# The MIT License (MIT)
# Copyright (c) 2021 Microsoft Corporation
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# copies or substantial portions of the Software.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# SOFTWARE.
"""Interact with databases in the Azure Cosmos DB SQL API service.
"""
from typing import Any, List, Dict, Union, cast, Optional
import warnings
from azure.core.async_paging import AsyncItemPaged
from azure.core.tracing.decorator_async import distributed_trace_async
from azure.core.tracing.decorator import distributed_trace
from ._cosmos_client_connection_async import CosmosClientConnection
from .._base import build_options as _build_options
from .container import ContainerProxy
from ..offer import Offer
from ..http_constants import StatusCodes
from ..exceptions import CosmosResourceNotFoundError
from .user import UserProxy
from ..documents import IndexingMode
__all__ = ("DatabaseProxy",)
# pylint: disable=protected-access
# pylint: disable=missing-client-constructor-parameter-credential,missing-client-constructor-parameter-kwargs
[docs]class DatabaseProxy(object):
"""An interface to interact with a specific database.
This class should not be instantiated directly. Instead use the
:func:`CosmosClient.get_database_client` method.
A database contains one or more containers, each of which can contain items,
stored procedures, triggers, and user-defined functions.
A database can also have associated users, each of which is configured with
a set of permissions for accessing certain containers, stored procedures,
triggers, user-defined functions, or items.
:ivar id: The ID (name) of the database.
An Azure Cosmos DB SQL API database has the following system-generated
properties. These properties are read-only:
* `_rid`: The resource ID.
* `_ts`: When the resource was last updated. The value is a timestamp.
* `_self`: The unique addressable URI for the resource.
* `_etag`: The resource etag required for optimistic concurrency control.
* `_colls`: The addressable path of the collections resource.
* `_users`: The addressable path of the users resource.
"""
def __init__(self, client_connection, id, properties=None): # pylint: disable=redefined-builtin
# type: (CosmosClientConnection, str, Dict[str, Any]) -> None
"""
:param ClientSession client_connection: Client from which this database was retrieved.
:param str id: ID (name) of the database.
"""
self.client_connection = client_connection
self.id = id
self.database_link = u"dbs/{}".format(self.id)
self._properties = properties
def __repr__(self):
# type () -> str
return "<DatabaseProxy [{}]>".format(self.database_link)[:1024]
@staticmethod
def _get_container_id(container_or_id):
# type: (Union[str, ContainerProxy, Dict[str, Any]]) -> str
if isinstance(container_or_id, str):
return container_or_id
try:
return cast("ContainerProxy", container_or_id).id
except AttributeError:
pass
return cast("Dict[str, str]", container_or_id)["id"]
def _get_container_link(self, container_or_id):
# type: (Union[str, ContainerProxy, Dict[str, Any]]) -> str
return u"{}/colls/{}".format(self.database_link, self._get_container_id(container_or_id))
def _get_user_link(self, user_or_id):
# type: (Union[UserProxy, str, Dict[str, Any]]) -> str
if isinstance(user_or_id, str):
return u"{}/users/{}".format(self.database_link, user_or_id)
try:
return cast("UserProxy", user_or_id).user_link
except AttributeError:
pass
return u"{}/users/{}".format(self.database_link, cast("Dict[str, str]", user_or_id)["id"])
async def _get_properties(self):
# type: () -> Dict[str, Any]
if self._properties is None:
self._properties = await self.read()
return self._properties
[docs] @distributed_trace_async
async def read(self, **kwargs):
# type: (Optional[bool], Any) -> Dict[str, Any]
"""Read the database properties.
:keyword str session_token: Token for use with Session consistency.
:keyword dict[str,str] initial_headers: Initial headers to be sent as part of the request.
:keyword Callable response_hook: A callable invoked with the response metadata.
:rtype: Dict[Str, Any]
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: If the given database couldn't be retrieved.
