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我开始创建一个可以从中购买商品的APP。可能是这样的：在这里你可以看到Image，Name of product和Price。嗯，我有媒体链接一个Sign-in with Google用做Authentication Firebase和我存储它Firebase database，我想创建下面这个结构@Alex马莫向我建议：

Firebase-root
    |
    --- users
    |     |
    |     --- uid1
    |          |
    |          --- //user details (name, age, address, email and so on)
    |          |
    |          --- products
    |                |
    |                --- productId1 : true
    |                |
    |                --- productId2 : true
    |
    --- products
    |     |
    |     --- productId1
    |     |     |
    |     |     --- productName: "Apples"
    |     |     | …