Class Client (2.2.0)

Client(project=None, credentials=None, read_only=False, admin=False, client_info=<google.api_core.gapic_v1.client_info.ClientInfo object>, client_options=None, admin_client_options=None, channel=None)

Client for interacting with Google Cloud Bigtable API.

Note: Since the Cloud Bigtable API requires the gRPC transport, no _http argument is accepted by this class.

Parameters

Name	Description
`project`	`str or unicode` (Optional) The ID of the project which owns the instances, tables and data. If not provided, will attempt to determine from the environment.
`credentials`	`google.auth.credentials.Credentials` (Optional) The OAuth2 Credentials to use for this client. If not passed, falls back to the default inferred from the environment.
`read_only`	`bool` (Optional) Boolean indicating if the data scope should be for reading only (or for writing as well). Defaults to :data:`False`.
`admin`	`bool` (Optional) Boolean indicating if the client will be used to interact with the Instance Admin or Table Admin APIs. This requires the :const:`ADMIN_SCOPE`. Defaults to :data:`False`. :type: client_info: `google.api_core.gapic_v1.client_info.ClientInfo`
`client_options`	`google.api_core.client_options.ClientOptions or dict` (Optional) Client options used to set user options on the client. API Endpoint should be set through client_options.
`admin_client_options`	`google.api_core.client_options.ClientOptions or dict` (Optional) Client options used to set user options on the client. API Endpoint for admin operations should be set through admin_client_options.

Properties

instance_admin_client

Getter for the gRPC stub used for the Table Admin API.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_instance_admin_client] :end-before: [END bigtable_api_instance_admin_client] :dedent: 4

Exceptions

Type	Description
`ValueErro

Returns

Type	Description
`.bigtable_admin_pb2.BigtableInstanceAdmin`	A BigtableInstanceAdmin instance.

project_path

Project name to be used with Instance Admin API.

Note: This property will not change if project does not, but the return value is not cached.

.. literalinclude:: snippets.py :start-after: [START bigtable_api_project_path] :end-before: [END bigtable_api_project_path] :dedent: 4

The project name is of the form

`"projects/{project}"`

Returns

Type	Description
`str`	Return a fully-qualified project string.

table_admin_client

Getter for the gRPC stub used for the Table Admin API.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_table_admin_client] :end-before: [END bigtable_api_table_admin_client] :dedent: 4

Exceptions

Type	Description
`ValueErro

Returns

Type	Description
`.bigtable_admin_pb2.BigtableTableAdmin`	A BigtableTableAdmin instance.

table_data_client

Getter for the gRPC stub used for the Table Admin API.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_table_data_client] :end-before: [END bigtable_api_table_data_client] :dedent: 4

Returns

Type	Description
`.bigtable_v2.BigtableClient`	A BigtableClient object.

Methods

instance

instance(instance_id, display_name=None, instance_type=None, labels=None)

Factory to create a instance associated with this client.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_create_prod_instance] :end-before: [END bigtable_api_create_prod_instance] :dedent: 4

Parameters

Name	Description
`instance_id`	`str` The ID of the instance.
`display_name`	`str` (Optional) The display name for the instance in the Cloud Console UI. (Must be between 4 and 30 characters.) If this value is not set in the constructor, will fall back to the instance ID.
`instance_type`	`int` (Optional) The type of the instance. Possible values are represented by the following constants: :data:`google.cloud.bigtable.instance.InstanceType.PRODUCTION`. :data:`google.cloud.bigtable.instance.InstanceType.DEVELOPMENT`, Defaults to :data:`google.cloud.bigtable.instance.InstanceType.UNSPECIFIED`.
`labels`	`dict` (Optional) Labels are a flexible and lightweight mechanism for organizing cloud resources into groups that reflect a customer's organizational needs and deployment strategies. They can be used to filter resources and aggregate metrics. Label keys must be between 1 and 63 characters long. Maximum 64 labels can be associated with a given resource. Label values must be between 0 and 63 characters long. Keys and values must both be under 128 bytes.

Returns

Type	Description
`Instance`	an instance owned by this client.

list_clusters

list_clusters()

List the clusters in the project.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_list_clusters_in_project] :end-before: [END bigtable_api_list_clusters_in_project] :dedent: 4

Returns

Type	Description
`tuple`	(clusters, failed_locations), where 'clusters' is list of Cluster, and 'failed_locations' is a list of strings representing locations which could not be resolved.

list_instances

list_instances()

List instances owned by the project.

For example:

.. literalinclude:: snippets.py :start-after: [START bigtable_api_list_instances] :end-before: [END bigtable_api_list_instances] :dedent: 4

Returns

Type	Description
`tuple`	(instances, failed_locations), where 'instances' is list of Instance, and 'failed_locations' is a list of locations which could not be resolved.