每次Firestore限制写入权限

问题描述：

在firestore安全设置中，您可以设置写入/读取数据的条件.

In the firestore security settings you can set conditions for writing/reading data.

目前我有这件作品:

service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read: if request.auth != null && request.time < 
                resource.data.timeCreated + duration.value(1, 'h');
      allow write: if request.auth != null;
    }
  }
}

现在我想限制写作；用户只能每5分钟发送一次数据.我该如何实现?

Now I want to limit the writing; a user should only be able to send data every 5 minutes. How can I achieve this?

答

没有本机的方法.

对于未经登录的用户，您不能以任何不被忽略的方式使用.不过，您可以使用Cloud Functions为已登录的用户实现此目的.

You cannot for non-signed in users in any way that is not trivially bypassed. You could use Cloud Functions to achieve this for signed in users though.

每个用户都有一个下次可以写的配置文件，以及下一个要写的文档的ID.

Each user has a profile with next time they can write, along with the id of the document to write next.

在写入时使用规则检查ID是否不存在，并且> =允许的时间
在写入时使用Cloud Functions以新的允许时间和下一次写入的唯一ID更新用户配置文件

每次Firestore限制写入权限

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