Class: Google::Cloud::TextToSpeech::V1::TextToSpeechClient

Inherits:
Object
  • Object
show all
Defined in:
lib/google/cloud/text_to_speech/v1/text_to_speech_client.rb

Overview

Service that implements Google Cloud Text-to-Speech API.

Constant Summary collapse

SERVICE_ADDRESS =

The default address of the service.

"texttospeech.googleapis.com".freeze
DEFAULT_SERVICE_PORT =

The default port of the service.

443
GRPC_INTERCEPTORS =

The default set of gRPC interceptors.

[]
DEFAULT_TIMEOUT = 
30
ALL_SCOPES =

The scopes needed to make gRPC calls to all of the methods defined in this service.

[
  "https://www.googleapis.com/auth/cloud-platform"
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(credentials: nil, scopes: ALL_SCOPES, client_config: {}, timeout: DEFAULT_TIMEOUT, metadata: nil, exception_transformer: nil, lib_name: nil, lib_version: "") ⇒ TextToSpeechClient

Returns a new instance of TextToSpeechClient

Parameters:

  • credentials (Google::Auth::Credentials, String, Hash, GRPC::Core::Channel, GRPC::Core::ChannelCredentials, Proc) —

    Provides the means for authenticating requests made by the client. This parameter can be many types. A Google::Auth::Credentials uses a the properties of its represented keyfile for authenticating requests made by this client. A String will be treated as the path to the keyfile to be used for the construction of credentials for this client. A Hash will be treated as the contents of a keyfile to be used for the construction of credentials for this client. A GRPC::Core::Channel will be used to make calls through. A GRPC::Core::ChannelCredentials for the setting up the RPC client. The channel credentials should already be composed with a GRPC::Core::CallCredentials object. A Proc will be used as an updater_proc for the Grpc channel. The proc transforms the metadata for requests, generally, to give OAuth credentials.

  • scopes (Array<String>) —

    The OAuth scopes for this service. This parameter is ignored if an updater_proc is supplied.

  • client_config (Hash) —

    A Hash for call options for each method. See Google::Gax#construct_settings for the structure of this data. Falls back to the default config if not specified or the specified config is missing data points.

  • timeout (Numeric) —

    The default timeout, in seconds, for calls made through this client.

  • metadata (Hash) —

    Default metadata to be sent with each request. This can be overridden on a per call basis.

  • exception_transformer (Proc) —

    An optional proc that intercepts any exceptions raised during an API call to inject custom error handling.



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# File 'lib/google/cloud/text_to_speech/v1/text_to_speech_client.rb', line 88

def initialize \
    credentials: nil,
    scopes: ALL_SCOPES,
    client_config: {},
    timeout: DEFAULT_TIMEOUT,
    metadata: nil,
    exception_transformer: nil,
    lib_name: nil,
    lib_version: ""
  # These require statements are intentionally placed here to initialize
  # the gRPC module only when it's required.
  # See https://github.com/googleapis/toolkit/issues/446
  require "google/gax/grpc"
  require "google/cloud/texttospeech/v1/cloud_tts_services_pb"

  credentials ||= Google::Cloud::TextToSpeech::V1::Credentials.default

  if credentials.is_a?(String) || credentials.is_a?(Hash)
    updater_proc = Google::Cloud::TextToSpeech::V1::Credentials.new(credentials).updater_proc
  end
  if credentials.is_a?(GRPC::Core::Channel)
    channel = credentials
  end
  if credentials.is_a?(GRPC::Core::ChannelCredentials)
    chan_creds = credentials
  end
  if credentials.is_a?(Proc)
    updater_proc = credentials
  end
  if credentials.is_a?(Google::Auth::Credentials)
    updater_proc = credentials.updater_proc
  end

  package_version = Gem.loaded_specs['google-cloud-text_to_speech'].version.version

  google_api_client = "gl-ruby/#{RUBY_VERSION}"
  google_api_client << " #{lib_name}/#{lib_version}" if lib_name
  google_api_client << " gapic/#{package_version} gax/#{Google::Gax::VERSION}"
  google_api_client << " grpc/#{GRPC::VERSION}"
  google_api_client.freeze

  headers = { :"x-goog-api-client" => google_api_client }
  headers.merge!(metadata) unless metadata.nil?
  client_config_file = Pathname.new(__dir__).join(
    "text_to_speech_client_config.json"
  )
  defaults = client_config_file.open do |f|
    Google::Gax.construct_settings(
      "google.cloud.texttospeech.v1.TextToSpeech",
      JSON.parse(f.read),
      client_config,
      Google::Gax::Grpc::STATUS_CODE_NAMES,
      timeout,
      errors: Google::Gax::Grpc::API_ERRORS,
      metadata: headers
    )
  end

