Class: Google::Cloud::Retail::V2::PredictionService::Rest::Client

Inherits:
Object
  • Object
show all
Includes:
Paths
Defined in:
lib/google/cloud/retail/v2/prediction_service/rest/client.rb

Overview

REST client for the PredictionService service.

Service for making recommendation prediction.

Defined Under Namespace

Classes: Configuration

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Paths

#product_path

Constructor Details

#initialize {|config| ... } ⇒ Client

Create a new PredictionService REST client object.

Examples:


# Create a client using the default configuration
client = ::Google::Cloud::Retail::V2::PredictionService::Rest::Client.new

# Create a client using a custom configuration
client = ::Google::Cloud::Retail::V2::PredictionService::Rest::Client.new do |config|
  config.timeout = 10.0
end

Yields:

  • (config) —

    Configure the PredictionService client.

Yield Parameters:



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# File 'lib/google/cloud/retail/v2/prediction_service/rest/client.rb', line 132

def initialize
  # Create the configuration object
  @config = Configuration.new Client.configure

  # Yield the configuration if needed
  yield @config if block_given?

  # Create credentials
  credentials = @config.credentials
  # Use self-signed JWT if the endpoint is unchanged from default,
  # but only if the default endpoint does not have a region prefix.
  enable_self_signed_jwt = @config.endpoint.nil? ||
                           (@config.endpoint == Configuration::DEFAULT_ENDPOINT &&
                           !@config.endpoint.split(".").first.include?("-"))
  credentials ||= Credentials.default scope: @config.scope,
                                      enable_self_signed_jwt: enable_self_signed_jwt
  if credentials.is_a?(::String) || credentials.is_a?(::Hash)
    credentials = Credentials.new credentials, scope: @config.scope
  end

  @quota_project_id = @config.quota_project
  @quota_project_id ||= credentials.quota_project_id if credentials.respond_to? :quota_project_id

  @prediction_service_stub = ::Google::Cloud::Retail::V2::PredictionService::Rest::ServiceStub.new(
    endpoint: @config.endpoint,
    endpoint_template: DEFAULT_ENDPOINT_TEMPLATE,
    universe_domain: @config.universe_domain,
    credentials: credentials,
    logger: @config.logger
  )

  @prediction_service_stub.logger(stub: true)&.info do |entry|
    entry.set_system_name
    entry.set_service
    entry.message = "Created client for #{entry.service}"
    entry.set_credentials_fields credentials
    entry.set "customEndpoint", @config.endpoint if @config.endpoint
    entry.set "defaultTimeout", @config.timeout if @config.timeout
    entry.set "quotaProject", @quota_project_id if @quota_project_id
  end

  @location_client = Google::Cloud::Location::Locations::Rest::Client.new do |config|
    config.credentials = credentials
    config.quota_project = @quota_project_id
    config.endpoint = @prediction_service_stub.endpoint
    config.universe_domain = @prediction_service_stub.universe_domain
    config.logger = @prediction_service_stub.logger if config.respond_to? :logger=
  end
end

Instance Attribute Details

#location_client ⇒ Google::Cloud::Location::Locations::Rest::Client (readonly)

Get the associated client for mix-in of the Locations.



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# File 'lib/google/cloud/retail/v2/prediction_service/rest/client.rb', line 187

def location_client
  @location_client
end

Class Method Details

.configure {|config| ... } ⇒ Client::Configuration

Configure the PredictionService Client class.

See Configuration for a description of the configuration fields.

Examples:


# Modify the configuration for all PredictionService clients
::Google::Cloud::Retail::V2::PredictionService::Rest::Client.configure do |config|
  config.timeout = 10.0
end

Yields:

  • (config) —

    Configure the Client client.

