/
speech_client.go
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/
speech_client.go
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// Copyright 2016 Google Inc. All Rights Reserved.
//
// 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
//
// http://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.
// AUTO-GENERATED CODE. DO NOT EDIT.
package speech
import (
"fmt"
"runtime"
"time"
gax "github.com/googleapis/gax-go"
"golang.org/x/net/context"
"google.golang.org/api/option"
"google.golang.org/api/transport"
speechpb "google.golang.org/genproto/googleapis/cloud/speech/v1beta1"
longrunningpb "google.golang.org/genproto/googleapis/longrunning"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
)
// CallOptions contains the retry settings for each method of this client.
type CallOptions struct {
SyncRecognize []gax.CallOption
AsyncRecognize []gax.CallOption
}
func defaultClientOptions() []option.ClientOption {
return []option.ClientOption{
option.WithEndpoint("speech.googleapis.com:443"),
option.WithScopes(
"https://www.googleapis.com/auth/cloud-platform",
),
}
}
func defaultCallOptions() *CallOptions {
retry := map[[2]string][]gax.CallOption{
{"default", "idempotent"}: {
gax.WithRetry(func() gax.Retryer {
return gax.OnCodes([]codes.Code{
codes.DeadlineExceeded,
codes.Unavailable,
}, gax.Backoff{
Initial: 100 * time.Millisecond,
Max: 60000 * time.Millisecond,
Multiplier: 1.3,
})
}),
},
}
return &CallOptions{
SyncRecognize: retry[[2]string{"default", "idempotent"}],
AsyncRecognize: retry[[2]string{"default", "idempotent"}],
}
}
// Client is a client for interacting with Speech.
type Client struct {
// The connection to the service.
conn *grpc.ClientConn
// The gRPC API client.
client speechpb.SpeechClient
// The call options for this service.
CallOptions *CallOptions
// The metadata to be sent with each request.
metadata map[string][]string
}
// NewClient creates a new speech service client.
//
// Service that implements Google Cloud Speech API.
func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
conn, err := transport.DialGRPC(ctx, append(defaultClientOptions(), opts...)...)
if err != nil {
return nil, err
}
c := &Client{
conn: conn,
client: speechpb.NewSpeechClient(conn),
CallOptions: defaultCallOptions(),
}
c.SetGoogleClientInfo("gax", gax.Version)
return c, nil
}
// Connection returns the client's connection to the API service.
func (c *Client) Connection() *grpc.ClientConn {
return c.conn
}
// 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.conn.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(name, version string) {
c.metadata = map[string][]string{
"x-goog-api-client": {fmt.Sprintf("%s/%s %s gax/%s go/%s", name, version, gapicNameVersion, gax.Version, runtime.Version())},
}
}
// SyncRecognize perform synchronous speech-recognition: receive results after all audio
// has been sent and processed.
func (c *Client) SyncRecognize(ctx context.Context, req *speechpb.SyncRecognizeRequest) (*speechpb.SyncRecognizeResponse, error) {
ctx = metadata.NewContext(ctx, c.metadata)
var resp *speechpb.SyncRecognizeResponse
err := gax.Invoke(ctx, func(ctx context.Context) error {
var err error
resp, err = c.client.SyncRecognize(ctx, req)
return err
}, c.CallOptions.SyncRecognize...)
if err != nil {
return nil, err
}
return resp, nil
}
// AsyncRecognize perform asynchronous speech-recognition: receive results via the
// google.longrunning.Operations interface. `Operation.response` returns
// `AsyncRecognizeResponse`.
func (c *Client) AsyncRecognize(ctx context.Context, req *speechpb.AsyncRecognizeRequest) (*longrunningpb.Operation, error) {
ctx = metadata.NewContext(ctx, c.metadata)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context) error {
var err error
resp, err = c.client.AsyncRecognize(ctx, req)
return err
}, c.CallOptions.AsyncRecognize...)
if err != nil {
return nil, err
}
return resp, nil
}