  # Allow overriding the service path/port in subclasses.
  service_path = self.class::SERVICE_ADDRESS
  port = self.class::DEFAULT_SERVICE_PORT
  interceptors = self.class::GRPC_INTERCEPTORS
  @text_to_speech_stub = Google::Gax::Grpc.create_stub(
    service_path,
    port,
    chan_creds: chan_creds,
    channel: channel,
    updater_proc: updater_proc,
    scopes: scopes,
    interceptors: interceptors,
    &Google::Cloud::Texttospeech::V1::TextToSpeech::Stub.method(:new)
  )

  @list_voices = Google::Gax.create_api_call(
    @text_to_speech_stub.method(:list_voices),
    defaults["list_voices"],
    exception_transformer: exception_transformer
  )
  @synthesize_speech = Google::Gax.create_api_call(
    @text_to_speech_stub.method(:synthesize_speech),
    defaults["synthesize_speech"],
    exception_transformer: exception_transformer
  )
end

Instance Attribute Details

#text_to_speech_stub ⇒ Google::Cloud::Texttospeech::V1::TextToSpeech::Stub (readonly)

Returns:

  • (Google::Cloud::Texttospeech::V1::TextToSpeech::Stub) 


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# File 'lib/google/cloud/text_to_speech/v1/text_to_speech_client.rb', line 38

class TextToSpeechClient
  attr_reader :text_to_speech_stub

  # The default address of the service.
  SERVICE_ADDRESS = "texttospeech.googleapis.com".freeze

  # The default port of the service.
  DEFAULT_SERVICE_PORT = 443

  # The default set of gRPC interceptors.
  GRPC_INTERCEPTORS = []

  DEFAULT_TIMEOUT = 30

  # The scopes needed to make gRPC calls to all of the methods defined in
  # this service.
  ALL_SCOPES = [
    "https://www.googleapis.com/auth/cloud-platform"
  ].freeze


  # @param credentials [Google::Auth::Credentials, String, Hash, GRPC::Core::Channel, GRPC::Core::ChannelCredentials, Proc]
  #   Provides the means for authenticating requests made by the client. This parameter can
  #   be many types.
  #   A `Google::Auth::Credentials` uses a the properties of its represented keyfile for
  #   authenticating requests made by this client.
  #   A `String` will be treated as the path to the keyfile to be used for the construction of
  #   credentials for this client.
  #   A `Hash` will be treated as the contents of a keyfile to be used for the construction of
  #   credentials for this client.
  #   A `GRPC::Core::Channel` will be used to make calls through.
  #   A `GRPC::Core::ChannelCredentials` for the setting up the RPC client. The channel credentials
  #   should already be composed with a `GRPC::Core::CallCredentials` object.
  #   A `Proc` will be used as an updater_proc for the Grpc channel. The proc transforms the
  #   metadata for requests, generally, to give OAuth credentials.
  # @param scopes [Array<String>]
  #   The OAuth scopes for this service. This parameter is ignored if
  #   an updater_proc is supplied.
  # @param client_config [Hash]
  #   A Hash for call options for each method. See
  #   Google::Gax#construct_settings for the structure of
  #   this data. Falls back to the default config if not specified
  #   or the specified config is missing data points.
  # @param timeout [Numeric]
  #   The default timeout, in seconds, for calls made through this client.
  # @param metadata [Hash]
  #   Default metadata to be sent with each request. This can be overridden on a per call basis.
  # @param exception_transformer [Proc]
  #   An optional proc that intercepts any exceptions raised during an API call to inject
  #   custom error handling.
  def initialize \
      credentials: nil,
      scopes: ALL_SCOPES,
      client_config: {},
      timeout: DEFAULT_TIMEOUT,
      metadata: nil,
      exception_transformer: nil,
      lib_name: nil,
      lib_version: ""
    # These require statements are intentionally placed here to initialize
    # the gRPC module only when it's required.
    # See https://github.com/googleapis/toolkit/issues/446
    require "google/gax/grpc"
    require "google/cloud/texttospeech/v1/cloud_tts_services_pb"