Yield Parameters:



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# File 'lib/google/cloud/retail/v2/prediction_service/rest/client.rb', line 65

def self.configure
  @configure ||= begin
    namespace = ["Google", "Cloud", "Retail", "V2"]
    parent_config = while namespace.any?
                      parent_name = namespace.join "::"
                      parent_const = const_get parent_name
                      break parent_const.configure if parent_const.respond_to? :configure
                      namespace.pop
                    end
    default_config = Client::Configuration.new parent_config

    default_config.timeout = 5.0
    default_config.retry_policy = {
      initial_delay: 0.1, max_delay: 5.0, multiplier: 1.3, retry_codes: [14, 4]
    }

    default_config
  end
  yield @configure if block_given?
  @configure
end

Instance Method Details

#configure {|config| ... } ⇒ Client::Configuration

Configure the PredictionService Client instance.

The configuration is set to the derived mode, meaning that values can be changed, but structural changes (adding new fields, etc.) are not allowed. Structural changes should be made on configure.

See Configuration for a description of the configuration fields.

Yields:

  • (config) —

    Configure the Client client.

Yield Parameters:



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# File 'lib/google/cloud/retail/v2/prediction_service/rest/client.rb', line 102

def configure
  yield @config if block_given?
  @config
end

#logger ⇒ Logger

The logger used for request/response debug logging.



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# File 'lib/google/cloud/retail/v2/prediction_service/rest/client.rb', line 194

def logger
  @prediction_service_stub.logger
end

#predict(request, options = nil) ⇒ ::Google::Cloud::Retail::V2::PredictResponse #predict(placement: nil, user_event: nil, page_size: nil, page_token: nil, filter: nil, validate_only: nil, params: nil, labels: nil) ⇒ ::Google::Cloud::Retail::V2::PredictResponse

Makes a recommendation prediction.

Examples:

Basic example

require "google/cloud/retail/v2"

# Create a client object. The client can be reused for multiple calls.
client = Google::Cloud::Retail::V2::PredictionService::Rest::Client.new

# Create a request. To set request fields, pass in keyword arguments.
request = Google::Cloud::Retail::V2::PredictRequest.new

# Call the predict method.
result = client.predict request

# The returned object is of type Google::Cloud::Retail::V2::PredictResponse.
p result

Overloads:

Yields:

  • (result, operation) —

    Access the result along with the TransportOperation object

Yield Parameters:

Raises:

  • (::Google::Cloud::Error) —

    if the REST call is aborted.



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# File 'lib/google/cloud/retail/v2/prediction_service/rest/client.rb', line 369

def predict request, options = nil
  raise ::ArgumentError, "request must be provided" if request.nil?

  request = ::Gapic::Protobuf.coerce request, to: ::Google::Cloud::Retail::V2::PredictRequest

  # Converts hash and nil to an options object
  options = ::Gapic::CallOptions.new(**options.to_h) if options.respond_to? :to_h

  # Customize the options with defaults
  call_metadata = @config.rpcs.predict.metadata.to_h

  # Set x-goog-api-client, x-goog-user-project and x-goog-api-version headers
  call_metadata[:"x-goog-api-client"] ||= ::Gapic::Headers.x_goog_api_client \
    lib_name: @config.lib_name, lib_version: @config.lib_version,
    gapic_version: ::Google::Cloud::Retail::V2::VERSION,
    transports_version_send: [:rest]

  call_metadata[:"x-goog-api-version"] = API_VERSION unless API_VERSION.empty?
  call_metadata[:"x-goog-user-project"] = @quota_project_id if @quota_project_id

  options.apply_defaults timeout:      @config.rpcs.predict.timeout,
                         metadata:     call_metadata,
                         retry_policy: @config.rpcs.predict.retry_policy

  options.apply_defaults timeout:      @config.timeout,
                         metadata:     @config.metadata,
                         retry_policy: @config.retry_policy

  @prediction_service_stub.predict request, options do |result, operation|
    yield result, operation if block_given?
  end
rescue ::Gapic::Rest::Error => e
  raise ::Google::Cloud::Error.from_error(e)
end

#universe_domain ⇒ String

The effective universe domain



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# File 'lib/google/cloud/retail/v2/prediction_service/rest/client.rb', line 112

def universe_domain
  @prediction_service_stub.universe_domain
end