Class MigrationServiceClient (0.4.2)

MigrationServiceClient(*, credentials: Optional[google.auth.credentials.Credentials] = None, transport: Optional[Union[str, google.cloud.bigquery_migration_v2.services.migration_service.transports.base.MigrationServiceTransport]] = None, client_options: Optional[google.api_core.client_options.ClientOptions] = None, client_info: google.api_core.gapic_v1.client_info.ClientInfo = <google.api_core.gapic_v1.client_info.ClientInfo object>)

Service to handle EDW migrations.

Inheritance

builtins.object > MigrationServiceClient

Properties

transport

Returns the transport used by the client instance.

Returns

Type	Description
MigrationServiceTransport	The transport used by the client instance.

Methods

MigrationServiceClient

MigrationServiceClient(*, credentials: Optional[google.auth.credentials.Credentials] = None, transport: Optional[Union[str, google.cloud.bigquery_migration_v2.services.migration_service.transports.base.MigrationServiceTransport]] = None, client_options: Optional[google.api_core.client_options.ClientOptions] = None, client_info: google.api_core.gapic_v1.client_info.ClientInfo = <google.api_core.gapic_v1.client_info.ClientInfo object>)

Instantiates the migration service client.

Parameters

Name	Description
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, MigrationServiceTransport]` The transport to use. If set to None, a transport is chosen automatically.
client_options	`google.api_core.client_options.ClientOptions` 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.

Exceptions

Type	Description
google.auth.exceptions.MutualTLSChannelError	If mutual TLS transport creation failed for any reason.

exit

__exit__(type, value, traceback)

Releases underlying transport's resources.

.. warning:: ONLY use as a context manager if the transport is NOT shared with other clients! Exiting the with block will CLOSE the transport and may cause errors in other clients!

common_billing_account_path

common_billing_account_path(billing_account: str)

Returns a fully-qualified billing_account string.

common_folder_path

common_folder_path(folder: str)

Returns a fully-qualified folder string.

common_location_path

common_location_path(project: str, location: str)

Returns a fully-qualified location string.

common_organization_path

common_organization_path(organization: str)

Returns a fully-qualified organization string.

common_project_path

common_project_path(project: str)

Returns a fully-qualified project string.

create_migration_workflow

create_migration_workflow(request: Optional[Union[google.cloud.bigquery_migration_v2.types.migration_service.CreateMigrationWorkflowRequest, dict]] = None, *, parent: Optional[str] = None, migration_workflow: Optional[google.cloud.bigquery_migration_v2.types.migration_entities.MigrationWorkflow] = None, retry: Union[google.api_core.retry.Retry, google.api_core.gapic_v1.method._MethodDefault] = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Creates a migration workflow.

from google.cloud import bigquery_migration_v2

def sample_create_migration_workflow():
    # Create a client
    client = bigquery_migration_v2.MigrationServiceClient()

    # Initialize request argument(s)
    request = bigquery_migration_v2.CreateMigrationWorkflowRequest(
        parent="parent_value",
    )

    # Make the request
    response = client.create_migration_workflow(request=request)

    # Handle the response
    print(response)

Parameters

Name	Description
request	`Union[google.cloud.bigquery_migration_v2.types.CreateMigrationWorkflowRequest, dict]` The request object. Request to create a migration workflow resource.
parent	`str` Required. The name of the project to which this migration workflow belongs. Example: `projects/foo/locations/bar` This corresponds to the `parent` field on the `request` instance; if `request` is provided, this should not be set.
migration_workflow	`google.cloud.bigquery_migration_v2.types.MigrationWorkflow` Required. The migration workflow to create. This corresponds to the `migration_workflow` 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

Type	Description
google.cloud.bigquery_migration_v2.types.MigrationWorkflow	A migration workflow which specifies what needs to be done for an EDW migration.

delete_migration_workflow

delete_migration_workflow(request: Optional[Union[google.cloud.bigquery_migration_v2.types.migration_service.DeleteMigrationWorkflowRequest, dict]] = None, *, name: Optional[str] = None, retry: Union[google.api_core.retry.Retry, google.api_core.gapic_v1.method._MethodDefault] = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Deletes a migration workflow by name.

from google.cloud import bigquery_migration_v2

def sample_delete_migration_workflow():
    # Create a client
    client = bigquery_migration_v2.MigrationServiceClient()

    # Initialize request argument(s)
    request = bigquery_migration_v2.DeleteMigrationWorkflowRequest(
        name="name_value",
    )

    # Make the request
    client.delete_migration_workflow(request=request)

Parameters

Name	Description
request	`Union[google.cloud.bigquery_migration_v2.types.DeleteMigrationWorkflowRequest, dict]` The request object. A request to delete a previously created migration workflow.
name	`str` Required. The unique identifier for the migration workflow. Example: `projects/123/locations/us/workflows/1234` This corresponds to the `name` 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.

from_service_account_file

from_service_account_file(filename: str, *args, **kwargs)

Creates an instance of this client using the provided credentials file.

