/**
* Copyright 2015 IBM Corp. 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.
*/
'use strict';
/**
* @module watson-speech/text-to-speech/get-voices
*/
/**
Returns a promise that resolves to an array of objects representing the available voices. Example:
```js
[{
"name": "en-US_MichaelVoice",
"language": "en-US",
"customizable": true,
"gender": "male",
"url": "https://stream.watsonplatform.net/text-to-speech/api/v1/voices/en-US_MichaelVoice",
"description": "Michael: American English male voice."
},
//...
]
```
Requires fetch, pollyfill available at https://github.com/github/fetch
* @todo define format in @return statement
* @param {Object} options
* @param {String} options.token auth token
* @return {Promise.<T>}
*/
module.exports = function getVoices(options) {
if (!options || !options.token) {
throw new Error('Watson TextToSpeech: missing required parameter: options.token');
}
var reqOpts = {
credentials: 'omit',
headers: {
accept: 'application/json'
}
};
return fetch('https://stream.watsonplatform.net/text-to-speech/api/v1/voices?watson-token=' + options.token, reqOpts)
.then(function(response) {
return response.json();
})
.then(function(obj) {
return obj.voices;
});
};