sails-hook-hotcron

A sails hook that handles crontab jobs for you. Whenever the configuration file changes, the scheduled job changes correspondingly. No need to restart your sails app.

Get started

Install

npm install --save sails-hook-hotcron

Crontab pattern

Please refer to node-cron.

Config

By default, the configuration path is './config/locales/'(based on your sails app working directory), and the configuration file is named 'cron.json'.

└─┬ Your sails app
  ├── api
  ├── assets
  ├─┬ config
  | ├── env
  | └─┬ locales
  |   └── *cron.json*    <-----  Your should put crontab configuration file here
  └─┬ myjob
    └── somejob.js

Here is an example cron.json, all the fields are must.

[
  {
    "name": "JOB_1",
    "class": "./myjob/somejob.js",
    "constructor": "someconstructor", // currently takes only one parameter for constructor
    "args": [], // parameters passed when job.start(args)
    "crontab": "0 0 * * * *" // runs every hour
  }
]

How should I define a job

The job has to be exported as a class which has a start method. Below is an example.

class somejob {
	constructor(sails, name) {
		this.app = sails;
		this.name = name;
	}
	start() {
		this.app.log.info('Job %s start at %s', this.name, new Date());
	}
}

module.exports = somejob;