Parameter

Name	Description
filename	`str` The path to the service account private key json file.

Returns

Type	Description
MigrationServiceClient	The constructed client.

from_service_account_info

from_service_account_info(info: dict, *args, **kwargs)

Creates an instance of this client using the provided credentials info.

Parameter

Name	Description
info	`dict` The service account private key info.

Returns

Type	Description
MigrationServiceClient	The constructed client.

from_service_account_json

from_service_account_json(filename: str, *args, **kwargs)

Creates an instance of this client using the provided credentials file.

Parameter

Name	Description
filename	`str` The path to the service account private key json file.

Returns

Type	Description
MigrationServiceClient	The constructed client.

get_migration_subtask

get_migration_subtask(request: Optional[Union[google.cloud.bigquery_migration_v2.types.migration_service.GetMigrationSubtaskRequest, dict]] = None, *, name: Optional[str] = None, retry: Union[google.api_core.retry.Retry, google.api_core.gapic_v1.method._MethodDefault] = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Gets a previously created migration subtask.

from google.cloud import bigquery_migration_v2

def sample_get_migration_subtask():
    # Create a client
    client = bigquery_migration_v2.MigrationServiceClient()

    # Initialize request argument(s)
    request = bigquery_migration_v2.GetMigrationSubtaskRequest(
        name="name_value",
    )

    # Make the request
    response = client.get_migration_subtask(request=request)

    # Handle the response
    print(response)

Parameters

Name	Description
request	`Union[google.cloud.bigquery_migration_v2.types.GetMigrationSubtaskRequest, dict]` The request object. A request to get a previously created migration subtasks.
name	`str` Required. The unique identifier for the migration subtask. Example: `projects/123/locations/us/workflows/1234/subtasks/543` This corresponds to the `name` 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

Type	Description
google.cloud.bigquery_migration_v2.types.MigrationSubtask	A subtask for a migration which carries details about the configuration of the subtask. The content of the details should not matter to the end user, but is a contract between the subtask creator and subtask worker.

get_migration_workflow

get_migration_workflow(request: Optional[Union[google.cloud.bigquery_migration_v2.types.migration_service.GetMigrationWorkflowRequest, dict]] = None, *, name: Optional[str] = None, retry: Union[google.api_core.retry.Retry, google.api_core.gapic_v1.method._MethodDefault] = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Gets a previously created migration workflow.

from google.cloud import bigquery_migration_v2

def sample_get_migration_workflow():
    # Create a client
    client = bigquery_migration_v2.MigrationServiceClient()

    # Initialize request argument(s)
    request = bigquery_migration_v2.GetMigrationWorkflowRequest(
        name="name_value",
    )

    # Make the request
    response = client.get_migration_workflow(request=request)

    # Handle the response
    print(response)

Parameters

Name	Description
request	`Union[google.cloud.bigquery_migration_v2.types.GetMigrationWorkflowRequest, dict]` The request object. A request to get a previously created migration workflow.
name	`str` Required. The unique identifier for the migration workflow. Example: `projects/123/locations/us/workflows/1234` This corresponds to the `name` 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

Type	Description
google.cloud.bigquery_migration_v2.types.MigrationWorkflow	A migration workflow which specifies what needs to be done for an EDW migration.

get_mtls_endpoint_and_cert_source

get_mtls_endpoint_and_cert_source(
    client_options: Optional[google.api_core.client_options.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.

Parameter

Name	Description
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.

Exceptions

Type	Description
google.auth.exceptions.MutualTLSChannelError	If any errors happen.

