错误500：尝试使用GAE Flexible将文件上传到GCS时出现ApiError

Question

我正在尝试使用Google App Engine flexible部署的API，该API可将文件上传到Google Storage。当我使用localhost运行API时，效果很好。但是使用已部署的应用程序，我会收到此错误：

ApiError: Error during request.
at Object.parseHttpRespBody (/srv/node_modules/@google-cloud/common/src/util.js:187:32)
at Object.handleResp (/srv/node_modules/@google-cloud/common/src/util.js:131:18)

我向服务帐户授予了存储管理员权限，但同样存在错误。

export function toStorage(request: Request, response: Response, next: NextFunction) {
  const storage = Storage({
    projectId: process.env.GCLOUD_PROJECT
  })
  // A bucket is a container for objects (files).
  const bucket = storage.bucket(process.env.OUTPUT)
  console.log(process.env.GCLOUD_PROJECT)
  console.log(process.env.OUTPUT)
  if (!request.file) {
    response.status(400).send('No file uploaded.')
    return
  }

  // Create a new blob in the bucket and upload the file data.
  const blob = bucket.file(request.file.originalname)
  const blobStream = blob.createWriteStream({
    resumable: false
  })

  blobStream.on('error', (err: Error) => {
    next(err)
  })

  blobStream.on('finish', () => {
    // The public URL can be used to directly access the file via HTTP.
    const publicUrl = format(`https://storage.googleapis.com/${bucket.name}/${blob.name}`)
    sendResponse(response, publicUrl)
  })

  blobStream.end(request.file.buffer)

}

首先感谢支持帮助。