"""
# TODO this helper function should be extracted from CosmosClient
from .cosmos_client import CosmosClient
database_link = CosmosClient._get_database_link(self)
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
self._properties = await self.client_connection.ReadDatabase(
database_link, options=request_options, **kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, self._properties)
return cast('Dict[str, Any]', self._properties)
[docs] @distributed_trace_async
async def create_container(
self,
id, # type: str # pylint: disable=redefined-builtin
partition_key, # type: Any
indexing_policy=None, # type: Optional[Dict[str, Any]]
default_ttl=None, # type: Optional[int]
offer_throughput=None, # type: Optional[int]
unique_key_policy=None, # type: Optional[Dict[str, Any]]
conflict_resolution_policy=None, # type: Optional[Dict[str, Any]]
**kwargs # type: Any
):
# type: (...) -> ContainerProxy
"""Create a new container with the given ID (name).
If a container with the given ID already exists, a CosmosResourceExistsError is raised.
:param id: ID (name) of container to create.
:param partition_key: The partition key to use for the container.
:param indexing_policy: The indexing policy to apply to the container.
:param default_ttl: Default time to live (TTL) for items in the container. If unspecified, items do not expire.
:param offer_throughput: The provisioned throughput for this offer.
:param unique_key_policy: The unique key policy to apply to the container.
:param conflict_resolution_policy: The conflict resolution policy to apply to the container.
:keyword str session_token: Token for use with Session consistency.
:keyword dict[str,str] initial_headers: Initial headers to be sent as part of the request.
:keyword str etag: An ETag value, or the wildcard character (*). Used to check if the resource
has changed, and act according to the condition specified by the `match_condition` parameter.
:keyword ~azure.core.MatchConditions match_condition: The match condition to use upon the etag.
:keyword Callable response_hook: A callable invoked with the response metadata.
:keyword analytical_storage_ttl: Analytical store time to live (TTL) for items in the container. A value of
None leaves analytical storage off and a value of -1 turns analytical storage on with no TTL. Please
note that analytical storage can only be enabled on Synapse Link enabled accounts.
:returns: A `ContainerProxy` instance representing the new container.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: The container creation failed.
:rtype: ~azure.cosmos.ContainerProxy
.. admonition:: Example:
.. literalinclude:: ../samples/examples_async.py
:start-after: [START create_container]
:end-before: [END create_container]
:language: python
:dedent: 0
:caption: Create a container with default settings:
:name: create_container
.. literalinclude:: ../samples/examples_async.py
:start-after: [START create_container_with_settings]
:end-before: [END create_container_with_settings]
:language: python
:dedent: 0
:caption: Create a container with specific settings; in this case, a custom partition key:
:name: create_container_with_settings
"""
definition = dict(id=id) # type: Dict[str, Any]
if partition_key is not None:
definition["partitionKey"] = partition_key
if indexing_policy is not None:
if indexing_policy.get("indexingMode") is IndexingMode.Lazy:
warnings.warn(
"Lazy indexing mode has been deprecated. Mode will be set to consistent indexing by the backend.",
DeprecationWarning
)
definition["indexingPolicy"] = indexing_policy
if default_ttl is not None:
definition["defaultTtl"] = default_ttl
if unique_key_policy is not None:
definition["uniqueKeyPolicy"] = unique_key_policy
if conflict_resolution_policy is not None:
definition["conflictResolutionPolicy"] = conflict_resolution_policy
analytical_storage_ttl = kwargs.pop("analytical_storage_ttl", None)
if analytical_storage_ttl is not None:
definition["analyticalStorageTtl"] = analytical_storage_ttl
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
if offer_throughput is not None:
request_options["offerThroughput"] = offer_throughput
data = await self.client_connection.CreateContainer(
database_link=self.database_link, collection=definition, options=request_options, **kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, data)
return ContainerProxy(self.client_connection, self.database_link, data["id"], properties=data)
[docs] @distributed_trace_async
async def create_container_if_not_exists(
self,
id, # type: str # pylint: disable=redefined-builtin
partition_key, # type: Any
indexing_policy=None, # type: Optional[Dict[str, Any]]
default_ttl=None, # type: Optional[int]
offer_throughput=None, # type: Optional[int]
unique_key_policy=None, # type: Optional[Dict[str, Any]]
conflict_resolution_policy=None, # type: Optional[Dict[str, Any]]
**kwargs # type: Any
):
# type: (...) -> ContainerProxy
"""Create a container if it does not exist already.
