"use strict";
// Copyright 2019 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.
//
// ** This file is automatically generated by gapic-generator-typescript. **
// ** https://github.com/googleapis/gapic-generator-typescript **
// ** All changes to this file may be overwritten. **
Object.defineProperty(exports, "__esModule", { value: true });
const gax = require("google-gax");
const path = require("path");
const gapicConfig = require("./speech_client_config.json");
const version = require('../../../package.json').version;
/**
* Service that implements Google Cloud Speech API.
* @class
* @memberof v1
*/
class SpeechClient {
/**
* Construct an instance of SpeechClient.
*
* @param {object} [options] - The configuration object. See the subsequent
* parameters for more details.
* @param {object} [options.credentials] - Credentials object.
* @param {string} [options.credentials.client_email]
* @param {string} [options.credentials.private_key]
* @param {string} [options.email] - Account email address. Required when
* using a .pem or .p12 keyFilename.
* @param {string} [options.keyFilename] - Full path to the a .json, .pem, or
* .p12 key downloaded from the Google Developers Console. If you provide
* a path to a JSON file, the projectId option below is not necessary.
* NOTE: .pem and .p12 require you to specify options.email as well.
* @param {number} [options.port] - The port on which to connect to
* the remote host.
* @param {string} [options.projectId] - The project ID from the Google
* Developer's Console, e.g. 'grape-spaceship-123'. We will also check
* the environment variable GCLOUD_PROJECT for your project ID. If your
* app is running in an environment which supports
* {@link https://developers.google.com/identity/protocols/application-default-credentials Application Default Credentials},
* your project ID will be detected automatically.
* @param {function} [options.promise] - Custom promise module to use instead
* of native Promises.
* @param {string} [options.apiEndpoint] - The domain name of the
* API remote host.
*/
constructor(opts) {
this._descriptors = { page: {}, stream: {}, longrunning: {} };
this._terminated = false;
// Ensure that options include the service address and port.
const staticMembers = this.constructor;
const servicePath = opts && opts.servicePath
? opts.servicePath
: opts && opts.apiEndpoint
? opts.apiEndpoint
: staticMembers.servicePath;
const port = opts && opts.port ? opts.port : staticMembers.port;
if (!opts) {
opts = { servicePath, port };
}
opts.servicePath = opts.servicePath || servicePath;
opts.port = opts.port || port;
opts.clientConfig = opts.clientConfig || {};
const isBrowser = typeof window !== 'undefined';
if (isBrowser) {
opts.fallback = true;
}
// If we are in browser, we are already using fallback because of the
// "browser" field in package.json.
// But if we were explicitly requested to use fallback, let's do it now.
const gaxModule = !isBrowser && opts.fallback ? gax.fallback : gax;
// Create a `gaxGrpc` object, with any grpc-specific options
// sent to the client.
opts.scopes = this.constructor.scopes;
const gaxGrpc = new gaxModule.GrpcClient(opts);
// Save the auth object to the client, for use by other methods.
this.auth = gaxGrpc.auth;
// Determine the client header string.
const clientHeader = [`gax/${gaxModule.version}`, `gapic/${version}`];
if (typeof process !== 'undefined' && 'versions' in process) {
clientHeader.push(`gl-node/${process.versions.node}`);
}
else {
clientHeader.push(`gl-web/${gaxModule.version}`);
}
if (!opts.fallback) {
clientHeader.push(`grpc/${gaxGrpc.grpcVersion}`);
}
if (opts.libName && opts.libVersion) {
clientHeader.push(`${opts.libName}/${opts.libVersion}`);
}
// Load the applicable protos.
// For Node.js, pass the path to JSON proto file.
// For browsers, pass the JSON content.
const nodejsProtoPath = path.join(__dirname, '..', '..', 'protos', 'protos.json');
const protos = gaxGrpc.loadProto(opts.fallback ? require('../../protos/protos.json') : nodejsProtoPath);
// Some of the methods on this service provide streaming responses.
// Provide descriptors for these.
this._descriptors.stream = {
streamingRecognize: new gaxModule.StreamDescriptor(gax.StreamType.BIDI_STREAMING),
};
// This API contains "long-running operations", which return a
// an Operation object that allows for tracking of the operation,
// rather than holding a request open.
const protoFilesRoot = opts.fallback
? gaxModule.protobuf.Root.fromJSON(require('../../protos/protos.json'))
: gaxModule.protobuf.loadSync(nodejsProtoPath);
this.operationsClient = gaxModule
.lro({
auth: this.auth,
grpc: 'grpc' in gaxGrpc ? gaxGrpc.grpc : undefined,
})
.operationsClient(opts);
const longRunningRecognizeResponse = protoFilesRoot.lookup('.google.cloud.speech.v1.LongRunningRecognizeResponse');
const longRunningRecognizeMetadata = protoFilesRoot.lookup('.google.cloud.speech.v1.LongRunningRecognizeMetadata');
this._descriptors.longrunning = {
longRunningRecognize: new gaxModule.LongrunningDescriptor(this.operationsClient, longRunningRecognizeResponse.decode.bind(longRunningRecognizeResponse), longRunningRecognizeMetadata.decode.bind(longRunningRecognizeMetadata)),
};
// Put together the default options sent with requests.
