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client.py
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client.py
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# -*- coding: utf-8 -*-
# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from collections import OrderedDict
import os
import re
from typing import (
Dict,
Mapping,
MutableMapping,
MutableSequence,
Optional,
Sequence,
Tuple,
Type,
Union,
cast,
)
from google.cloud.datastore_admin_v1 import gapic_version as package_version
from google.api_core import client_options as client_options_lib
from google.api_core import exceptions as core_exceptions
from google.api_core import gapic_v1
from google.api_core import retry as retries
from google.auth import credentials as ga_credentials # type: ignore
from google.auth.transport import mtls # type: ignore
from google.auth.transport.grpc import SslCredentials # type: ignore
from google.auth.exceptions import MutualTLSChannelError # type: ignore
from google.oauth2 import service_account # type: ignore
try:
OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
except AttributeError: # pragma: NO COVER
OptionalRetry = Union[retries.Retry, object] # type: ignore
from google.api_core import operation # type: ignore
from google.api_core import operation_async # type: ignore
from google.cloud.datastore_admin_v1.services.datastore_admin import pagers
from google.cloud.datastore_admin_v1.types import datastore_admin
from google.cloud.datastore_admin_v1.types import index
from google.protobuf import empty_pb2 # type: ignore
from .transports.base import DatastoreAdminTransport, DEFAULT_CLIENT_INFO
from .transports.grpc import DatastoreAdminGrpcTransport
from .transports.grpc_asyncio import DatastoreAdminGrpcAsyncIOTransport
class DatastoreAdminClientMeta(type):
"""Metaclass for the DatastoreAdmin client.
This provides class-level methods for building and retrieving
support objects (e.g. transport) without polluting the client instance
objects.
"""
_transport_registry = (
OrderedDict()
) # type: Dict[str, Type[DatastoreAdminTransport]]
_transport_registry["grpc"] = DatastoreAdminGrpcTransport
_transport_registry["grpc_asyncio"] = DatastoreAdminGrpcAsyncIOTransport
def get_transport_class(
cls,
label: Optional[str] = None,
) -> Type[DatastoreAdminTransport]:
"""Returns an appropriate transport class.
Args:
label: The name of the desired transport. If none is
provided, then the first transport in the registry is used.
Returns:
The transport class to use.
"""
# If a specific transport is requested, return that one.
if label:
return cls._transport_registry[label]
# No transport is requested; return the default (that is, the first one
# in the dictionary).
return next(iter(cls._transport_registry.values()))
class DatastoreAdminClient(metaclass=DatastoreAdminClientMeta):
"""Google Cloud Datastore Admin API
The Datastore Admin API provides several admin services for
Cloud Datastore.
## Concepts
Project, namespace, kind, and entity as defined in the Google
Cloud Datastore API.
Operation: An Operation represents work being performed in the
background.
EntityFilter: Allows specifying a subset of entities in a
project. This is specified as a combination of kinds and
namespaces (either or both of which may be all).
## Services
# Export/Import
The Export/Import service provides the ability to copy all or a
subset of entities to/from Google Cloud Storage.
Exported data may be imported into Cloud Datastore for any
Google Cloud Platform project. It is not restricted to the
export source project. It is possible to export from one project
and then import into another.
Exported data can also be loaded into Google BigQuery for
analysis.
Exports and imports are performed asynchronously. An Operation
resource is created for each export/import. The state (including
any errors encountered) of the export/import may be queried via
the Operation resource.
# Index
The index service manages Cloud Datastore composite indexes.
Index creation and deletion are performed asynchronously. An
Operation resource is created for each such asynchronous
operation. The state of the operation (including any errors
encountered) may be queried via the Operation resource.
# Operation
The Operations collection provides a record of actions performed
for the specified project (including any operations in
progress). Operations are not created directly but through calls
on other collections or resources.
An operation that is not yet done may be cancelled. The request
to cancel is asynchronous and the operation may continue to run
for some time after the request to cancel is made.
An operation that is done may be deleted so that it is no longer
listed as part of the Operation collection.
