Question

我正在尝试在javascript代码中使用Watson文本到语音服务。但是，我一直在努力让它发挥作用。

如果我使用以下代码：

 $.ajax({
                url: 'https://stream.watsonplatform.net/text-to-speech/api/v1/synthesize',
                type: 'POST',
                headers: {"Content-Type": "application/json", "Accept": "audio/*", "Authorization": "Basic SomethingSomethingSomething=="},
                text: msgData.message[0].cInfo.text,
                output: 'output.wav',
                success: function() { 
                    console.log("text to voice complete"); 
                    var audio = new Audio('output.wav');
                    audio.play();
                }
            });

我明白了：

无法加载 https://stream.watsonplatform.net/text-to-speech/api/v1/synthesize：请求标头字段不允许授权预检响应中的Access-Control-Allow-Headers。

请注意，我可以很容易地从Restlet获得这样的请求。

但是，如果我使用：

$.ajax({
                        url: 'https://stream.watsonplatform.net/text-to-speech/api/v1/synthesize',
                        type: 'POST',
                        user: {"something": "something"},
                        headers: {"Content-Type": "application/json", "Accept": "audio/*"},
                        data: {"text": msgData.message[0].cInfo.body},
                        output: 'output.wav',
                        success: function() {
                                console.log("text to voice complete");
                                var audio = new Audio('output.wav');
                                audio.play();
                        }
                });

我明白了：

stream.watsonplatform.net/text-to-speech/api/v1/synthesize:1 POST https://stream.watsonplatform.net/text-to-speech/api/v1/synthesize 401 (Processed)
index.html:1 Failed to load https://stream.watsonplatform.net/text-to-speech/api/v1/synthesize: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://52.207.232.200' is therefore not allowed access. The response had HTTP status code 401.

Answer 1

看起来IBM Watson Text To Speech确实支持部分 CORS（在您的情况下需要）。请检查答案： Can't access IBM Watson API locally due to CORS on a Rails/AJAX App

此外，您还可以在那里找到明智的建议，告知您不在您的JavaScript代码中添加您的Watson凭据，而是使用令牌： https://console.bluemix.net/docs/services/watson/getting-started-tokens.html#tokens-for-authentication

当您在客户端工作时，也许尝试使用Watson的NPM模块或库（带示例）将是一个不错的选择：

https://www.npmjs.com/package/watson-speech

https://watson-speech.mybluemix.net/text-to-speech.html

希望这有帮助！

来自Java脚本的Watson Text to Speech的授权问题

1 个答案: