使用text和user_id的组合在位置上设置规则

Question

我的数据库具有以下结构：

users
 User_ddac15a6-1890-43d8-9bfb-a13e9b99499e
 ...

用户的文件夹格式为'User _'+ $ user_id

我正在尝试设置如下规则：

{
  "rules": {
    "users": {
      "User_$user_id": {
        // grants write access to the owner of this user account
        // whose uid must exactly match the key ($user_id)
        ".read": "$user_id === auth.uid",
        ".write": "$user_id === auth.uid"
      }
    }
  }
}

但是当我试图保存规则时，我得到了：

9:7: Key names can't contain ".", "#", "$", "/", "[", or "]" (unbound names start with "$")

如何在这样的文件夹名称结构上设置安全规则？

Answer 1

您不能将$符号放在规则名称的中间，它必须在开头。但是你可以得到这样的结果：

{
  "rules": {
    "users": {
      "$user_id": {
        // grants write access to the owner of this user account
        // whose uid must exactly match the key ($user_id)
        ".read": "$user_id === ('User_'+auth.uid)",
        ".write": "$user_id === ('User_'+auth.uid)"
      }
    }
  }
}