ListOperations returns all pending operations, but not completed
operations.
Operations are created by service DatastoreAdmin,
but are accessed via service google.longrunning.Operations.
"""
@staticmethod
def _get_default_mtls_endpoint(api_endpoint):
"""Converts api endpoint to mTLS endpoint.
Convert "*.sandbox.googleapis.com" and "*.googleapis.com" to
"*.mtls.sandbox.googleapis.com" and "*.mtls.googleapis.com" respectively.
Args:
api_endpoint (Optional[str]): the api endpoint to convert.
Returns:
str: converted mTLS api endpoint.
"""
if not api_endpoint:
return api_endpoint
mtls_endpoint_re = re.compile(
r"(?P<name>[^.]+)(?P<mtls>\.mtls)?(?P<sandbox>\.sandbox)?(?P<googledomain>\.googleapis\.com)?"
)
m = mtls_endpoint_re.match(api_endpoint)
name, mtls, sandbox, googledomain = m.groups()
if mtls or not googledomain:
return api_endpoint
if sandbox:
return api_endpoint.replace(
"sandbox.googleapis.com", "mtls.sandbox.googleapis.com"
)
return api_endpoint.replace(".googleapis.com", ".mtls.googleapis.com")
DEFAULT_ENDPOINT = "datastore.googleapis.com"
DEFAULT_MTLS_ENDPOINT = _get_default_mtls_endpoint.__func__( # type: ignore
DEFAULT_ENDPOINT
)
@classmethod
def from_service_account_info(cls, info: dict, *args, **kwargs):
"""Creates an instance of this client using the provided credentials
info.
Args:
info (dict): The service account private key info.
args: Additional arguments to pass to the constructor.
kwargs: Additional arguments to pass to the constructor.
Returns:
DatastoreAdminClient: The constructed client.
"""
credentials = service_account.Credentials.from_service_account_info(info)
kwargs["credentials"] = credentials
return cls(*args, **kwargs)
@classmethod
def from_service_account_file(cls, filename: str, *args, **kwargs):
"""Creates an instance of this client using the provided credentials
file.
Args:
filename (str): The path to the service account private key json
file.
args: Additional arguments to pass to the constructor.
kwargs: Additional arguments to pass to the constructor.
Returns:
DatastoreAdminClient: The constructed client.
"""
credentials = service_account.Credentials.from_service_account_file(filename)
kwargs["credentials"] = credentials
return cls(*args, **kwargs)
from_service_account_json = from_service_account_file
@property
def transport(self) -> DatastoreAdminTransport:
"""Returns the transport used by the client instance.
Returns:
DatastoreAdminTransport: The transport used by the client
instance.
"""
return self._transport
@staticmethod
def common_billing_account_path(
billing_account: str,
) -> str:
"""Returns a fully-qualified billing_account string."""
return "billingAccounts/{billing_account}".format(
billing_account=billing_account,
)
@staticmethod
def parse_common_billing_account_path(path: str) -> Dict[str, str]:
"""Parse a billing_account path into its component segments."""
m = re.match(r"^billingAccounts/(?P<billing_account>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_folder_path(
folder: str,
) -> str:
"""Returns a fully-qualified folder string."""
return "folders/{folder}".format(
folder=folder,
)
@staticmethod
def parse_common_folder_path(path: str) -> Dict[str, str]:
"""Parse a folder path into its component segments."""
m = re.match(r"^folders/(?P<folder>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_organization_path(
organization: str,
) -> str:
"""Returns a fully-qualified organization string."""
return "organizations/{organization}".format(
organization=organization,
)
@staticmethod
def parse_common_organization_path(path: str) -> Dict[str, str]:
"""Parse a organization path into its component segments."""
m = re.match(r"^organizations/(?P<organization>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_project_path(
project: str,
) -> str:
"""Returns a fully-qualified project string."""
return "projects/{project}".format(
project=project,
)
@staticmethod
def parse_common_project_path(path: str) -> Dict[str, str]:
"""Parse a project path into its component segments."""
