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text_to_speech_client.go
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text_to_speech_client.go
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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
package texttospeech
import (
"bytes"
"context"
"fmt"
"io"
"math"
"net/http"
"net/url"
"time"
texttospeechpb "cloud.google.com/go/texttospeech/apiv1/texttospeechpb"
gax "github.com/googleapis/gax-go/v2"
"google.golang.org/api/googleapi"
"google.golang.org/api/option"
"google.golang.org/api/option/internaloption"
gtransport "google.golang.org/api/transport/grpc"
httptransport "google.golang.org/api/transport/http"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/protobuf/encoding/protojson"
)
var newClientHook clientHook
// CallOptions contains the retry settings for each method of Client.
type CallOptions struct {
ListVoices []gax.CallOption
SynthesizeSpeech []gax.CallOption
}
func defaultGRPCClientOptions() []option.ClientOption {
return []option.ClientOption{
internaloption.WithDefaultEndpoint("texttospeech.googleapis.com:443"),
internaloption.WithDefaultMTLSEndpoint("texttospeech.mtls.googleapis.com:443"),
internaloption.WithDefaultAudience("https://texttospeech.googleapis.com/"),
internaloption.WithDefaultScopes(DefaultAuthScopes()...),
internaloption.EnableJwtWithScope(),
option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
grpc.MaxCallRecvMsgSize(math.MaxInt32))),
}
}
func defaultCallOptions() *CallOptions {
return &CallOptions{
ListVoices: []gax.CallOption{
gax.WithTimeout(300000 * time.Millisecond),
gax.WithRetry(func() gax.Retryer {
return gax.OnCodes([]codes.Code{
codes.Unavailable,
codes.DeadlineExceeded,
}, gax.Backoff{
Initial: 100 * time.Millisecond,
Max: 60000 * time.Millisecond,
Multiplier: 1.30,
})
}),
},
SynthesizeSpeech: []gax.CallOption{
gax.WithTimeout(300000 * time.Millisecond),
gax.WithRetry(func() gax.Retryer {
return gax.OnCodes([]codes.Code{
codes.Unavailable,
codes.DeadlineExceeded,
}, gax.Backoff{
Initial: 100 * time.Millisecond,
Max: 60000 * time.Millisecond,
Multiplier: 1.30,
})
}),
},
}
}
func defaultRESTCallOptions() *CallOptions {
return &CallOptions{
ListVoices: []gax.CallOption{
gax.WithTimeout(300000 * time.Millisecond),
gax.WithRetry(func() gax.Retryer {
return gax.OnHTTPCodes(gax.Backoff{
Initial: 100 * time.Millisecond,
Max: 60000 * time.Millisecond,
Multiplier: 1.30,
},
http.StatusServiceUnavailable,
http.StatusGatewayTimeout)
}),
},
SynthesizeSpeech: []gax.CallOption{
gax.WithTimeout(300000 * time.Millisecond),
gax.WithRetry(func() gax.Retryer {
return gax.OnHTTPCodes(gax.Backoff{
Initial: 100 * time.Millisecond,
Max: 60000 * time.Millisecond,
Multiplier: 1.30,
},
http.StatusServiceUnavailable,
http.StatusGatewayTimeout)
}),
},
}
}
// internalClient is an interface that defines the methods available from Cloud Text-to-Speech API.
type internalClient interface {
Close() error
setGoogleClientInfo(...string)
Connection() *grpc.ClientConn
ListVoices(context.Context, *texttospeechpb.ListVoicesRequest, ...gax.CallOption) (*texttospeechpb.ListVoicesResponse, error)
SynthesizeSpeech(context.Context, *texttospeechpb.SynthesizeSpeechRequest, ...gax.CallOption) (*texttospeechpb.SynthesizeSpeechResponse, error)
}
// Client is a client for interacting with Cloud Text-to-Speech API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Service that implements Google Cloud Text-to-Speech API.
type Client struct {
// The internal transport-dependent client.
internalClient internalClient
// The call options for this service.
CallOptions *CallOptions
}
// Wrapper methods routed to the internal client.
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *Client) Close() error {
return c.internalClient.Close()
}
// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *Client) setGoogleClientInfo(keyval ...string) {
c.internalClient.setGoogleClientInfo(keyval...)
