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. |
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. |