Stackdriver Trace V2 Client - Class TraceServiceClient (1.8.7)

Reference documentation and code samples for the Stackdriver Trace V2 Client class TraceServiceClient.

Service Description: Service for collecting and viewing traces and spans within a trace.

A trace is a collection of spans corresponding to a single operation or a set of operations in an application.

A span is an individual timed event which forms a node of the trace tree. A single trace can contain spans from multiple services.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods.

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parseName method to extract the individual identifiers contained within formatted names that are returned by the API.

Namespace

Google \ Cloud \ Trace \ V2 \ Client

Methods

__construct

Constructor.

Parameters
Name	Description
`options`	`array` Optional. Options for configuring the service API wrapper.
`↳ apiEndpoint`	`string` The address of the API remote host. May optionally include the port, formatted as "
`↳ credentials`	`string\|array\|FetchAuthTokenInterface\|CredentialsWrapper` The credentials to be used by the client to authorize API calls. This option accepts either a path to a credentials file, or a decoded credentials file as a PHP array. Advanced usage: In addition, this option can also accept a pre-constructed Google\Auth\FetchAuthTokenInterface object or Google\ApiCore\CredentialsWrapper object. Note that when one of these objects are provided, any settings in $credentialsConfig will be ignored.
`↳ credentialsConfig`	`array` Options used to configure credentials, including auth token caching, for the client. For a full list of supporting configuration options, see Google\ApiCore\CredentialsWrapper::build() .
`↳ disableRetries`	`bool` Determines whether or not retries defined by the client configuration should be disabled. Defaults to `false`.
`↳ clientConfig`	`string\|array` Client method configuration, including retry settings. This option can be either a path to a JSON file, or a PHP array containing the decoded JSON data. By default this settings points to the default client config file, which is provided in the resources folder.
`↳ transport`	`string\|TransportInterface` The transport used for executing network requests. May be either the string `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system. Advanced usage: Additionally, it is possible to pass in an already instantiated Google\ApiCore\Transport\TransportInterface object. Note that when this object is provided, any settings in $transportConfig, and any $apiEndpoint setting, will be ignored.
`↳ transportConfig`	`array` Configuration options that will be used to construct the transport. Options for each supported transport type should be passed in a key for that transport. For example: $transportConfig = [ 'grpc' => [...], 'rest' => [...], ]; See the Google\ApiCore\Transport\GrpcTransport::build() and Google\ApiCore\Transport\RestTransport::build() methods for the supported options.
`↳ clientCertSource`	`callable` A callable which returns the client cert as a string. This can be used to provide a certificate and private key to the transport layer for mTLS.

batchWriteSpans

Batch writes new spans to new or existing traces. You cannot update existing spans.

The async variant is TraceServiceClient::batchWriteSpansAsync() .

Parameters
Name	Description
`request`	`Google\Cloud\Trace\V2\BatchWriteSpansRequest` A request to house fields associated with the call.
`callOptions`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Trace\V2\BatchWriteSpansRequest;
use Google\Cloud\Trace\V2\Client\TraceServiceClient;
use Google\Cloud\Trace\V2\Span;
use Google\Cloud\Trace\V2\TruncatableString;
use Google\Protobuf\Timestamp;

/**
 * @param string $formattedName The name of the project where the spans belong. The format is
 *                              `projects/[PROJECT_ID]`. Please see
 *                              {@see TraceServiceClient::projectName()} for help formatting this field.
 * @param string $spansName     The resource name of the span in the following format:
 *
 *                              * `projects/[PROJECT_ID]/traces/[TRACE_ID]/spans/[SPAN_ID]`
 *
 *                              `[TRACE_ID]` is a unique identifier for a trace within a project;
 *                              it is a 32-character hexadecimal encoding of a 16-byte array. It should
 *                              not be zero.
 *
 *                              `[SPAN_ID]` is a unique identifier for a span within a trace; it
 *                              is a 16-character hexadecimal encoding of an 8-byte array. It should not
 *                              be zero.
 *                              .
 * @param string $spansSpanId   The `[SPAN_ID]` portion of the span's resource name.
 */
function batch_write_spans_sample(
    string $formattedName,
    string $spansName,
    string $spansSpanId
): void {
    // Create a client.
    $traceServiceClient = new TraceServiceClient();