m = re.match(r"^projects/(?P<project>.+?)$", path)
return m.groupdict() if m else {}
@staticmethod
def common_location_path(
project: str,
location: str,
) -> str:
"""Returns a fully-qualified location string."""
return "projects/{project}/locations/{location}".format(
project=project,
location=location,
)
@staticmethod
def parse_common_location_path(path: str) -> Dict[str, str]:
"""Parse a location path into its component segments."""
m = re.match(r"^projects/(?P<project>.+?)/locations/(?P<location>.+?)$", path)
return m.groupdict() if m else {}
@classmethod
def get_mtls_endpoint_and_cert_source(
cls, client_options: Optional[client_options_lib.ClientOptions] = None
):
"""Return the API endpoint and client cert source for mutual TLS.
The client cert source is determined in the following order:
(1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
client cert source is None.
(2) if `client_options.client_cert_source` is provided, use the provided one; if the
default client cert source exists, use the default one; otherwise the client cert
source is None.
The API endpoint is determined in the following order:
(1) if `client_options.api_endpoint` if provided, use the provided one.
(2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
default mTLS endpoint; if the environment variabel is "never", use the default API
endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
use the default API endpoint.
More details can be found at https://google.aip.dev/auth/4114.
Args:
client_options (google.api_core.client_options.ClientOptions): Custom options for the
client. Only the `api_endpoint` and `client_cert_source` properties may be used
in this method.
Returns:
Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
client cert source to use.
Raises:
google.auth.exceptions.MutualTLSChannelError: If any errors happen.
"""
if client_options is None:
client_options = client_options_lib.ClientOptions()
use_client_cert = os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false")
use_mtls_endpoint = os.getenv("GOOGLE_API_USE_MTLS_ENDPOINT", "auto")
if use_client_cert not in ("true", "false"):
raise ValueError(
"Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
)
if use_mtls_endpoint not in ("auto", "never", "always"):
raise MutualTLSChannelError(
"Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
)
# Figure out the client cert source to use.
client_cert_source = None
if use_client_cert == "true":
if client_options.client_cert_source:
client_cert_source = client_options.client_cert_source
elif mtls.has_default_client_cert_source():
client_cert_source = mtls.default_client_cert_source()
# Figure out which api endpoint to use.
if client_options.api_endpoint is not None:
api_endpoint = client_options.api_endpoint
elif use_mtls_endpoint == "always" or (
use_mtls_endpoint == "auto" and client_cert_source
):
api_endpoint = cls.DEFAULT_MTLS_ENDPOINT
else:
api_endpoint = cls.DEFAULT_ENDPOINT
return api_endpoint, client_cert_source
def __init__(
self,
*,
credentials: Optional[ga_credentials.Credentials] = None,
transport: Optional[Union[str, DatastoreAdminTransport]] = None,
client_options: Optional[Union[client_options_lib.ClientOptions, dict]] = None,
client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
) -> None:
"""Instantiates the datastore admin client.
Args:
credentials (Optional[google.auth.credentials.Credentials]): The
authorization credentials to attach to requests. These
credentials identify the application to the service; if none
are specified, the client will attempt to ascertain the
credentials from the environment.
transport (Union[str, DatastoreAdminTransport]): The
transport to use. If set to None, a transport is chosen
automatically.
client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]): Custom options for the
client. It won't take effect if a ``transport`` instance is provided.
(1) The ``api_endpoint`` property can be used to override the
default endpoint provided by the client. GOOGLE_API_USE_MTLS_ENDPOINT
environment variable can also be used to override the endpoint:
"always" (always use the default mTLS endpoint), "never" (always
use the default regular endpoint) and "auto" (auto switch to the
default mTLS endpoint if client certificate is present, this is
the default value). However, the ``api_endpoint`` property takes
precedence if provided.
