Firebase存储和数据库

Question

我有一个Firebase数据库，我可以从我的Angular2应用程序访问：

Lafayette_apartments
description:
  "description"
link:
  "/lafayette-apts"
title:
  "Lafayette Apartments"
url:
  "https://s3.amazonaws.com/gadaphotos/photos/port..."
Scotchbrook_apartments
description:
  "This is a real estate photography taken for Sco..."
link:
  "/scotchbrook"
title:
  "Scotchbrook Apartments"
url:
  "https://s3.amazonaws.com/gadaphotos/photos/port..."
alden_park
new_port_village
description:
  "description"
link:
  "/new-port-village"
title:
  "New Port Village"
url:
  "https://s3.amazonaws.com/gadaphotos/photos/port..."

我在同一个Firebase存储空间中还有几个包含照片的文件夹。

Name    Size    Type    Last modified
 alden_park/
—
lafayette_apts/
—
Scotchbrook_apartments/

如何将每个文件夹的名称以及数据库中文件夹中的照片网址列出到每个相应的内容？