}
// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *Client) Connection() *grpc.ClientConn {
return c.internalClient.Connection()
}
// ListVoices returns a list of Voice supported for synthesis.
func (c *Client) ListVoices(ctx context.Context, req *texttospeechpb.ListVoicesRequest, opts ...gax.CallOption) (*texttospeechpb.ListVoicesResponse, error) {
return c.internalClient.ListVoices(ctx, req, opts...)
}
// SynthesizeSpeech synthesizes speech synchronously: receive results after all text input
// has been processed.
func (c *Client) SynthesizeSpeech(ctx context.Context, req *texttospeechpb.SynthesizeSpeechRequest, opts ...gax.CallOption) (*texttospeechpb.SynthesizeSpeechResponse, error) {
return c.internalClient.SynthesizeSpeech(ctx, req, opts...)
}
// gRPCClient is a client for interacting with Cloud Text-to-Speech API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type gRPCClient struct {
// Connection pool of gRPC connections to the service.
connPool gtransport.ConnPool
// Points back to the CallOptions field of the containing Client
CallOptions **CallOptions
// The gRPC API client.
client texttospeechpb.TextToSpeechClient
// The x-goog-* metadata to be sent with each request.
xGoogHeaders []string
}
// NewClient creates a new text to speech client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Service that implements Google Cloud Text-to-Speech API.
func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
clientOpts := defaultGRPCClientOptions()
if newClientHook != nil {
hookOpts, err := newClientHook(ctx, clientHookParams{})
if err != nil {
return nil, err
}
clientOpts = append(clientOpts, hookOpts...)
}
connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
if err != nil {
return nil, err
}
client := Client{CallOptions: defaultCallOptions()}
c := &gRPCClient{
connPool: connPool,
client: texttospeechpb.NewTextToSpeechClient(connPool),
CallOptions: &client.CallOptions,
}
c.setGoogleClientInfo()
client.internalClient = c
return &client, nil
}
// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *gRPCClient) Connection() *grpc.ClientConn {
return c.connPool.Conn()
}
// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *gRPCClient) setGoogleClientInfo(keyval ...string) {
kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
c.xGoogHeaders = []string{"x-goog-api-client", gax.XGoogHeader(kv...)}
}
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *gRPCClient) Close() error {
return c.connPool.Close()
}
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type restClient struct {
// The http endpoint to connect to.
endpoint string
// The http client.
httpClient *http.Client
// The x-goog-* headers to be sent with each request.
xGoogHeaders []string
// Points back to the CallOptions field of the containing Client
CallOptions **CallOptions
}
// NewRESTClient creates a new text to speech rest client.
//
// Service that implements Google Cloud Text-to-Speech API.
func NewRESTClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
clientOpts := append(defaultRESTClientOptions(), opts...)
httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
if err != nil {
return nil, err
}
callOpts := defaultRESTCallOptions()
c := &restClient{
endpoint: endpoint,
httpClient: httpClient,
CallOptions: &callOpts,
}
c.setGoogleClientInfo()
return &Client{internalClient: c, CallOptions: callOpts}, nil
}
func defaultRESTClientOptions() []option.ClientOption {
return []option.ClientOption{
internaloption.WithDefaultEndpoint("https://texttospeech.googleapis.com"),
internaloption.WithDefaultMTLSEndpoint("https://texttospeech.mtls.googleapis.com"),
internaloption.WithDefaultAudience("https://texttospeech.googleapis.com/"),
internaloption.WithDefaultScopes(DefaultAuthScopes()...),
}
}
// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *restClient) setGoogleClientInfo(keyval ...string) {
kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
c.xGoogHeaders = []string{"x-goog-api-client", gax.XGoogHeader(kv...)}
}
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *restClient) Close() error {
// Replace httpClient with nil to force cleanup.
c.httpClient = nil
return nil
}
// Connection returns a connection to the API service.
