npm install health-monitor-service --save

npm install health-monitor-service -g

const Service = require('health-monitor-service').service;
let cfg = {host:"localhost",port:22};
let promise = Service.ssh(cfg);
promise.then((data)=>{
    //dosomething right
},(error)=>{
    //dosomething error
});

const server = require('health-monitor-service').server;
server.listen("your_port", "your_host", 1, (req, res) => {
    //dosome thing
});