Class TraceServiceClient (1.0.0)

TraceServiceClient(*, credentials: google.auth.credentials.Credentials = None, transport: Union[str, google.cloud.trace_v2.services.trace_service.transports.base.TraceServiceTransport] = None, client_options: <module 'google.api_core.client_options' from '/workspace/python-trace/.nox/docfx/lib/python3.9/site-packages/google/api_core/client_options.py'> = None, client_info: google.api_core.gapic_v1.client_info.ClientInfo = <google.api_core.gapic_v1.client_info.ClientInfo object>)

This file describes an API for collecting and viewing traces and spans within a trace. A Trace is a collection of spans corresponding to a single operation or set of operations for an application. A span is an individual timed event which forms a node of the trace tree. A single trace may contain span(s) from multiple services.

Methods

TraceServiceClient

TraceServiceClient(*, credentials: google.auth.credentials.Credentials = None, transport: Union[str, google.cloud.trace_v2.services.trace_service.transports.base.TraceServiceTransport] = None, client_options: <module 'google.api_core.client_options' from '/workspace/python-trace/.nox/docfx/lib/python3.9/site-packages/google/api_core/client_options.py'> = None, client_info: google.api_core.gapic_v1.client_info.ClientInfo = <google.api_core.gapic_v1.client_info.ClientInfo object>)

Instantiate the trace 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, .TraceServiceTransport]` The transport to use. If set to None, a transport is chosen automatically.
`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 environment variable can also be used to override the endpoint: "always" (always use the default mTLS endpoint), "never" (always use the default regular endpoint, this is the default value for the environment variable) and "auto" (auto switch to the default mTLS endpoint if client SSL credentials is present). However, the `api_endpoint` property takes precedence if provided. (2) The `client_cert_source` property is used to provide client SSL credentials for mutual TLS transport. If not provided, the default SSL credentials will be used if present.
`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.

batch_write_spans

batch_write_spans(request: Optional[google.cloud.trace_v2.types.tracing.BatchWriteSpansRequest] = None, *, name: Optional[str] = None, spans: Optional[Sequence[google.cloud.trace_v2.types.trace.Span]] = None, retry: google.api_core.retry.Retry = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Sends new spans to new or existing traces. You cannot update existing spans.

Parameters

Name	Description
`request`	`.tracing.BatchWriteSpansRequest` The request object. The request message for the `BatchWriteSpans` method.
`name`	`str` Required. The name of the project where the spans belong. The format is `projects/[PROJECT_ID]`. This corresponds to the `name` field on the `request` instance; if `request` is provided, this should not be set.
`spans`	`:class:Sequence[.trace.Span]` Required. A list of new spans. The span names must not match existing spans, or the results are undefined. This corresponds to the `spans` 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.

create_span

create_span(request: Optional[google.cloud.trace_v2.types.trace.Span] = None, *, retry: google.api_core.retry.Retry = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Creates a new span.

Parameters

Name	Description
`request`	`.trace.Span` The request object. A span represents a single operation within a trace. Spans can be nested to form a trace tree. Often, a trace contains a root span that describes the end-to-end latency, and one or more subspans for its sub-operations. A trace can also contain multiple root spans, or none at all. Spans do not need to be contiguous—there may be gaps or overlaps between spans in a trace.
`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
`.trace.Span`	A span represents a single operation within a trace. Spans can be nested to form a trace tree. Often, a trace contains a root span that describes the end-to-end latency, and one or more subspans for its sub-operations. A trace can also contain multiple root spans, or none at all. Spans do not need to be contiguous—there may be gaps or overlaps between spans in a trace.

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
`{@api.name}`	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
`{@api.name}`	The constructed client.

parse_span_path

parse_span_path(path: str)

Parse a span path into its component segments.

span_path

span_path(project: str, trace: str, span: str)

Return a fully-qualified span string.