如何将图像从Firebase存储传递到Facebook Marketing API？

Question

有人可以帮助我理解如何从Firebase的Node / Express / Cloud Functions下载图像。

因此，现在写，我只能获取一个包含有关Firebase存储中我的图像的信息的obj（通过getMetadata();）

let imageInformation = await getImage(domain, thumbID)

哪里控制台日志imageInformation 会

[ { kind: 'storage#object',
    id: 'functions-firebase-43a59.appspot.com/outlook.com/assets/d547b001-f5bf-b601-c8b1-4bdeb850995e/1551322039811693',
    selfLink: 'https://www.googleapis.com/storage/v1/b/functions-firebase-43a59.appspot.com/o/outlook.com%2Fassets%2Fd547b001-f5bf-b601-c8b1-4bdeb850995e',
    name: 'outlook.com/assets/d547b001-f5bf-b601-c8b1-4bdeb850995e',
    bucket: 'functions-firebase-43a59.appspot.com',
    generation: '1551322039811693',
    metageneration: '1',
    contentType: 'image/png',
    timeCreated: '2019-02-28T02:47:19.811Z',
    updated: '2019-02-28T02:47:19.811Z',
    storageClass: 'STANDARD',
    timeStorageClassUpdated: '2019-02-28T02:47:19.811Z',
    size: '162416',
    md5Hash: '0nES96sSLfY+8nvoLAdjXQ==',
    mediaLink: 'https://www.googleapis.com/download/storage/v1/b/functions-firebase-43a59.appspot.com/o/outlook.com%2Fassets%2Fd547b001-f5bf-b601-c8b1-4bdeb850995e?generation=1551322039811693&alt=media',
    contentDisposition: 'inline; filename*=utf-8\'\'d547b001-f5bf-b601-c8b1-4bdeb850995e',
    metadata: 
     { firebaseStorageDownloadTokens: '78cc9227-a8e7-4797-9929-37983390ad86' },
    crc32c: 'c5GAZw==',
    etag: 'CO389fi03eACEAE=' },
  { kind: 'storage#object',
    id: 'functions-firebase-43a59.appspot.com/outlook.com/assets/d547b001-f5bf-b601-c8b1-4bdeb850995e/1551322039811693',
    selfLink: 'https://www.googleapis.com/storage/v1/b/functions-firebase-43a59.appspot.com/o/outlook.com%2Fassets%2Fd547b001-f5bf-b601-c8b1-4bdeb850995e',
    name: 'outlook.com/assets/d547b001-f5bf-b601-c8b1-4bdeb850995e',
    bucket: 'functions-firebase-43a59.appspot.com',
    generation: '1551322039811693',
    metageneration: '1',
    contentType: 'image/png',
    timeCreated: '2019-02-28T02:47:19.811Z',
    updated: '2019-02-28T02:47:19.811Z',
    storageClass: 'STANDARD',
    timeStorageClassUpdated: '2019-02-28T02:47:19.811Z',
    size: '162416',
    md5Hash: '0nES96sSLfY+8nvoLAdjXQ==',
    mediaLink: 'https://www.googleapis.com/download/storage/v1/b/functions-firebase-43a59.appspot.com/o/outlook.com%2Fassets%2Fd547b001-f5bf-b601-c8b1-4bdeb850995e?generation=1551322039811693&alt=media',
    contentDisposition: 'inline; filename*=utf-8\'\'d547b001-f5bf-b601-c8b1-4bdeb850995e',
    metadata: 
     { firebaseStorageDownloadTokens: '78cc9227-a8e7-4797-9929-37983390ad86' },
    crc32c: 'c5GAZw==',
    etag: 'CO389fi03eACEAE=' } ]

我想实现什么？

在facebook Marketing Api中，要创建带有图片的广告，我们需要为其提供图片路径

curl \
  -F 'filename=@<IMAGE_PATH>' \
  -F 'access_token=<ACCESS_TOKEN>' \
  https://graph.facebook.com/v2.11/act_<AD_ACCOUNT_ID>/adimages

有人可以帮助我弄清楚如何下载图像路径或将图像路径传递到Facebook吗？