const poloniex=require('node-api-bitrue');

  const publicAPI=new poloniex.publicApi();

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

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

  const privateAPI=new poloniex.privateApi(auth);

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

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

  const publicAPI=new poloniex.sockets.publicApi();
  publicAPI.setHandler('book.snapshot', (method,data,symbol) => { snapshotOrderbook(symbol,method,data,handler); });
  publicAPI.setHandler('book.update', (method,data,symbol) => { updateOrderbook(symbol,method,data,handler); });

  publicAPI.socket._ws.on('initialized', async () => {
    // do your own initialization, e.g. subscribe to orderbook
  });

  function snapshotOrderbook(symbol,method,data,handler) {
    // do something
  };

  function updateOrderbook(symbol,method,data,handler) {
    // do something
  };

  const privateAPI=new poloniex.sockets.privateApi(auth);

  privateAPI.socket._ws.on('authenticated', async () => {
    // do your own initialization, e.g. subscribe to updates
  });

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

  function updateOrder(symbol,method,data) {
    // do something
  };