Inspired by the bull Prefectly support in cluster mode.
- 业务方可以定义定时时间、时间结束的触发任务
- 业务方可以更新或者删除已经发布的定时任务
- 定时任务管理平台统一接收和调度任务
- 设置准确的定时时间
- 时间结束触发客户端，不能重复消费
- Initialize the redis config
- register function for callback
- publish task
var redisConfig = {
host: '127.0.0.1',
port: 6379,
db: 1,
password: 'root',
// other redis config
};
const queue = require('cron-redis')('test', redisConfig);
var moment = require('moment');
function hello (x, y){
console.log(new Date());
console.log(x + ' + '+ y +' = %s', x+y);
}
var task1 = {
method: hello.name,
params: [2, 3],
rule: moment().add(3, 's').toDate()
}
var task2 = {
method: hello.name,
params: [4, 5],
rule: '* */1 * * * *'
}
queue.register(hello)
queue.publish(task1);
queue.publish(task2);
init config
- appName {String} what your app's name?
- redisConfig {Object}
{
host: '127.0.0.1',
port: 6379,
DB: 1,
opts: {
auth_pass: 'root',
password: 'root'
}
}
register a task
-
method {Function | Object} // method for cron task callback
function hello (){ console.log('hello'); } queue.register(hello); or var methods = { hello: function(){ console.log('hello'); }, // and more } queue.register(methods);
add a task to queue
- task {Object}
- method {String} the name of method will be callback.
- params {Array}
- rule {options} cron rule . {Date} or {* */1 * * * *}
- desc {options} description for task
- uniqueID {options} keep task unique in queue
* * * * * *
┬ ┬ ┬ ┬ ┬ ┬
│ │ │ │ │ |
│ │ │ │ │ └ day of week (0 - 7) (0 or 7 is Sun)
│ │ │ │ └───── month (1 - 12)
│ │ │ └────────── day of month (1 - 31)
│ │ └─────────────── hour (0 - 23)
│ └──────────────────── minute (0 - 59)
└───────────────────────── second (0 - 59, optional)
or
new Date();
moment().add(3, 's').toDate()
the queue task in redis
- @return {Array[Object]}
[{ data: '{"method":"hello","params":[4,5],"rule":"* */1 * * * *"}',
opts: '{"delay":60000}',
progress: '0',
delay: '0',
timestamp: '1458008690942',
attempts: '1',
attemptsMade: '1',
stacktrace: '[]',
returnvalue: 'undefined',
key: 'bull:test:111' },
]
delete some hash key
- @param key {string} key of task