限制子节点数量

Firebase
Made by Firebase

将节点数限制为指定的实时数据库路径中的指定最大计数。

此扩展程序的运作方式

Use this extension to control the maximum number of nodes stored in a Firebase Realtime Database path.

If the number of nodes in your specified Realtime Database path exceeds the specified max count, this extension deletes the oldest nodes first until there are the max count number of nodes remaining.

Additional setup

Before installing this extension, make sure that you've set up a Realtime Database instance in your Firebase project.

Billing

To install an extension, your project must be on the Blaze (pay as you go) plan

  • You will be charged a small amount (typically around $0.01/month) for the Firebase resources required by this extension (even if it is not used).
  • This extension uses other Firebase and Google Cloud Platform services, which have associated charges if you exceed the service’s free tier:
  • Cloud Functions (Node.js 10+ runtime. See FAQs)
  • Firebase Realtime Database

如何安装此扩展程序

使用 Firebase 控制台

要安装和管理扩展程序,您可以使用 Firebase 控制台。

使用控制台安装

使用 Firebase CLI

要安装和管理扩展程序,您还可以使用 Firebase CLI:

步骤 1:运行以下 npm 命令来安装 CLI 或将 CLI 更新到最新版本。

npm install -g firebase-tools
不能运行?请参阅 Firebase CLI 参考文档或者更改您的 npm 权限

步骤 2:运行以下命令来安装此扩展程序

firebase ext:install rtdb-limit-child-nodes --project=projectId_or_alias
支持
实时数据库
作者
许可
Apache-2.0
版本
0.1.2