$ npm install --save nodejs-handle-net-client

var Handle = require("nodejs-handle-net-client").Handle

import  Handle  from 'nodejs-handle-net-client';

    var handleClient = new Handle('https:localhost:8000', '300:0.NA/prefix', 'privetkey.pem',true);

    // list all handles 
    handleClient.listHandles().then(d => console.log(d)).catch(e=>console.log(e));;
    // delete handle 
    handleClient.deleteHandle('1234').then(d => console.log(d)).catch(e=>console.log(e));
    // add new handle with value of URL
    handleClient.newHandle('URL').then((d) => console.log(d)).catch(e=>console.log(e));