(2) If GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
is "true", then the ``client_cert_source`` property can be used
to provide client certificate for mutual TLS transport. If
not provided, the default SSL client certificate will be used if
present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
set, no client certificate will be used.
client_info (google.api_core.gapic_v1.client_info.ClientInfo):
The client info used to send a user-agent string along with
API requests. If ``None``, then default info will be used.
Generally, you only need to set this if you're developing
your own client library.
Raises:
google.auth.exceptions.MutualTLSChannelError: If mutual TLS transport
creation failed for any reason.
"""
if isinstance(client_options, dict):
client_options = client_options_lib.from_dict(client_options)
if client_options is None:
client_options = client_options_lib.ClientOptions()
client_options = cast(client_options_lib.ClientOptions, client_options)
api_endpoint, client_cert_source_func = self.get_mtls_endpoint_and_cert_source(
client_options
)
api_key_value = getattr(client_options, "api_key", None)
if api_key_value and credentials:
raise ValueError(
"client_options.api_key and credentials are mutually exclusive"
)
# Save or instantiate the transport.
# Ordinarily, we provide the transport, but allowing a custom transport
# instance provides an extensibility point for unusual situations.
if isinstance(transport, DatastoreAdminTransport):
# transport is a DatastoreAdminTransport instance.
if credentials or client_options.credentials_file or api_key_value:
raise ValueError(
"When providing a transport instance, "
"provide its credentials directly."
)
if client_options.scopes:
raise ValueError(
"When providing a transport instance, provide its scopes "
"directly."
)
self._transport = transport
else:
import google.auth._default # type: ignore
if api_key_value and hasattr(
google.auth._default, "get_api_key_credentials"
):
credentials = google.auth._default.get_api_key_credentials(
api_key_value
)
Transport = type(self).get_transport_class(transport)
self._transport = Transport(
credentials=credentials,
credentials_file=client_options.credentials_file,
host=api_endpoint,
scopes=client_options.scopes,
client_cert_source_for_mtls=client_cert_source_func,
quota_project_id=client_options.quota_project_id,
client_info=client_info,
always_use_jwt_access=True,
api_audience=client_options.api_audience,
)
def export_entities(
self,
request: Optional[Union[datastore_admin.ExportEntitiesRequest, dict]] = None,
*,
project_id: Optional[str] = None,
labels: Optional[MutableMapping[str, str]] = None,
entity_filter: Optional[datastore_admin.EntityFilter] = None,
output_url_prefix: Optional[str] = None,
retry: OptionalRetry = gapic_v1.method.DEFAULT,
timeout: Union[float, object] = gapic_v1.method.DEFAULT,
metadata: Sequence[Tuple[str, str]] = (),
) -> operation.Operation:
r"""Exports a copy of all or a subset of entities from
Google Cloud Datastore to another storage system, such
as Google Cloud Storage. Recent updates to entities may
not be reflected in the export. The export occurs in the
background and its progress can be monitored and managed
via the Operation resource that is created. The output
of an export may only be used once the associated
operation is done. If an export operation is cancelled
before completion it may leave partial data behind in
Google Cloud Storage.
.. code-block:: python
# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
# client as shown in:
# https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import datastore_admin_v1
def sample_export_entities():
# Create a client
client = datastore_admin_v1.DatastoreAdminClient()
# Initialize request argument(s)
request = datastore_admin_v1.ExportEntitiesRequest(
project_id="project_id_value",
output_url_prefix="output_url_prefix_value",
)
# Make the request
operation = client.export_entities(request=request)
print("Waiting for operation to complete...")
response = operation.result()
# Handle the response
print(response)
Args:
request (Union[google.cloud.datastore_admin_v1.types.ExportEntitiesRequest, dict]):
The request object. The request for
[google.datastore.admin.v1.DatastoreAdmin.ExportEntities][google.datastore.admin.v1.DatastoreAdmin.ExportEntities].
project_id (str):
Required. Project ID against which to
make the request.
This corresponds to the ``project_id`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
labels (MutableMapping[str, str]):
Client-assigned labels.
This corresponds to the ``labels`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
entity_filter (google.cloud.datastore_admin_v1.types.EntityFilter):
Description of what data from the
project is included in the export.
