Google Cloud Service Directory V1beta1 Client - Class LookupServiceClient (1.3.6)

Reference documentation and code samples for the Google Cloud Service Directory V1beta1 Client class LookupServiceClient.

Service Description: Service Directory API for looking up service data at runtime.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:

$lookupServiceClient = new LookupServiceClient();
try {
    $formattedName = $lookupServiceClient->serviceName('[PROJECT]', '[LOCATION]', '[NAMESPACE]', '[SERVICE]');
    $response = $lookupServiceClient->resolveService($formattedName);
} finally {
    $lookupServiceClient->close();
}

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 \ ServiceDirectory \ V1beta1

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.

resolveService

Returns a service and its associated endpoints.

Resolving a service is not considered an active developer method.

Parameters
Name Description
name string

Required. The name of the service to resolve.
optionalArgs array

Optional.
↳ maxEndpoints int

Optional. The maximum number of endpoints to return. Defaults to 25. Maximum is 100. If a value less than one is specified, the Default is used. If a value greater than the Maximum is specified, the Maximum is used.
↳ endpointFilter string

Optional. The filter applied to the endpoints of the resolved service. General filter string syntax: <field> <operator> <value> (<logical connector>) * <field> can be name, address, port, or metadata.<key> for map field * <operator> can be <, >, <=, >=, !=, =, :. Of which : means HAS, and is roughly the same as = * <value> must be the same data type as field * <logical connector> can be AND, OR, NOT Examples of valid filters: * metadata.owner returns endpoints that have a annotation with the key owner, this is the same as metadata:owner * metadata.protocol=gRPC returns endpoints that have key/value protocol=gRPC * address=192.108.1.105 returns endpoints that have this address * port>8080 returns endpoints that have port number larger than 8080 * name>projects/my-project/locations/us-east1/namespaces/my-namespace/services/my-service/endpoints/endpoint-c returns endpoints that have name that is alphabetically later than the string, so "endpoint-e" is returned but "endpoint-a" is not * name=projects/my-project/locations/us-central1/namespaces/my-namespace/services/my-service/endpoints/ep-1 returns the endpoint that has an endpoint_id equal to ep-1 * metadata.owner!=sd AND metadata.foo=bar returns endpoints that have owner in annotation key but value is not sd AND have key/value foo=bar * doesnotexist.foo=bar returns an empty list. Note that endpoint doesn't have a field called "doesnotexist". Since the filter does not match any endpoint, it returns no results For more information about filtering, see API Filtering.
↳ 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\ServiceDirectory\V1beta1\ResolveServiceResponse
Example 
use Google\ApiCore\ApiException;
use Google\Cloud\ServiceDirectory\V1beta1\LookupServiceClient;
use Google\Cloud\ServiceDirectory\V1beta1\ResolveServiceResponse;

/**
 * @param string $formattedName The name of the service to resolve. Please see
 *                              {@see LookupServiceClient::serviceName()} for help formatting this field.
 */
function resolve_service_sample(string $formattedName): void
{
    // Create a client.
    $lookupServiceClient = new LookupServiceClient();

    // Call the API and handle any network failures.
    try {
        /** @var ResolveServiceResponse $response */
        $response = $lookupServiceClient->resolveService($formattedName);
        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
{
    $formattedName = LookupServiceClient::serviceName(
        '[PROJECT]',
        '[LOCATION]',
        '[NAMESPACE]',
        '[SERVICE]'
    );

    resolve_service_sample($formattedName);
}

getLocation

Gets information about a location.

Parameters
Name Description
optionalArgs array

Optional.
↳ name string

Resource name for the location.
↳ 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\Location\Location
Example 
use Google\ApiCore\ApiException;
use Google\Cloud\Location\Location;
use Google\Cloud\ServiceDirectory\V1beta1\LookupServiceClient;

/**
 * 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 get_location_sample(): void
{
    // Create a client.
    $lookupServiceClient = new LookupServiceClient();

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

listLocations

Lists information about the supported locations for this service.

Parameters
Name Description
optionalArgs array

Optional.
↳ name string

The resource that owns the locations collection, if applicable.
↳ filter string

The standard list filter.
↳ pageSize int

The maximum number of resources contained in the underlying API response. The API may return fewer values in a page, even if there are additional values to be retrieved.
↳ pageToken string

A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.
↳ 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\ApiCore\PagedListResponse
Example 
use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Location\Location;
use Google\Cloud\ServiceDirectory\V1beta1\LookupServiceClient;

/**
 * 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 list_locations_sample(): void
{
    // Create a client.
    $lookupServiceClient = new LookupServiceClient();

    // Call the API and handle any network failures.
    try {
        /** @var PagedListResponse $response */
        $response = $lookupServiceClient->listLocations();

        /** @var Location $element */
        foreach ($response as $element) {
            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

static::serviceName

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

Parameters
Name Description
project string
location string
namespace string
service string
Returns
Type Description
string The formatted service 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

  • service: projects/{project}/locations/{location}/namespaces/{namespace}/services/{service}

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.

Constants

SERVICE_NAME

Value: 'google.cloud.servicedirectory.v1beta1.LookupService'

The name of the service.

SERVICE_ADDRESS

Value: 'servicedirectory.googleapis.com'

The default address of the service.

DEFAULT_SERVICE_PORT

Value: 443

The default port of the service.

CODEGEN_NAME

Value: 'gapic'

The name of the code generator, to be included in the agent header.