    credentials ||= Google::Cloud::TextToSpeech::V1::Credentials.default

    if credentials.is_a?(String) || credentials.is_a?(Hash)
      updater_proc = Google::Cloud::TextToSpeech::V1::Credentials.new(credentials).updater_proc
    end
    if credentials.is_a?(GRPC::Core::Channel)
      channel = credentials
    end
    if credentials.is_a?(GRPC::Core::ChannelCredentials)
      chan_creds = credentials
    end
    if credentials.is_a?(Proc)
      updater_proc = credentials
    end
    if credentials.is_a?(Google::Auth::Credentials)
      updater_proc = credentials.updater_proc
    end

    package_version = Gem.loaded_specs['google-cloud-text_to_speech'].version.version

    google_api_client = "gl-ruby/#{RUBY_VERSION}"
    google_api_client << " #{lib_name}/#{lib_version}" if lib_name
    google_api_client << " gapic/#{package_version} gax/#{Google::Gax::VERSION}"
    google_api_client << " grpc/#{GRPC::VERSION}"
    google_api_client.freeze

    headers = { :"x-goog-api-client" => google_api_client }
    headers.merge!(metadata) unless metadata.nil?
    client_config_file = Pathname.new(__dir__).join(
      "text_to_speech_client_config.json"
    )
    defaults = client_config_file.open do |f|
      Google::Gax.construct_settings(
        "google.cloud.texttospeech.v1.TextToSpeech",
        JSON.parse(f.read),
        client_config,
        Google::Gax::Grpc::STATUS_CODE_NAMES,
        timeout,
        errors: Google::Gax::Grpc::API_ERRORS,
        metadata: headers
      )
    end

    # Allow overriding the service path/port in subclasses.
    service_path = self.class::SERVICE_ADDRESS
    port = self.class::DEFAULT_SERVICE_PORT
    interceptors = self.class::GRPC_INTERCEPTORS
    @text_to_speech_stub = Google::Gax::Grpc.create_stub(
      service_path,
      port,
      chan_creds: chan_creds,
      channel: channel,
      updater_proc: updater_proc,
      scopes: scopes,
      interceptors: interceptors,
      &Google::Cloud::Texttospeech::V1::TextToSpeech::Stub.method(:new)
    )

    @list_voices = Google::Gax.create_api_call(
      @text_to_speech_stub.method(:list_voices),
      defaults["list_voices"],
      exception_transformer: exception_transformer
    )
    @synthesize_speech = Google::Gax.create_api_call(
      @text_to_speech_stub.method(:synthesize_speech),
      defaults["synthesize_speech"],
      exception_transformer: exception_transformer
    )
  end

  # Service calls

  # Returns a list of {Google::Cloud::Texttospeech::V1::Voice Voice}
  # supported for synthesis.
  #
  # @param language_code [String]
  #   Optional (but recommended)
  #   [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag. If
  #   specified, the ListVoices call will only return voices that can be used to
  #   synthesize this language_code. E.g. when specifying "en-NZ", you will get
  #   supported "en-*" voices; when specifying "no", you will get supported
  #   "no-*" (Norwegian) and "nb-*" (Norwegian Bokmal) voices; specifying "zh"
  #   will also get supported "cmn-*" voices; specifying "zh-hk" will also get
  #   supported "yue-*" voices.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @yield [result, operation] Access the result along with the RPC operation
  # @yieldparam result [Google::Cloud::Texttospeech::V1::ListVoicesResponse]
  # @yieldparam operation [GRPC::ActiveCall::Operation]
  # @return [Google::Cloud::Texttospeech::V1::ListVoicesResponse]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/text_to_speech"
  #
  #   text_to_speech_client = Google::Cloud::TextToSpeech.new(version: :v1)
  #   response = text_to_speech_client.list_voices

  def list_voices \
      language_code: nil,
      options: nil,
      &block
    req = {
      language_code: language_code
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Cloud::Texttospeech::V1::ListVoicesRequest)
    @list_voices.call(req, options, &block)
  end