This corresponds to the ``entity_filter`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
output_url_prefix (str):
Required. Location for the export metadata and data
files.
The full resource URL of the external storage location.
Currently, only Google Cloud Storage is supported. So
output_url_prefix should be of the form:
``gs://BUCKET_NAME[/NAMESPACE_PATH]``, where
``BUCKET_NAME`` is the name of the Cloud Storage bucket
and ``NAMESPACE_PATH`` is an optional Cloud Storage
namespace path (this is not a Cloud Datastore
namespace). For more information about Cloud Storage
namespace paths, see `Object name
considerations <https://cloud.google.com/storage/docs/naming#object-considerations>`__.
The resulting files will be nested deeper than the
specified URL prefix. The final output URL will be
provided in the
[google.datastore.admin.v1.ExportEntitiesResponse.output_url][google.datastore.admin.v1.ExportEntitiesResponse.output_url]
field. That value should be used for subsequent
ImportEntities operations.
By nesting the data files deeper, the same Cloud Storage
bucket can be used in multiple ExportEntities operations
without conflict.
This corresponds to the ``output_url_prefix`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.api_core.operation.Operation:
An object representing a long-running operation.
The result type for the operation will be :class:`google.cloud.datastore_admin_v1.types.ExportEntitiesResponse` The response for
[google.datastore.admin.v1.DatastoreAdmin.ExportEntities][google.datastore.admin.v1.DatastoreAdmin.ExportEntities].
"""
# Create or coerce a protobuf request object.
# Quick check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any(
[project_id, labels, entity_filter, output_url_prefix]
)
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a datastore_admin.ExportEntitiesRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, datastore_admin.ExportEntitiesRequest):
request = datastore_admin.ExportEntitiesRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if project_id is not None:
request.project_id = project_id
if labels is not None:
request.labels = labels
if entity_filter is not None:
request.entity_filter = entity_filter
if output_url_prefix is not None:
request.output_url_prefix = output_url_prefix
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.export_entities]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata(
(("project_id", request.project_id),)
),
)
# Send the request.
response = rpc(
request,
retry=retry,
timeout=timeout,
metadata=metadata,
)
# Wrap the response in an operation future.
response = operation.from_gapic(
response,
self._transport.operations_client,
datastore_admin.ExportEntitiesResponse,
metadata_type=datastore_admin.ExportEntitiesMetadata,
)
# Done; return the response.
return response
def import_entities(
self,
request: Optional[Union[datastore_admin.ImportEntitiesRequest, dict]] = None,
*,
project_id: Optional[str] = None,
labels: Optional[MutableMapping[str, str]] = None,
input_url: Optional[str] = None,
entity_filter: Optional[datastore_admin.EntityFilter] = None,
retry: OptionalRetry = gapic_v1.method.DEFAULT,
timeout: Union[float, object] = gapic_v1.method.DEFAULT,
metadata: Sequence[Tuple[str, str]] = (),
) -> operation.Operation:
r"""Imports entities into Google Cloud Datastore.
Existing entities with the same key are overwritten. The
import occurs in the background and its progress can be
monitored and managed via the Operation resource that is
created. If an ImportEntities operation is cancelled, it
is possible that a subset of the data has already been
imported to Cloud Datastore.
.. code-block:: python
# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
# client as shown in:
# https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import datastore_admin_v1
def sample_import_entities():
# Create a client
client = datastore_admin_v1.DatastoreAdminClient()
# Initialize request argument(s)
request = datastore_admin_v1.ImportEntitiesRequest(
project_id="project_id_value",
input_url="input_url_value",
)
# Make the request
operation = client.import_entities(request=request)
print("Waiting for operation to complete...")
response = operation.result()
# Handle the response
print(response)
Args:
request (Union[google.cloud.datastore_admin_v1.types.ImportEntitiesRequest, dict]):
The request object. The request for
[google.datastore.admin.v1.DatastoreAdmin.ImportEntities][google.datastore.admin.v1.DatastoreAdmin.ImportEntities].
project_id (str):
Required. Project ID against which to
make the request.
