上传MIME类型

Question

如何为正在上载的文件指定mime类型。下面是nodejs示例https://cloud.google.com/storage/docs/object-basics#storage-upload-object-nodejs

```javascript

函数uploadFile (bucketName，fileName，回调){

//实例化客户端

const storageClient = Storage()；

//引用现有的桶，例如“我的-桶”

const = storageClient.bucket(bucketName)；

//将本地文件上载到桶中，例如"./ local /path/ to /file.txt“

bucket.upload(fileName，(err，file) => {

if (err) {

  callback(err);

  return;

}

console.log(`File ${file.name} uploaded.`);

callback();

})；

}

我总是违约

应用程序/八位流

Answer 1

我自己找到了答案。您需要将此类元数据放入选项中。在任何文件里都找不到。

function uploadFile (bucketName, fileName, callback) {
  // Instantiates a client
  const storageClient = Storage();

  // References an existing bucket, e.g. "my-bucket"
  const bucket = storageClient.bucket(bucketName);

  // STARTING FROM HERE
  const options = {
    metadata: {
      contentType: 'image/jpeg',
    },
  }
  // TO HERE

  // Uploads a local file to the bucket, e.g. "./local/path/to/file.txt"
  bucket.upload(fileName, options, (err, file) => {
    if (err) {
      callback(err);
      return;
    }

    console.log(`File ${file.name} uploaded.`);
    callback();
  });
}