If the container already exists, the existing settings are returned.
Note: it does not check or update the existing container settings or offer throughput
if they differ from what was passed into the method.
:param id: ID (name) of container to read or create.
:param partition_key: The partition key to use for the container.
:param indexing_policy: The indexing policy to apply to the container.
:param default_ttl: Default time to live (TTL) for items in the container. If unspecified, items do not expire.
:param offer_throughput: The provisioned throughput for this offer.
:param unique_key_policy: The unique key policy to apply to the container.
:param conflict_resolution_policy: The conflict resolution policy to apply to the container.
:keyword str session_token: Token for use with Session consistency.
:keyword dict[str,str] initial_headers: Initial headers to be sent as part of the request.
:keyword str etag: An ETag value, or the wildcard character (*). Used to check if the resource
has changed, and act according to the condition specified by the `match_condition` parameter.
:keyword ~azure.core.MatchConditions match_condition: The match condition to use upon the etag.
:keyword Callable response_hook: A callable invoked with the response metadata.
:keyword analytical_storage_ttl: Analytical store time to live (TTL) for items in the container. A value of
None leaves analytical storage off and a value of -1 turns analytical storage on with no TTL. Please
note that analytical storage can only be enabled on Synapse Link enabled accounts.
:returns: A `ContainerProxy` instance representing the container.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: The container read or creation failed.
:rtype: ~azure.cosmos.ContainerProxy
"""
analytical_storage_ttl = kwargs.pop("analytical_storage_ttl", None)
try:
container_proxy = self.get_container_client(id)
await container_proxy.read(**kwargs)
return container_proxy
except CosmosResourceNotFoundError:
return await self.create_container(
id=id,
partition_key=partition_key,
indexing_policy=indexing_policy,
default_ttl=default_ttl,
offer_throughput=offer_throughput,
unique_key_policy=unique_key_policy,
conflict_resolution_policy=conflict_resolution_policy,
analytical_storage_ttl=analytical_storage_ttl
)
[docs] def get_container_client(self, container):
# type: (Union[str, ContainerProxy, Dict[str, Any]]) -> ContainerProxy
"""Get a `ContainerProxy` for a container with specified ID (name).
:param container: The ID (name) of the container to be retrieved.
:returns: A `ContainerProxy` instance representing the container.
:rtype: ~azure.cosmos.ContainerProxy
.. admonition:: Example:
.. literalinclude:: ../samples/examples_async.py
:start-after: [START get_container]
:end-before: [END get_container]
:language: python
:dedent: 0
:caption: Get an existing container, handling a failure if encountered:
:name: get_container
"""
try:
id_value = container.id
except AttributeError:
try:
id_value = container['id']
except TypeError:
id_value = container
return ContainerProxy(self.client_connection, self.database_link, id_value)
[docs] @distributed_trace
def list_containers(
self,
max_item_count=None,
**kwargs
):
# type: (Optional[int], Optional[bool], Any) -> AsyncItemPaged[Dict[str, Any]]
"""List the containers in the database.
:param max_item_count: Max number of items to be returned in the enumeration operation.
:keyword str session_token: Token for use with Session consistency.
:keyword dict[str,str] initial_headers: Initial headers to be sent as part of the request.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: An AsyncItemPaged of container properties (dicts).
:rtype: AsyncItemPaged[dict[str, Any]]
.. admonition:: Example:
.. literalinclude:: ../samples/examples_async.py
:start-after: [START list_containers]
:end-before: [END list_containers]
:language: python
:dedent: 0
:caption: List all containers in the database:
:name: list_containers
"""
feed_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
if max_item_count is not None:
feed_options["maxItemCount"] = max_item_count
result = self.client_connection.ReadContainers(
database_link=self.database_link, options=feed_options, **kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, result)
return result
[docs] @distributed_trace
def query_containers(
self,
query=None, # type: Optional[str]
parameters=None, # type: Optional[List[Dict[str, Any]]]
max_item_count=None, # type: Optional[int]
**kwargs # type: Any
):
# type: (...) -> AsyncItemPaged[Dict[str, Any]]
"""List the properties for containers in the current database.