Returns

Type	Description
Tuple[str, Callable[[], Tuple[bytes, bytes]]]	returns the API endpoint and the client cert source to use.

list_migration_subtasks

list_migration_subtasks(request: Optional[Union[google.cloud.bigquery_migration_v2.types.migration_service.ListMigrationSubtasksRequest, dict]] = None, *, parent: Optional[str] = None, retry: Union[google.api_core.retry.Retry, google.api_core.gapic_v1.method._MethodDefault] = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Lists previously created migration subtasks.

from google.cloud import bigquery_migration_v2

def sample_list_migration_subtasks():
    # Create a client
    client = bigquery_migration_v2.MigrationServiceClient()

    # Initialize request argument(s)
    request = bigquery_migration_v2.ListMigrationSubtasksRequest(
        parent="parent_value",
    )

    # Make the request
    page_result = client.list_migration_subtasks(request=request)

    # Handle the response
    for response in page_result:
        print(response)

Parameters

Name	Description
request	`Union[google.cloud.bigquery_migration_v2.types.ListMigrationSubtasksRequest, dict]` The request object. A request to list previously created migration subtasks.
parent	`str` Required. The migration task of the subtasks to list. Example: `projects/123/locations/us/workflows/1234` This corresponds to the `parent` 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

Type	Description
google.cloud.bigquery_migration_v2.services.migration_service.pagers.ListMigrationSubtasksPager	Response object for a ListMigrationSubtasks call. Iterating over this object will yield results and resolve additional pages automatically.

list_migration_workflows

list_migration_workflows(request: Optional[Union[google.cloud.bigquery_migration_v2.types.migration_service.ListMigrationWorkflowsRequest, dict]] = None, *, parent: Optional[str] = None, retry: Union[google.api_core.retry.Retry, google.api_core.gapic_v1.method._MethodDefault] = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Lists previously created migration workflow.

from google.cloud import bigquery_migration_v2

def sample_list_migration_workflows():
    # Create a client
    client = bigquery_migration_v2.MigrationServiceClient()

    # Initialize request argument(s)
    request = bigquery_migration_v2.ListMigrationWorkflowsRequest(
        parent="parent_value",
    )

    # Make the request
    page_result = client.list_migration_workflows(request=request)

    # Handle the response
    for response in page_result:
        print(response)

Parameters

Name	Description
request	`Union[google.cloud.bigquery_migration_v2.types.ListMigrationWorkflowsRequest, dict]` The request object. A request to list previously created migration workflows.
parent	`str` Required. The project and location of the migration workflows to list. Example: `projects/123/locations/us` This corresponds to the `parent` 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

Type	Description
google.cloud.bigquery_migration_v2.services.migration_service.pagers.ListMigrationWorkflowsPager	Response object for a ListMigrationWorkflows call. Iterating over this object will yield results and resolve additional pages automatically.

migration_subtask_path

migration_subtask_path(project: str, location: str, workflow: str, subtask: str)

Returns a fully-qualified migration_subtask string.

migration_workflow_path

migration_workflow_path(project: str, location: str, workflow: str)

Returns a fully-qualified migration_workflow string.

parse_common_billing_account_path

parse_common_billing_account_path(path: str)

Parse a billing_account path into its component segments.

parse_common_folder_path

parse_common_folder_path(path: str)

Parse a folder path into its component segments.

parse_common_location_path

parse_common_location_path(path: str)

Parse a location path into its component segments.

parse_common_organization_path

parse_common_organization_path(path: str)

Parse a organization path into its component segments.

parse_common_project_path

parse_common_project_path(path: str)

Parse a project path into its component segments.

parse_migration_subtask_path

parse_migration_subtask_path(path: str)

Parses a migration_subtask path into its component segments.

parse_migration_workflow_path

parse_migration_workflow_path(path: str)

Parses a migration_workflow path into its component segments.

start_migration_workflow

start_migration_workflow(request: Optional[Union[google.cloud.bigquery_migration_v2.types.migration_service.StartMigrationWorkflowRequest, dict]] = None, *, name: Optional[str] = None, retry: Union[google.api_core.retry.Retry, google.api_core.gapic_v1.method._MethodDefault] = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Starts a previously created migration workflow. I.e., the state transitions from DRAFT to RUNNING. This is a no-op if the state is already RUNNING. An error will be signaled if the state is anything other than DRAFT or RUNNING.

from google.cloud import bigquery_migration_v2

def sample_start_migration_workflow():
    # Create a client
    client = bigquery_migration_v2.MigrationServiceClient()

    # Initialize request argument(s)
    request = bigquery_migration_v2.StartMigrationWorkflowRequest(
        name="name_value",
    )

    # Make the request
    client.start_migration_workflow(request=request)

Parameters

Name	Description
request	`Union[google.cloud.bigquery_migration_v2.types.StartMigrationWorkflowRequest, dict]` The request object. A request to start a previously created migration workflow.
name	`str` Required. The unique identifier for the migration workflow. Example: `projects/123/locations/us/workflows/1234` This corresponds to the `name` 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.