//
// Deprecated: This method always returns nil.
func (c *restClient) Connection() *grpc.ClientConn {
return nil
}
func (c *gRPCClient) ListVoices(ctx context.Context, req *texttospeechpb.ListVoicesRequest, opts ...gax.CallOption) (*texttospeechpb.ListVoicesResponse, error) {
ctx = gax.InsertMetadataIntoOutgoingContext(ctx, c.xGoogHeaders...)
opts = append((*c.CallOptions).ListVoices[0:len((*c.CallOptions).ListVoices):len((*c.CallOptions).ListVoices)], opts...)
var resp *texttospeechpb.ListVoicesResponse
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.ListVoices(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
func (c *gRPCClient) SynthesizeSpeech(ctx context.Context, req *texttospeechpb.SynthesizeSpeechRequest, opts ...gax.CallOption) (*texttospeechpb.SynthesizeSpeechResponse, error) {
ctx = gax.InsertMetadataIntoOutgoingContext(ctx, c.xGoogHeaders...)
opts = append((*c.CallOptions).SynthesizeSpeech[0:len((*c.CallOptions).SynthesizeSpeech):len((*c.CallOptions).SynthesizeSpeech)], opts...)
var resp *texttospeechpb.SynthesizeSpeechResponse
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.SynthesizeSpeech(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
// ListVoices returns a list of Voice supported for synthesis.
func (c *restClient) ListVoices(ctx context.Context, req *texttospeechpb.ListVoicesRequest, opts ...gax.CallOption) (*texttospeechpb.ListVoicesResponse, error) {
baseUrl, err := url.Parse(c.endpoint)
if err != nil {
return nil, err
}
baseUrl.Path += fmt.Sprintf("/v1/voices")
params := url.Values{}
params.Add("$alt", "json;enum-encoding=int")
if req.GetLanguageCode() != "" {
params.Add("languageCode", fmt.Sprintf("%v", req.GetLanguageCode()))
}
baseUrl.RawQuery = params.Encode()
// Build HTTP headers from client and context metadata.
hds := append(c.xGoogHeaders, "Content-Type", "application/json")
headers := gax.BuildHeaders(ctx, hds...)
opts = append((*c.CallOptions).ListVoices[0:len((*c.CallOptions).ListVoices):len((*c.CallOptions).ListVoices)], opts...)
unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
resp := &texttospeechpb.ListVoicesResponse{}
e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
if settings.Path != "" {
baseUrl.Path = settings.Path
}
httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
if err != nil {
return err
}
httpReq = httpReq.WithContext(ctx)
httpReq.Header = headers
httpRsp, err := c.httpClient.Do(httpReq)
if err != nil {
return err
}
defer httpRsp.Body.Close()
if err = googleapi.CheckResponse(httpRsp); err != nil {
return err
}
buf, err := io.ReadAll(httpRsp.Body)
if err != nil {
return err
}
if err := unm.Unmarshal(buf, resp); err != nil {
return err
}
return nil
}, opts...)
if e != nil {
return nil, e
}
return resp, nil
}
// SynthesizeSpeech synthesizes speech synchronously: receive results after all text input
// has been processed.
func (c *restClient) SynthesizeSpeech(ctx context.Context, req *texttospeechpb.SynthesizeSpeechRequest, opts ...gax.CallOption) (*texttospeechpb.SynthesizeSpeechResponse, error) {
m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
jsonReq, err := m.Marshal(req)
if err != nil {
return nil, err
}
baseUrl, err := url.Parse(c.endpoint)
if err != nil {
return nil, err
}
baseUrl.Path += fmt.Sprintf("/v1/text:synthesize")
params := url.Values{}
params.Add("$alt", "json;enum-encoding=int")
baseUrl.RawQuery = params.Encode()
// Build HTTP headers from client and context metadata.
hds := append(c.xGoogHeaders, "Content-Type", "application/json")
headers := gax.BuildHeaders(ctx, hds...)
opts = append((*c.CallOptions).SynthesizeSpeech[0:len((*c.CallOptions).SynthesizeSpeech):len((*c.CallOptions).SynthesizeSpeech)], opts...)
unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
resp := &texttospeechpb.SynthesizeSpeechResponse{}
e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
if settings.Path != "" {
baseUrl.Path = settings.Path
}
httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
if err != nil {
return err
}
httpReq = httpReq.WithContext(ctx)
httpReq.Header = headers
httpRsp, err := c.httpClient.Do(httpReq)
if err != nil {
return err
}
defer httpRsp.Body.Close()
if err = googleapi.CheckResponse(httpRsp); err != nil {
return err
}
buf, err := io.ReadAll(httpRsp.Body)
if err != nil {
return err
}
if err := unm.Unmarshal(buf, resp); err != nil {
return err
}
return nil
}, opts...)
if e != nil {
return nil, e
}
return resp, nil
}