const cryptocom=require('node-api-cryptocom');

  const publicAPI=new cryptocom.publicApi();

  const cryptocom=require('node-api-cryptocom');

  const auth = {
    apikey: 'MY_API_KEY',
    secret: 'MY_API_SECRET'
  };

  const privateAPI=new cryptocom.privateApi(auth);

  const cryptocom=require('node-api-cryptocom');

  const auth = {
    apikey: 'MY_API_KEY',
    secret: 'MY_API_SECRET'
  };

  const marketAPI=new cryptocom.sockets.marketApi();
  marketAPI.socket._ws.on('initialized', async () => {
    // do your own initialization
  });

  const privateAPI=new cryptocom.sockets.privateApi(auth);
  privateAPI.setHandler('user.order', (method,data,symbol,option) => { updateOrders(method,data,user,api,handler); });

  privateAPI.socket._ws.on('authenticated', async () => {
    const res=await privateAPI.subscribeOrders();
  });

  privateAPI.socket._ws.on('closed', async () => {
    // do something, like clean-up and reconnect
  });

  function updateOrders(method,orders,user,api,handler) {
    // do something
  };