Firebase 实时数据库动态规则

Question

{
"rules": {
"Users": {
  "$user_id": {
    // grants write access to the owner of this user account
    // whose uid must exactly match the key ($user_id)
    ".write": "$user_id === auth.uid"
  }
}
"BUSINESS NAME HERE": {
".write": "root.child('Users').child(auth.uid).child('BUSINESS NAME HERE').child('Permissions').val() === "MODERATOR""
}
}
}

当用户访问企业信息时，他们使用企业名称访问他们需要的密钥中的子项。正如上面输入的那样，我如何应用它来动态地使用他们输入的任何企业名称（对不起，如果这对于 firebase 规则来说是非常基本的即时消息）。感谢您的帮助！！！

Answer 1

您使用所谓的美元变量来识别可变部分：

{
    "rules": {
        "Users": {
            "$user_id": {
                // grants write access to the owner of this user account
                // whose uid must exactly match the key ($user_id)
                ".write": "$user_id === auth.uid"
            }
        }
        "$businessName": {
            ".write": "root.child('Users').child(auth.uid).child($businessName).child('Permissions').val() === 'MODERATOR'"
        }
    }
}