:param query: The Azure Cosmos DB SQL query to execute.
:param parameters: Optional array of parameters to the query.
Each parameter is a dict() with 'name' and 'value' keys.
Ignored if no query is provided.
:param max_item_count: Max number of items to be returned in the enumeration operation.
:keyword str session_token: Token for use with Session consistency.
:keyword dict[str,str] initial_headers: Initial headers to be sent as part of the request.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: An AsyncItemPaged of container properties (dicts).
:rtype: AsyncItemPaged[dict[str, Any]]
"""
feed_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
if max_item_count is not None:
feed_options["maxItemCount"] = max_item_count
result = self.client_connection.QueryContainers(
database_link=self.database_link,
query=query if parameters is None else dict(query=query, parameters=parameters),
options=feed_options,
**kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, result)
return result
[docs] @distributed_trace_async
async def replace_container(
self,
container, # type: Union[str, ContainerProxy, Dict[str, Any]]
partition_key, # type: Any
indexing_policy=None, # type: Optional[Dict[str, Any]]
default_ttl=None, # type: Optional[int]
conflict_resolution_policy=None, # type: Optional[Dict[str, Any]]
**kwargs # type: Any
):
# type: (...) -> ContainerProxy
"""Reset the properties of the container.
Property changes are persisted immediately. Any properties not specified
will be reset to their default values.
:param container: The ID (name), dict representing the properties or
:class:`ContainerProxy` instance of the container to be replaced.
:param partition_key: The partition key to use for the container.
:param indexing_policy: The indexing policy to apply to the container.
:param default_ttl: Default time to live (TTL) for items in the container.
If unspecified, items do not expire.
:param conflict_resolution_policy: The conflict resolution policy to apply to the container.
:keyword str session_token: Token for use with Session consistency.
:keyword str etag: An ETag value, or the wildcard character (*). Used to check if the resource
has changed, and act according to the condition specified by the `match_condition` parameter.
:keyword ~azure.core.MatchConditions match_condition: The match condition to use upon the etag.
:keyword dict[str,str] initial_headers: Initial headers to be sent as part of the request.
:keyword Callable response_hook: A callable invoked with the response metadata.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: Raised if the container couldn't be replaced.
This includes if the container with given id does not exist.
:returns: A `ContainerProxy` instance representing the container after replace completed.
:rtype: ~azure.cosmos.ContainerProxy
.. admonition:: Example:
.. literalinclude:: ../samples/examples_async.py
:start-after: [START reset_container_properties]
:end-before: [END reset_container_properties]
:language: python
:dedent: 0
:caption: Reset the TTL property on a container, and display the updated properties:
:name: reset_container_properties
"""
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
container_id = self._get_container_id(container)
container_link = self._get_container_link(container_id)
parameters = {
key: value
for key, value in {
"id": container_id,
"partitionKey": partition_key,
"indexingPolicy": indexing_policy,
"defaultTtl": default_ttl,
"conflictResolutionPolicy": conflict_resolution_policy,
}.items()
if value is not None
}
container_properties = await self.client_connection.ReplaceContainer(
container_link, collection=parameters, options=request_options, **kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, container_properties)
return ContainerProxy(
self.client_connection, self.database_link, container_properties["id"], properties=container_properties
)
[docs] @distributed_trace_async
async def delete_container(
self,
container, # type: Union[str, ContainerProxy, Dict[str, Any]]
**kwargs # type: Any
):
# type: (...) -> None
"""Delete a container.
:param container: The ID (name) of the container to delete. You can either
pass in the ID of the container to delete, a :class:`ContainerProxy` instance or
a dict representing the properties of the container.
:keyword str session_token: Token for use with Session consistency.
:keyword dict[str,str] initial_headers: Initial headers to be sent as part of the request.
:keyword str etag: An ETag value, or the wildcard character (*). Used to check if the resource
has changed, and act according to the condition specified by the `match_condition` parameter.
:keyword ~azure.core.MatchConditions match_condition: The match condition to use upon the etag.
