Description
Google\Cloud\Core\Iterator\ItemIteratorGoogle\Cloud\Firestore\CollectionReference>

document

Get a reference to a Firestore document.

Example:

$document = $firestore->document('users/john');
Parameter
Name Description
name string

The document name or a path, relative to the database.
Returns
Type Description
Google\Cloud\Firestore\DocumentReference

documents

See also:

Parameters
Name Description
paths string[]|array<Google\Cloud\Firestore\DocumentReference>

Any combination of string paths or DocumentReference instances.
options array

Configuration options.
Returns
Type Description
array<Google\Cloud\Firestore\DocumentSnapshot>

collectionGroup

Creates a new Query which includes all documents that are contained in a collection or subcollection with the given collection ID.

A collection group query with a collection ID of foo will return documents from /foo and /abc/dce/foo, but not /foo/abc/dce.

Example:

$query = $firestore->collectionGroup('users');
$querySnapshot = $query->documents();

echo $querySnapshot->size() . ' documents found!';
Parameter
Name Description
id string

Identifies the collection to query over. Every collection or subcollection with this ID as the last segment of its path will be included. May not contain a slash.
Returns
Type Description
Google\Cloud\Firestore\Query

runTransaction

See also:

Parameters
Name Description
callable callable

A callable function, allowing atomic operations against the Firestore API. Function signature should be of form: function (Transaction $t).
options array

Configuration Options.
↳ begin array

Configuration options for BeginTransaction.
↳ commit array

Configuration options for Commit.
↳ rollback array

Configuration options for rollback.
↳ maxRetries int

The maximum number of times to retry failures. Defaults to 5.
Returns
Type Description
mixed

geoPoint

See also:

Parameters
Name Description
latitude float

The latitude
longitude float

The longitude
Returns
Type Description
Google\Cloud\Core\GeoPoint

blob

Create a new Blob

Example:

$blob = $firestore->blob('hello world');

// Blobs can be used to store binary data
$blob = $firestore->blob(file_get_contents(__DIR__ .'/family-photo.jpg'));
Parameter
Name Description
value string|resource|Psr\Http\Message\StreamInterface

The value to store in a blob.
Returns
Type Description
Google\Cloud\Core\Blob

fieldPath

Returns a FieldPath class, referring to a field in a document.

The path may consist of a single field name (referring to a top-level field in the document), or a list of field names (referring to a nested field in the document).

Example:

$path = $firestore->fieldPath(['accounts', 'usd']);
Parameter
Name Description
fieldNames array

A list of field names.
Returns
Type Description
Google\Cloud\Firestore\FieldPath

sessionHandler

Returns a FirestoreSessionHandler.

Example:

$handler = $firestore->sessionHandler();

// Configure PHP to use the Firestore session handler.
session_set_save_handler($handler, true);
session_save_path('sessions');
session_start();

// Then write and read the $_SESSION array.
$_SESSION['name'] = 'Bob';
echo $_SESSION['name'];
Parameters
Name Description
options array

Configuration Options.
↳ gcLimit int

The number of entities to delete in the garbage collection. Values larger than 500 will be limited to 500. Defaults to 0, indicating garbage collection is disabled by default.
↳ collectionNameTemplate string

A sprintf compatible template for formatting the collection name where sessions will be stored. The template receives two values, the first being the save path and the latter being the session name.
↳ begin array

Configuration options for beginTransaction.
↳ commit array

Configuration options for commit.
↳ rollback array

Configuration options for rollback.
↳ read array

Configuration options for read.
↳ query array

Configuration options for runQuery.
Returns
Type Description
Google\Cloud\Firestore\FirestoreSessionHandler

Constants

VERSION

Value: '1.47.0'

DEFAULT_DATABASE

Value: '(default)'

FULL_CONTROL_SCOPE

Value: 'https://www.googleapis.com/auth/cloud-platform'

MAX_RETRIES

Value: 5