如何使用admin sdk使用路径将文件上传到firebase的云存储？ [英] How can I upload files to firebase's cloud storage with a path using the admin sdk?

问题描述

在使用firebase admin sdk进行谷歌云存储时，解释如何使用路径上传文件的firebase文档并不多。

There's not much on the firebase documentation explaining how to upload files with a path when using the firebase admin sdk for google cloud storage.

我看过< a href =https://firebase.google.com/docs/storage/admin/start#use_a_default_bucket =nofollow noreferrer> firebase的文档，它指定我可以创建一个存储桶，我应该请参阅 google cloud文档以获取进一步的帮助。

I've looked at firebase's documentation and it specifies that I can create a bucket and that I should refer to google clouds documentation for further help.

然后他们还会展示如何创建另一个存储桶以及指向 API参考文档，它再次向您展示如何创建另一个存储桶，但至少这次有一个代码示例表可供参考。表格中的文件链接显示了一个回购示例已经

Then they also show how to create another storage bucket plus links leading to API Reference Documentation, which again shows you how to create another storage bucket, but at least this time there is a table of code examples to refer from. The files link at the table shows a repo example that has

// Uploads a local file to the bucket
  storage
    .bucket(bucketName)
    .upload(filename)
    .then(() => {
      console.log(`${filename} uploaded to ${bucketName}.`);
    })
    .catch(err => {
      console.error('ERROR:', err);
    });

这很有用，因为我可以使用管理员上传文件。

which was helpful as I was able to upload a file with admin using it.

var admin = require("firebase-admin");
var serviceAccount = require("path/to/serviceAccountKey.json");
admin.initializeApp({
    credential: admin.credential.cert(serviceAccount),
    storageBucket: "<BUCKET_NAME>.appspot.com"
});
const bucket = admin.storage().bucket();
bucket.upload('local/file/path').then(data => {
    console.log('upload success');
}).catch(err => {
    console.log('error uploading to storage', err);
});

虽然我仍然对如何指定路径感到茫然，因为这只是把它放在我的firebase存储桶的顶层。有人知道如何用api更深入地指定嵌套文件的路径吗？

Although I'm still at a loss with how to specify a path as this just puts it at the top level of my firebase storage bucket. Anyone know how I can specify a path to nest my files deeper with the api?

推荐答案

请参考 upload（）方法的API文档。您可以看到上传采用了第二个名为options的参数来描述上传。 options对象可能有一个名为 destination 的属性来描述文件的上传位置。

Please refer to the API documentation for the upload() method. You can see that upload takes a second parameter called "options" to describe the upload. The options object may have a property called destination to describe where the file should be uploaded.

（字符串或文件）

(string or File)

保存文件的位置。如果给定一个字符串，该文件将使用字符串作为文件名上传到存储桶的
。当给出
File对象时，您的本地文件将上传到File对象的
存储桶并在File对象的名称下。最后，当这个参数省略
时，文件将使用
本地文件的名称或相对于其域的URL的路径上传到您的存储桶。

The place to save your file. If given a string, the file will be uploaded to the bucket using the string as a filename. When given a File object, your local file will be uploaded to the File object's bucket and under the File object's name. Lastly, when this argument is omitted, the file is uploaded to your bucket using the name of the local file or the path of the url relative to it's domain.

所以，你可以像这样使用它：

So, you can use it like this:

bucket.upload('local/file/path', { destination: 'location/in/bucket' })

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