  # Synthesizes speech synchronously: receive results after all text input
  # has been processed.
  #
  # @param input [Google::Cloud::Texttospeech::V1::SynthesisInput | Hash]
  #   Required. The Synthesizer requires either plain text or SSML as input.
  #   A hash of the same form as `Google::Cloud::Texttospeech::V1::SynthesisInput`
  #   can also be provided.
  # @param voice [Google::Cloud::Texttospeech::V1::VoiceSelectionParams | Hash]
  #   Required. The desired voice of the synthesized audio.
  #   A hash of the same form as `Google::Cloud::Texttospeech::V1::VoiceSelectionParams`
  #   can also be provided.
  # @param audio_config [Google::Cloud::Texttospeech::V1::AudioConfig | Hash]
  #   Required. The configuration of the synthesized audio.
  #   A hash of the same form as `Google::Cloud::Texttospeech::V1::AudioConfig`
  #   can also be provided.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @yield [result, operation] Access the result along with the RPC operation
  # @yieldparam result [Google::Cloud::Texttospeech::V1::SynthesizeSpeechResponse]
  # @yieldparam operation [GRPC::ActiveCall::Operation]
  # @return [Google::Cloud::Texttospeech::V1::SynthesizeSpeechResponse]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/text_to_speech"
  #
  #   text_to_speech_client = Google::Cloud::TextToSpeech.new(version: :v1)
  #
  #   # TODO: Initialize +input+:
  #   input = {}
  #
  #   # TODO: Initialize +voice+:
  #   voice = {}
  #
  #   # TODO: Initialize +audio_config+:
  #   audio_config = {}
  #   response = text_to_speech_client.synthesize_speech(input, voice, audio_config)

  def synthesize_speech \
      input,
      voice,
      audio_config,
      options: nil,
      &block
    req = {
      input: input,
      voice: voice,
      audio_config: audio_config
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Cloud::Texttospeech::V1::SynthesizeSpeechRequest)
    @synthesize_speech.call(req, options, &block)
  end
end

Instance Method Details

#list_voices(language_code: nil, options: nil) {|result, operation| ... } ⇒ Google::Cloud::Texttospeech::V1::ListVoicesResponse

Returns a list of Voice supported for synthesis.

Examples:

require "google/cloud/text_to_speech"

text_to_speech_client = Google::Cloud::TextToSpeech.new(version: :v1)
response = text_to_speech_client.list_voices

Parameters:

  • language_code (String) —

    Optional (but recommended) BCP-47 language tag. If specified, the ListVoices call will only return voices that can be used to synthesize this language_code. E.g. when specifying "en-NZ", you will get supported "en-" voices; when specifying "no", you will get supported "no-" (Norwegian) and "nb-" (Norwegian Bokmal) voices; specifying "zh" will also get supported "cmn-" voices; specifying "zh-hk" will also get supported "yue-*" voices.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Yields:

  • (result, operation) —

    Access the result along with the RPC operation

Yield Parameters:

Returns:

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/text_to_speech/v1/text_to_speech_client.rb', line 201

def list_voices \
    language_code: nil,
    options: nil,
    &block
  req = {
    language_code: language_code
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Cloud::Texttospeech::V1::ListVoicesRequest)
  @list_voices.call(req, options, &block)
end

#synthesize_speech(input, voice, audio_config, options: nil) {|result, operation| ... } ⇒ Google::Cloud::Texttospeech::V1::SynthesizeSpeechResponse

Synthesizes speech synchronously: receive results after all text input has been processed.

Examples:

require "google/cloud/text_to_speech"

text_to_speech_client = Google::Cloud::TextToSpeech.new(version: :v1)

# TODO: Initialize +input+:
input = {}

# TODO: Initialize +voice+:
voice = {}

# TODO: Initialize +audio_config+:
audio_config = {}
response = text_to_speech_client.synthesize_speech(input, voice, audio_config)

Parameters:

  • input (Google::Cloud::Texttospeech::V1::SynthesisInput | Hash) —

    Required. The Synthesizer requires either plain text or SSML as input. A hash of the same form as Google::Cloud::Texttospeech::V1::SynthesisInput can also be provided.

  • voice (Google::Cloud::Texttospeech::V1::VoiceSelectionParams | Hash) —

    Required. The desired voice of the synthesized audio. A hash of the same form as Google::Cloud::Texttospeech::V1::VoiceSelectionParams can also be provided.

  • audio_config (Google::Cloud::Texttospeech::V1::AudioConfig | Hash) —

    Required. The configuration of the synthesized audio. A hash of the same form as Google::Cloud::Texttospeech::V1::AudioConfig can also be provided.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Yields:

  • (result, operation) —

    Access the result along with the RPC operation

Yield Parameters:

Returns:

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/text_to_speech/v1/text_to_speech_client.rb', line 250

def synthesize_speech \
    input,
    voice,
    audio_config,
    options: nil,
    &block
  req = {
    input: input,
    voice: voice,
    audio_config: audio_config
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Cloud::Texttospeech::V1::SynthesizeSpeechRequest)
  @synthesize_speech.call(req, options, &block)
end