试乘语音到文本异步操作-无结果

我正在尝试语音到文本api的长期识别方法( https://cloud.google.com/speech-to-text/docs/reference/rest/v1p1beta1/speech/longrunningrecognize )并指定了所有需要的参数,例如:

{
  "audio": 
  {
    "uri": "gs://xyz/blabla.mp3"
  },
  "config": 
  {
    "languageCode": "en-US",
    "encoding": "AMR_WB",
    "sampleRateHertz": 16000
  }
}

这返回了我可以用get操作使用的名称( https://cloud.google.com/speech-to-text/docs/reference/rest/v1/operations/get )

文档中说get返回的“operation”json对象将包含我在响应中没有看到的参数。

例如,没有“完成”节点。相反,这是我得到的全部:

{
  "name": "xxxxx",
  "metadata": {
    "@type": "type.googleapis.com/google.cloud.speech.v1.LongRunningRecognizeMetadata",
    "progressPercent": 100,
    "startTime": "2018-06-08T14:40:54.663240Z",
    "lastUpdateTime": "2018-06-08T15:05:01.161911Z"
  }
}

知道为什么吗?至少应该返回一个状态,也许是一个错误( https://cloud.google.com/speech-to-text/docs/reference/rest/v1p1beta1/operations#Operation )?

更新: 现在我得到了结果。但是,服务器有问题吗?只是暂时的小故障吗?

{
  "name": "xxxxx",
  "metadata": {
    "@type": "http://type.googleapis.com/google.cloud.speech.v1.LongRunningRecognizeMetadata …",
    "progressPercent": 100,
    "startTime": "2018-06-08T14:40:54.663240Z",
    "lastUpdateTime": "2018-06-08T15:05:01.161911Z"
  },
  "done": true,
  "error": {
    "code": 13,
    "message": "Server unavailable, please try again later."
  }
}