使用getFiles或deleteFiles找不到Firebase存储项

Question

我正在使用Firebase函数删除文件，当删除一个firestore项目时，每个firestore条目都有两个文件：image.jpg和image_thumb.jpg

我试图使用bucket前缀删除这两个文件，但没有找到文件，我尝试在删除之前使用getFiles方法查看项目，但也没有返回任何结果。

const bucket = admin.storage().bucket()
const not_working = await bucket.getFiles({prefix: `photos/${userId}/${photoId}`})
const not_working = await bucket.deleteFiles({prefix: `photos/${userId}/${photoId}`})

如果我删除${photoId}引用并只查找文件夹，我会得到正确的结果

const bucket = admin.storage().bucket()
const working = await bucket.getFiles({prefix: `photos/${userId}/`})

这将返回以下数据

[
>    [
>      File {
>        _events: [Object: null prototype] {},
>        _eventsCount: 0,
>        _maxListeners: undefined,
>        metadata: [Object],
>        baseUrl: '/o',
>        parent: [Bucket],
>        id: 'photos%2FkLxGzah8zc7Vbrl0c3iLic8tkqH2%2Fcad2ce98-dfa7-4611-9a88-913328ab4590.png',
>        createMethod: undefined,
>        methods: [Object],
>        interceptors: [],
>        pollIntervalMs: undefined,
>        create: undefined,
>        bucket: [Bucket],
>        storage: [Storage],
>        kmsKeyName: undefined,
>        userProject: undefined,
>        name: 'photos/kLxGzah8zc7Vbrl0c3iLic8tkqH2/cad2ce98-dfa7-4611-9a88-913328ab4590.png',
>        acl: [Acl],
>        instanceRetryValue: true,
>        instancePreconditionOpts: undefined,
>        [Symbol(kCapture)]: false
>      },
>      File {
>        _events: [Object: null prototype] {},
>        _eventsCount: 0,
>        _maxListeners: undefined,
>        metadata: [Object],
>        baseUrl: '/o',
>        parent: [Bucket],
>        id: 'photos%2FkLxGzah8zc7Vbrl0c3iLic8tkqH2%2Fcad2ce98-dfa7-4611-9a88-913328ab4590_thumb.png',
>        createMethod: undefined,
>        methods: [Object],
>        interceptors: [],
>        pollIntervalMs: undefined,
>        create: undefined,
>        bucket: [Bucket],
>        storage: [Storage],
>        kmsKeyName: undefined,
>        userProject: undefined,
>        name: 'photos/kLxGzah8zc7Vbrl0c3iLic8tkqH2/cad2ce98-dfa7-4611-9a88-913328ab4590_thumb.png',
>        acl: [Acl],
>        instanceRetryValue: true,
>        instancePreconditionOpts: undefined,
>        [Symbol(kCapture)]: false
>      }
>    ]
>  ]

Answer 1

如果我删除${photoId}引用并只查找文件夹获得正确的结果

这实际上是预期的行为，如云存储文档中所示(查看"Node.js"选项卡(：不应在prefix值中包括文件名的最后一部分(即最后一个/之后的部分，或者，如果我们使用目录树范式，则不应包括父目录的文件名本身(。

代码示例包含以下解释：

/**
* This can be used to list all blobs in a "folder", e.g. "public/".
*
* The delimiter argument can be used to restrict the results to only the
* "files" in the given "folder". Without the delimiter, the entire tree under
* the prefix is returned. For example, given these blobs:
*
*   /a/1.txt
*   /a/b/2.txt
*
* If you just specify prefix = 'a/', you'll get back:
*
*   /a/1.txt
*   /a/b/2.txt
*
* However, if you specify prefix='a/' and delimiter='/', you'll get back:
*
*   /a/1.txt
*/