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@fangcha/resque

v1.8.0

Published

Node resque.

Downloads

72

Readme

node-resque

一些设计

  • 这是一个轻量级的任务处理模块,基本设定与 resque/resque 一致,可通过 resque-web 进行任务管理
  • 采用 redis blpop 的方式等待任务而非轮询
  • 目前单个程序只支持串行处理任务,可通过多个程序达到并发效果;后续将直接支持任务并发

运行要求

  • node
  • redis

安装

npm install @fangcha/resque

使用

配置示例

const config = {
  logFile: `${__dirname}/run.local/resque.log`,
  pidFile: `${__dirname}/run.local/resque.pid`,
  redisConfig: {
    redisHost: '127.0.0.1',
    redisPort: 6379,
  },
  moduleMapFile: `${__dirname}/task-map.js`,
  queues: [
    'TaskQueueDemo',
  ]
}

module.exports = config

定义启动脚本

脚本示例,参考 launcher-demo,可保存为 ./node-resque

#!/usr/bin/env node

const { FCLauncher } = require('@fangcha/resque')

const launchFile = process.argv[1]
const cmd = process.argv[2] ? process.argv[2] : ''

const launcher = new FCLauncher(launchFile, config)
launcher.handle(cmd)
./node-resque start

启动后,将根据 config 配置生成 pid 文件及日志文件

命令支持: start / stop / restart / status

定义任务

  • 任务必须为一个继承于 IResqueTask 的类,并实现 async perform(params) 方法,参考 TaskDemo
  • 需要在 config.moduleMapFile 中添加对自定义任务的引用
  • config.queues 中定义任务队列监听的 queue 名称
// TaskDemo.js
const { IResqueTask } = require('@fangcha/resque')

class TaskDemo extends IResqueTask {
  async perform(params) {
    // do something
  }
}

module.exports = TaskDemo

moduleMapFile

参考本工程的 task-map.jsTaskDemo 即代表了任务类

module.exports = {
  TaskDemo: require('./TaskDemo')
}

异步任务入队

const { Resque } = require('@fangcha/resque')

Resque.setRedisBackend(config.redisConfig)

...

await Resque.enqueue('TaskQueueDemo', 'TaskDemo', params)

您可以参考 tests/resque 中的代码