    // Prepare the request message.
    $spansDisplayName = new TruncatableString();
    $spansStartTime = new Timestamp();
    $spansEndTime = new Timestamp();
    $span = (new Span())
        ->setName($spansName)
        ->setSpanId($spansSpanId)
        ->setDisplayName($spansDisplayName)
        ->setStartTime($spansStartTime)
        ->setEndTime($spansEndTime);
    $spans = [$span,];
    $request = (new BatchWriteSpansRequest())
        ->setName($formattedName)
        ->setSpans($spans);

    // Call the API and handle any network failures.
    try {
        $traceServiceClient->batchWriteSpans($request);
        printf('Call completed successfully.' . PHP_EOL);
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample 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,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedName = TraceServiceClient::projectName('[PROJECT]');
    $spansName = '[NAME]';
    $spansSpanId = '[SPAN_ID]';

    batch_write_spans_sample($formattedName, $spansName, $spansSpanId);
}

createSpan

Creates a new span.

The async variant is TraceServiceClient::createSpanAsync() .

Parameters
Name	Description
`request`	`Google\Cloud\Trace\V2\Span` A request to house fields associated with the call.
`callOptions`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\Cloud\Trace\V2\Span`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Trace\V2\Client\TraceServiceClient;
use Google\Cloud\Trace\V2\Span;
use Google\Cloud\Trace\V2\TruncatableString;
use Google\Protobuf\Timestamp;

/**
 * @param string $name   The resource name of the span in the following format:
 *
 *                       * `projects/[PROJECT_ID]/traces/[TRACE_ID]/spans/[SPAN_ID]`
 *
 *                       `[TRACE_ID]` is a unique identifier for a trace within a project;
 *                       it is a 32-character hexadecimal encoding of a 16-byte array. It should
 *                       not be zero.
 *
 *                       `[SPAN_ID]` is a unique identifier for a span within a trace; it
 *                       is a 16-character hexadecimal encoding of an 8-byte array. It should not
 *                       be zero.
 *                       .
 * @param string $spanId The `[SPAN_ID]` portion of the span's resource name.
 */
function create_span_sample(string $name, string $spanId): void
{
    // Create a client.
    $traceServiceClient = new TraceServiceClient();

    // Prepare the request message.
    $displayName = new TruncatableString();
    $startTime = new Timestamp();
    $endTime = new Timestamp();
    $request = (new Span())
        ->setName($name)
        ->setSpanId($spanId)
        ->setDisplayName($displayName)
        ->setStartTime($startTime)
        ->setEndTime($endTime);

    // Call the API and handle any network failures.
    try {
        /** @var Span $response */
        $response = $traceServiceClient->createSpan($request);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample 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,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $name = '[NAME]';
    $spanId = '[SPAN_ID]';

    create_span_sample($name, $spanId);
}

batchWriteSpansAsync

Parameters
Name	Description
`request`	`Google\Cloud\Trace\V2\BatchWriteSpansRequest`
`optionalArgs`	`array`

Returns
Type	Description
`GuzzleHttp\Promise\PromiseInterface<void>`

createSpanAsync

Parameters
Name	Description
`request`	`Google\Cloud\Trace\V2\Span`
`optionalArgs`	`array`

Returns
Type	Description
`GuzzleHttp\Promise\PromiseInterface<Google\Cloud\Trace\V2\Span>`

static::projectName

Formats a string containing the fully-qualified path to represent a project resource.

Parameter
Name	Description
`project`	`string`

Returns
Type	Description
`string`	The formatted project resource.

static::spanName

Formats a string containing the fully-qualified path to represent a span resource.

Parameters
Name	Description
`project`	`string`
`trace`	`string`
`span`	`string`

Returns
Type	Description
`string`	The formatted span resource.

static::parseName

Parses a formatted name string and returns an associative array of the components in the name.

The following name formats are supported: Template: Pattern

project: projects/{project}
span: projects/{project}/traces/{trace}/spans/{span}

The optional $template argument can be supplied to specify a particular pattern, and must match one of the templates listed above. If no $template argument is provided, or if the $template argument does not match one of the templates listed, then parseName will check each of the supported templates, and return the first match.

Parameters
Name	Description
`formattedName`	`string` The formatted name string
`template`	`string` Optional name of template to match

Returns
Type	Description
`array`	An associative array from name component IDs to component values.