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@zenweb/schedule

v5.5.1

Published

Zenweb Schedule module

Readme

ZenWeb Schedule module

ZenWeb

定时任务模块

依赖模块

  • @zenweb/inject
  • @zenweb/router

安装

npm i @zenweb/schedule

配置

import modSchedule from '@zenweb/schedule';
// ...
app.setup(modSchedule());
// ...

使用

import { Schedule } from '@zenweb/schedule';

export class EchoScheduler {
  @Schedule('*/1 * * * * *')
  echo() {
    console.log('task echo');
    return 'ok';
  }
}

配置项

| 配置项 | 类型 | 默认值 | 功能 | | ----- | --- | ----- | ---- | | paths | string[] | ['./app/schedule'] | 定时任务控制器加载目录 | patterns | string | **/*.{ts,js} | 定时任务控制器文件匹配规则 | disabled | boolean | false | 是否禁用定时器,可以通过环境变量 ZENWEB_SCHEDULE_DISABLED=1 控制

Core 挂载项

| 挂载项 | 类型 | 功能 | | ----- | --- | ---- | | scheduleRegister | ScheduleRegister | ScheduleRegister 实例

部署注意要点

如果使用多实例部署(例如k8s横向扩展),注意定时任务重复执行问题(因为每个实例都维护着自己的定时任务)

可以分为两个类型实例部署:

  • 一个用于请求响应,带有横向扩展,使用环境变量 ZENWEB_SCHEDULE_DISABLED=1 关闭定时任务
  • 一个用于定时任务,单个实例部署,避免重复执行问题