Google云端存储文件上传错误：“无法在ApiError处解析JSON响应”

Question

问题

我正在与Google Text To Speech (TTS)合作，以便将生成的音频文件保存到Google Cloud Storage (GCS)。我可以将 TTS 的结果成功写入文件，因为我可以在日志中看到结果。问题是我无法访问已写入的文件并将该文件上传到 GCS 。

我正在使用path.join(os.tmpdir(), fileName)尝试检索以functions-samples/quickstarts/thumbnails作为参考写入的文件，因为它会将文件上传到 GCP here

错误

Error: Cannot parse JSON response
    at ApiError (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/build/src/util.js:43:9)
    at Util.parseHttpRespBody (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/build/src/util.js:167:42)
    at Util.handleResp (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/build/src/util.js:116:117)
    at retryRequest (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/build/src/util.js:403:22)
    at onResponse (/user_code/node_modules/@google-cloud/storage/node_modules/retry-request/index.js:200:7)
    at /user_code/node_modules/@google-cloud/storage/node_modules/teeny-request/build/src/index.js:158:17
    at process._tickDomainCallback (internal/process/next_tick.js:135:7)

配置

const admin = require('firebase-admin');
const functions = require('firebase-functions');
const path = require('path');
const os = require('os');
const {Storage} = require('@google-cloud/storage');
const projectId = 'coinverse-media-staging';
const storage = new Storage({
  projectId: projectId,
});
const fs = require('fs');
const textToSpeech = require('@google-cloud/text-to-speech');

const client = new textToSpeech.TextToSpeechClient();

admin.initializeApp();

const text = 'Hello, world!';
const request = {
    input: {text: text},
    // Select the language and SSML Voice Gender (optional)
    voice: {languageCode: 'en-US', ssmlGender: 'NEUTRAL'},
    // Select the type of audio encoding
    audioConfig: {audioEncoding: 'MP3'},
}; 

exports.getAudiocast = functions.https.onCall((data, context) => {


    var bucket = storage.bucket('gs://[project-name].appspot.com/content/feeds/en-audio/');

    client.synthesizeSpeech(request, (err, response) => {
        if (err) {
          console.error('ERROR:', err);
          return;
        }

        const fileName = (data.id + '.mp3');

        const tempFile = path.join(os.tmpdir(), fileName);

        var mp3File = fs.writeFile(tempFile, response.auioContent, 'binary', err => {
          if (err) {
            console.error('ERROR:', err);
            return;
          }
          console.log('Audio content written to file: ' + data.id + '.mpeg');
        });

        var filePathToUpload = path.join(os.tmpdir(), fileName)

        bucket.upload(filePathToUpload), function(err, file) {
          if (!err) {
            console.log('Audiocast uploaded!');
          } else {
            console.error('Audiocast upload error: ' + err.message);
          }
        };

    });

    return {
        filePath: "[somePath]",
    };
});

尝试的解决方案

1。写入Cloud Function中的/tmp目录。

代码

    const fileName = ('/tmp/' + data.id + '.mp3');

    fs.writeFile(fileName, response.auioContent, 'binary', err => {
      if (err) {
        console.error('ERROR:', err);
        return;
      }
      console.log('Audio content written to file: ' + fileName);
    });

    bucket.upload(fileName), function(err, file) {
      if (!err) {
        console.log('Audiocast uploaded!');
      } else {
        console.error('Audiocast upload error: ' + err.message);
      }
    };

错误

与原件相同。

2。使用Writeable Stream

将二进制音频内容写入文件

代码

const fileName = ('/tmp/' + data.id + '.mp3');
var wstream = fs.createWriteStream(fileName);
wstream.on('finish', function () {
  console.log('file has been written');
  bucket.upload(fileName), function(err, file) {
    if (!err) {
      console.log('Audiocast uploaded!');
    } else {
      console.error('Audiocast upload error: ' + err.message);
    }
  };
});
wstream.write(response.audioContent);
wstream.end();

错误

与原件相同。

后续步骤

研究如何将二进制音频内容写入临时文件还是本地文件。