Class FirestoreBundle (2.6.0)

FirestoreBundle(name: str)

A group of serialized documents and queries, suitable for longterm storage or query resumption.

If any queries are added to this bundle, all associated documents will be loaded and stored in memory for serialization.

Usage:

from google.cloud.firestore import Client, _helpers
from google.cloud.firestore_bundle import FirestoreBundle

db = Client()
bundle = FirestoreBundle('my-bundle')
bundle.add_named_query('all-users', db.collection('users')._query())
bundle.add_named_query(
    'top-ten-hamburgers',
    db.collection('hamburgers').limit(limit=10),
)
serialized: str = bundle.build()

# Store somewhere like a Google Cloud Storage bucket for retrieval by
# a client SDK.

Parameter

Name	Description
name	`str` The Id of the bundle.

Inheritance

builtins.object > FirestoreBundle

Methods

add_document

add_document(snapshot: google.cloud.firestore_v1.base_document.DocumentSnapshot)

Adds a document to the bundle.

Parameter

Name	Description
snapshot	`DocumentSnapshot Example: .. code-block:: python from google.cloud import firestore db = firestore.Client() collection_ref = db.collection(u'users') bundle = firestore.FirestoreBundle('my bundle') bundle.add_document(collection_ref.documents('some_id').get())` The fully-loaded Firestore document to be preserved.

Returns

Type	Description
FirestoreBundle	self

add_named_query

add_named_query(name: str, query: google.cloud.firestore_v1.base_query.BaseQuery)

Adds a query to the bundle, referenced by the provided name.

Parameters

Name	Description
name	`str` The name by which the provided query should be referenced.
query	`Query Example: .. code-block:: python from google.cloud import firestore db = firestore.Client() collection_ref = db.collection(u'users') bundle = firestore.FirestoreBundle('my bundle') bundle.add_named_query('all the users', collection_ref._query())` Query of documents to be fully loaded and stored in the bundle for future access.

Exceptions

Type	Description
ValueError	If anything other than a BaseQuery (e.g., a Collection) is supplied. If you have a Collection, call its `_query()` method to get what this method expects.
ValueError	If the supplied name has already been added.

Returns

Type	Description
FirestoreBundle	self

build

build()

Iterates over the bundle's stored documents and queries and produces a single length-prefixed json string suitable for long-term storage.

Example:

from google.cloud import firestore

db = firestore.Client()
collection_ref = db.collection(u'users')

bundle = firestore.FirestoreBundle('my bundle')
bundle.add_named_query('app-users', collection_ref._query())

serialized_bundle: str = bundle.build()

# Now upload `serialized_bundle` to Google Cloud Storage, store it
# in Memorystore, or any other storage solution.

Returns

Type	Description
str	The length-prefixed string representation of this bundle' contents.