const defaults = gaxGrpc.constructSettings('google.cloud.speech.v1.Speech', gapicConfig, opts.clientConfig || {}, { 'x-goog-api-client': clientHeader.join(' ') });
// Set up a dictionary of "inner API calls"; the core implementation
// of calling the API is handled in `google-gax`, with this code
// merely providing the destination and request information.
this._innerApiCalls = {};
// Put together the "service stub" for
// google.cloud.speech.v1.Speech.
this.speechStub = gaxGrpc.createStub(opts.fallback
? protos.lookupService('google.cloud.speech.v1.Speech')
: // tslint:disable-next-line no-any
protos.google.cloud.speech.v1.Speech, opts);
// Iterate over each of the methods that the service provides
// and create an API call method for each.
const speechStubMethods = [
'recognize',
'longRunningRecognize',
'streamingRecognize',
];
for (const methodName of speechStubMethods) {
const innerCallPromise = this.speechStub.then(stub => (...args) => {
if (this._terminated) {
return Promise.reject('The client has already been closed.');
}
return stub[methodName].apply(stub, args);
}, (err) => () => {
throw err;
});
const apiCall = gaxModule.createApiCall(innerCallPromise, defaults[methodName], this._descriptors.page[methodName] ||
this._descriptors.stream[methodName] ||
this._descriptors.longrunning[methodName]);
this._innerApiCalls[methodName] = (argument, callOptions, callback) => {
return apiCall(argument, callOptions, callback);
};
}
}
/**
* The DNS address for this API service.
*/
static get servicePath() {
return 'speech.googleapis.com';
}
/**
* The DNS address for this API service - same as servicePath(),
* exists for compatibility reasons.
*/
static get apiEndpoint() {
return 'speech.googleapis.com';
}
/**
* The port for this API service.
*/
static get port() {
return 443;
}
/**
* The scopes needed to make gRPC calls for every method defined
* in this service.
*/
static get scopes() {
return ['https://www.googleapis.com/auth/cloud-platform'];
}
/**
* Return the project ID used by this class.
* @param {function(Error, string)} callback - the callback to
* be called with the current project Id.
*/
getProjectId(callback) {
if (callback) {
this.auth.getProjectId(callback);
return;
}
return this.auth.getProjectId();
}
/**
* Performs synchronous speech recognition: receive results after all audio
* has been sent and processed.
*
* @param {Object} request
* The request object that will be sent.
* @param {google.cloud.speech.v1.RecognitionConfig} request.config
* Required. Provides information to the recognizer that specifies how to
* process the request.
* @param {google.cloud.speech.v1.RecognitionAudio} request.audio
* Required. The audio data to be recognized.
* @param {object} [options]
* Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
* @returns {Promise} - The promise which resolves to an array.
* The first element of the array is an object representing [RecognizeResponse]{@link google.cloud.speech.v1.RecognizeResponse}.
* The promise has a method named "cancel" which cancels the ongoing API call.
*/
recognize(request, optionsOrCallback, callback) {
request = request || {};
let options;
if (typeof optionsOrCallback === 'function' && callback === undefined) {
callback = optionsOrCallback;
options = {};
}
else {
options = optionsOrCallback;
}
options = options || {};
return this._innerApiCalls.recognize(request, options, callback);
}
/**
* Performs bidirectional streaming speech recognition: receive results while
* sending audio. This method is only available via the gRPC API (not REST).
*
* @param {object} [options]
* Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
* @returns {Stream}
* An object stream which is both readable and writable. It accepts objects
* representing [StreamingRecognizeRequest]{@link google.cloud.speech.v1.StreamingRecognizeRequest} for write() method, and
* will emit objects representing [StreamingRecognizeResponse]{@link google.cloud.speech.v1.StreamingRecognizeResponse} on 'data' event asynchronously.
*/
_streamingRecognize(options) {
options = options || {};
return this._innerApiCalls.streamingRecognize(options);
}
/**
* Performs asynchronous speech recognition: receive results via the
* google.longrunning.Operations interface. Returns either an
* `Operation.error` or an `Operation.response` which contains
* a `LongRunningRecognizeResponse` message.
* For more information on asynchronous speech recognition, see the
* [how-to](https://cloud.google.com/speech-to-text/docs/async-recognize).
*
* @param {Object} request
* The request object that will be sent.
* @param {google.cloud.speech.v1.RecognitionConfig} request.config
* Required. Provides information to the recognizer that specifies how to
* process the request.
* @param {google.cloud.speech.v1.RecognitionAudio} request.audio
* Required. The audio data to be recognized.
* @param {object} [options]
* Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
* @returns {Promise} - The promise which resolves to an array.
* The first element of the array is an object representing [Operation]{@link google.longrunning.Operation}.
* The promise has a method named "cancel" which cancels the ongoing API call.
*/
longRunningRecognize(request, optionsOrCallback, callback) {
request = request || {};
let options;
if (typeof optionsOrCallback === 'function' && callback === undefined) {
callback = optionsOrCallback;
options = {};
}
else {
options = optionsOrCallback;
}
options = options || {};
return this._innerApiCalls.longRunningRecognize(request, options, callback);
}
/**
* Terminate the GRPC channel and close the client.
*
* The client will no longer be usable and all future behavior is undefined.
*/
close() {
if (!this._terminated) {
return this.speechStub.then(stub => {
this._terminated = true;
stub.close();
});
}
return Promise.resolve();
}
}
exports.SpeechClient = SpeechClient;
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