:keyword Callable response_hook: A callable invoked with the response metadata.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: If the container couldn't be deleted.
:rtype: None
"""
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
collection_link = self._get_container_link(container)
result = await self.client_connection.DeleteContainer(collection_link, options=request_options, **kwargs)
if response_hook:
response_hook(self.client_connection.last_response_headers, result)
[docs] @distributed_trace_async
async def create_user(self, body, **kwargs):
# type: (Dict[str, Any], Any) -> UserProxy
"""Create a new user in the container.
To update or replace an existing user, use the
:func:`ContainerProxy.upsert_user` method.
:param body: A dict-like object with an `id` key and value representing the user to be created.
The user ID must be unique within the database, and consist of no more than 255 characters.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: A `UserProxy` instance representing the new user.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: If the given user couldn't be created.
:rtype: ~azure.cosmos.UserProxy
.. admonition:: Example:
.. literalinclude:: ../samples/examples_async.py
:start-after: [START create_user]
:end-before: [END create_user]
:language: python
:dedent: 0
:caption: Create a database user:
:name: create_user
"""
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
user = await self.client_connection.CreateUser(
database_link=self.database_link, user=body, options=request_options, **kwargs)
if response_hook:
response_hook(self.client_connection.last_response_headers, user)
return UserProxy(
client_connection=self.client_connection, id=user["id"], database_link=self.database_link, properties=user
)
[docs] def get_user_client(self, user_id):
# type: (str) -> UserProxy
"""Get a `UserProxy` for a user with specified ID.
:param user: The ID (name) of the user to be retrieved.
:returns: A `UserProxy` instance representing the retrieved user.
:rtype: ~azure.cosmos.UserProxy
"""
return UserProxy(client_connection=self.client_connection, id=user_id, database_link=self.database_link)
[docs] @distributed_trace
def list_users(self, max_item_count=None, **kwargs):
# type: (Optional[int], Any) -> AsyncItemPaged[Dict[str, Any]]
"""List all the users in the container.
:param max_item_count: Max number of users to be returned in the enumeration operation.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: An AsyncItemPaged of user properties (dicts).
:rtype: AsyncItemPaged[dict[str, Any]]
"""
feed_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
if max_item_count is not None:
feed_options["maxItemCount"] = max_item_count
result = self.client_connection.ReadUsers(
database_link=self.database_link, options=feed_options, **kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, result)
return result
[docs] @distributed_trace
def query_users(
self,
query, # type: str
parameters=None, # type: Optional[List[Dict[str, Any]]]
max_item_count=None, # type: Optional[int]
**kwargs # type: Any
):
# type: (...) -> AsyncItemPaged[Dict[str, Any]]
"""Return all users matching the given `query`.
:param query: The Azure Cosmos DB SQL query to execute.
:param parameters: Optional array of parameters to the query.
Each parameter is a dict() with 'name' and 'value' keys.
Ignored if no query is provided.
:param max_item_count: Max number of users to be returned in the enumeration operation.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: An AsyncItemPaged of user properties (dicts).
:rtype: AsyncItemPaged[str, Any]
"""
feed_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
if max_item_count is not None:
feed_options["maxItemCount"] = max_item_count
result = self.client_connection.QueryUsers(
database_link=self.database_link,
query=query if parameters is None else dict(query=query, parameters=parameters),
options=feed_options,
**kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, result)
return result
[docs] @distributed_trace_async
async def upsert_user(self, body, **kwargs):
# type: (Dict[str, Any], Any) -> UserProxy
"""Insert or update the specified user.
If the user already exists in the container, it is replaced. If the user
does not already exist, it is inserted.
:param body: A dict-like object representing the user to update or insert.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: A `UserProxy` instance representing the upserted user.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: If the given user could not be upserted.
:rtype: ~azure.cosmos.UserProxy
"""
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
user = await self.client_connection.UpsertUser(
database_link=self.database_link, user=body, options=request_options, **kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, user)
return UserProxy(
client_connection=self.client_connection, id=user["id"], database_link=self.database_link, properties=user
)
[docs] @distributed_trace_async
async def replace_user(
self,
user, # type: Union[str, UserProxy, Dict[str, Any]]
body, # type: Dict[str, Any]
**kwargs # type: Any
):
# type: (...) -> UserProxy
"""Replaces the specified user if it exists in the container.