This corresponds to the ``project_id`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
labels (MutableMapping[str, str]):
Client-assigned labels.
This corresponds to the ``labels`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
input_url (str):
Required. The full resource URL of the external storage
location. Currently, only Google Cloud Storage is
supported. So input_url should be of the form:
``gs://BUCKET_NAME[/NAMESPACE_PATH]/OVERALL_EXPORT_METADATA_FILE``,
where ``BUCKET_NAME`` is the name of the Cloud Storage
bucket, ``NAMESPACE_PATH`` is an optional Cloud Storage
namespace path (this is not a Cloud Datastore
namespace), and ``OVERALL_EXPORT_METADATA_FILE`` is the
metadata file written by the ExportEntities operation.
For more information about Cloud Storage namespace
paths, see `Object name
considerations <https://cloud.google.com/storage/docs/naming#object-considerations>`__.
For more information, see
[google.datastore.admin.v1.ExportEntitiesResponse.output_url][google.datastore.admin.v1.ExportEntitiesResponse.output_url].
This corresponds to the ``input_url`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
entity_filter (google.cloud.datastore_admin_v1.types.EntityFilter):
Optionally specify which kinds/namespaces are to be
imported. If provided, the list must be a subset of the
EntityFilter used in creating the export, otherwise a
FAILED_PRECONDITION error will be returned. If no filter
is specified then all entities from the export are
imported.
This corresponds to the ``entity_filter`` field
on the ``request`` instance; if ``request`` is provided, this
should not be set.
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.api_core.operation.Operation:
An object representing a long-running operation.
The result type for the operation will be :class:`google.protobuf.empty_pb2.Empty` A generic empty message that you can re-use to avoid defining duplicated
empty messages in your APIs. A typical example is to
use it as the request or the response type of an API
method. For instance:
service Foo {
rpc Bar(google.protobuf.Empty) returns
(google.protobuf.Empty);
}
"""
# Create or coerce a protobuf request object.
# Quick check: If we got a request object, we should *not* have
# gotten any keyword arguments that map to the request.
has_flattened_params = any([project_id, labels, input_url, entity_filter])
if request is not None and has_flattened_params:
raise ValueError(
"If the `request` argument is set, then none of "
"the individual field arguments should be set."
)
# Minor optimization to avoid making a copy if the user passes
# in a datastore_admin.ImportEntitiesRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, datastore_admin.ImportEntitiesRequest):
request = datastore_admin.ImportEntitiesRequest(request)
# If we have keyword arguments corresponding to fields on the
# request, apply these.
if project_id is not None:
request.project_id = project_id
if labels is not None:
request.labels = labels
if input_url is not None:
request.input_url = input_url
if entity_filter is not None:
request.entity_filter = entity_filter
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.import_entities]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata(
(("project_id", request.project_id),)
),
)
# Send the request.
response = rpc(
request,
retry=retry,
timeout=timeout,
metadata=metadata,
)
# Wrap the response in an operation future.
response = operation.from_gapic(
response,
self._transport.operations_client,
empty_pb2.Empty,
metadata_type=datastore_admin.ImportEntitiesMetadata,
)
# Done; return the response.
return response
def create_index(
self,
request: Optional[Union[datastore_admin.CreateIndexRequest, dict]] = None,
*,
retry: OptionalRetry = gapic_v1.method.DEFAULT,
timeout: Union[float, object] = gapic_v1.method.DEFAULT,
metadata: Sequence[Tuple[str, str]] = (),
) -> operation.Operation:
r"""Creates the specified index. A newly created index's initial
state is ``CREATING``. On completion of the returned
[google.longrunning.Operation][google.longrunning.Operation],
the state will be ``READY``. If the index already exists, the
call will return an ``ALREADY_EXISTS`` status.
During index creation, the process could result in an error, in
which case the index will move to the ``ERROR`` state. The
process can be recovered by fixing the data that caused the
error, removing the index with
[delete][google.datastore.admin.v1.DatastoreAdmin.DeleteIndex],
then re-creating the index with [create]
[google.datastore.admin.v1.DatastoreAdmin.CreateIndex].
Indexes with a single property cannot be created.
.. code-block:: python
# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
# client as shown in:
# https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import datastore_admin_v1
def sample_create_index():
# Create a client
client = datastore_admin_v1.DatastoreAdminClient()
# Initialize request argument(s)
request = datastore_admin_v1.CreateIndexRequest(
)
# Make the request
operation = client.create_index(request=request)
print("Waiting for operation to complete...")
response = operation.result()
# Handle the response
print(response)
Args:
request (Union[google.cloud.datastore_admin_v1.types.CreateIndexRequest, dict]):
The request object. The request for
[google.datastore.admin.v1.DatastoreAdmin.CreateIndex][google.datastore.admin.v1.DatastoreAdmin.CreateIndex].
retry (google.api_core.retry.Retry): Designation of what errors, if any,
should be retried.
timeout (float): The timeout for this request.
metadata (Sequence[Tuple[str, str]]): Strings which should be
sent along with the request as metadata.
Returns:
google.api_core.operation.Operation:
An object representing a long-running operation.
The result type for the operation will be
:class:`google.cloud.datastore_admin_v1.types.Index`
Datastore composite index definition.
"""
# Create or coerce a protobuf request object.
# Minor optimization to avoid making a copy if the user passes
# in a datastore_admin.CreateIndexRequest.
# There's no risk of modifying the input as we've already verified
# there are no flattened fields.
if not isinstance(request, datastore_admin.CreateIndexRequest):
request = datastore_admin.CreateIndexRequest(request)
# Wrap the RPC method; this adds retry and timeout information,
# and friendly error handling.
rpc = self._transport._wrapped_methods[self._transport.create_index]
# Certain fields should be provided within the metadata header;
# add these here.
metadata = tuple(metadata) + (
gapic_v1.routing_header.to_grpc_metadata(
(("project_id", request.project_id),)
),
)
# Send the request.
response = rpc(
request,
retry=retry,
timeout=timeout,
metadata=metadata,
)
# Wrap the response in an operation future.
response = operation.from_gapic(
response,
self._transport.operations_client,
index.Index,
metadata_type=datastore_admin.IndexOperationMetadata,
)
# Done; return the response.
return response
def delete_index(
self,
request: Optional[Union[datastore_admin.DeleteIndexRequest, dict]] = None,
*,
retry: OptionalRetry = gapic_v1.method.DEFAULT,
timeout: Union[float, object] = gapic_v1.method.DEFAULT,
metadata: Sequence[Tuple[str, str]] = (),
) -> operation.Operation:
r"""Deletes an existing index. An index can only be deleted if it is
in a ``READY`` or ``ERROR`` state. On successful execution of
the request, the index will be in a ``DELETING``
[state][google.datastore.admin.v1.Index.State]. And on
completion of the returned
[google.longrunning.Operation][google.longrunning.Operation],
the index will be removed.
During index deletion, the process could result in an error, in
which case the index will move to the ``ERROR`` state. The
process can be recovered by fixing the data that caused the
error, followed by calling
[delete][google.datastore.admin.v1.DatastoreAdmin.DeleteIndex]
again.
.. code-block:: python
# This snippet has been automatically generated and should be regarded as a
# code template only.
# It will require modifications to work:
# - It may require correct/in-range values for request initialization.
# - It may require specifying regional endpoints when creating the service
# client as shown in:
# https://googleapis.dev/python/google-api-core/latest/client_options.html
from google.cloud import datastore_admin_v1
def sample_delete_index():
# Create a client
client = datastore_admin_v1.DatastoreAdminClient()
# Initialize request argument(s)
request = datastore_admin_v1.DeleteIndexRequest(
)
# Make the request
operation = client.delete_index(request=request)
print("Waiting for operation to complete...")
response = operation.result()
# Handle the response
print(response)