:param user: The ID (name), dict representing the properties or :class:`UserProxy`
instance of the user to be replaced.
:param body: A dict-like object representing the user to replace.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: A `UserProxy` instance representing the user after replace went through.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError:
If the replace failed or the user with given ID does not exist.
:rtype: ~azure.cosmos.UserProxy
"""
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
replaced_user = await self.client_connection.ReplaceUser(
user_link=self._get_user_link(user), user=body, options=request_options, **kwargs
) # type: Dict[str, str]
if response_hook:
response_hook(self.client_connection.last_response_headers, replaced_user)
return UserProxy(
client_connection=self.client_connection,
id=replaced_user["id"],
database_link=self.database_link,
properties=replaced_user
)
[docs] @distributed_trace_async
async def delete_user(self, user, **kwargs):
# type: (Union[str, UserProxy, Dict[str, Any]], Any) -> None
"""Delete the specified user from the container.
:param user: The ID (name), dict representing the properties or :class:`UserProxy`
instance of the user to be deleted.
:keyword Callable response_hook: A callable invoked with the response metadata.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError: The user wasn't deleted successfully.
:raises ~azure.cosmos.exceptions.CosmosResourceNotFoundError: The user does not exist in the container.
:rtype: None
"""
request_options = _build_options(kwargs)
response_hook = kwargs.pop('response_hook', None)
result = await self.client_connection.DeleteUser(
user_link=self._get_user_link(user), options=request_options, **kwargs
)
if response_hook:
response_hook(self.client_connection.last_response_headers, result)
[docs] @distributed_trace_async
async def read_offer(self, **kwargs):
# type: (Any) -> Offer
"""Read the Offer object for this database.
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: Offer for the database.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError:
If no offer exists for the database or if the offer could not be retrieved.
:rtype: ~azure.cosmos.Offer
"""
response_hook = kwargs.pop('response_hook', None)
properties = await self._get_properties()
link = properties["_self"]
query_spec = {
"query": "SELECT * FROM root r WHERE r.resource=@link",
"parameters": [{"name": "@link", "value": link}],
}
offers = [offer async for offer in self.client_connection.QueryOffers(query_spec, **kwargs)]
if len(offers) == 0:
raise CosmosResourceNotFoundError(
status_code=StatusCodes.NOT_FOUND,
message="Could not find Offer for database " + self.database_link)
if response_hook:
response_hook(self.client_connection.last_response_headers, offers)
return Offer(offer_throughput=offers[0]["content"]["offerThroughput"], properties=offers[0])
[docs] @distributed_trace_async
async def replace_throughput(self, throughput, **kwargs):
# type: (Optional[int], Any) -> Offer
"""Replace the database-level throughput.
:param throughput: The throughput to be set (an integer).
:keyword Callable response_hook: A callable invoked with the response metadata.
:returns: Offer for the database, updated with new throughput.
:raises ~azure.cosmos.exceptions.CosmosHttpResponseError:
If no offer exists for the database or if the offer could not be updated.
:rtype: ~azure.cosmos.Offer
"""
response_hook = kwargs.pop('response_hook', None)
properties = await self._get_properties()
link = properties["_self"]
query_spec = {
"query": "SELECT * FROM root r WHERE r.resource=@link",
"parameters": [{"name": "@link", "value": link}],
}
offers = [offer async for offer in self.client_connection.QueryOffers(query_spec, **kwargs)]
if len(offers) == 0:
raise CosmosResourceNotFoundError(
status_code=StatusCodes.NOT_FOUND,
message="Could not find Offer for database " + self.database_link)
new_offer = offers[0].copy()
new_offer["content"]["offerThroughput"] = throughput
data = await self.client_connection.ReplaceOffer(offer_link=offers[0]["_self"], offer=offers[0], **kwargs)
if response_hook:
response_hook(self.client_connection.last_response_headers, data)
return Offer(offer_throughput=data["content"]["offerThroughput"], properties=data)