如何将实时数据从Node.js服务器推送到AngularJS?

我已成功打开服务器中与外部API的Websocket连接，以获取交易所报价数据，但不确定如何将数据连续推送到客户端/AngularJS.

I have successfully opened a websocket connection in server to an external API to get exchange ticker data but not sure how to continuously push the data to client / AngularJS.

这是路由器代码:

router.get('/live-ticker', function(req, res) {


  var autobahn = require('autobahn');
  var wsuri = "wss://api.poloniex.com";
  var connection = new autobahn.Connection({
    url: wsuri,
    realm: "realm1"
  });

  connection.onopen = function(session) {

    function tickerEvent(args, kwargs) {

      res.json(args);
      console.log(args);

    }


    session.subscribe('ticker', tickerEvent);

  }

  connection.onclose = function() {
    console.log("Websocket connection closed");
  }

  connection.open();

});

我想做的是让 tickerEvent 中的数据实时更新前端的控制器:

What I'm attemping to do is to have the data from tickerEvent live update the controller in the front end:

app.controller('liveTickerController', function($scope, $http) {

  $scope.ticker = [];

  var request = $http.get('/live-ticker');

  request.success(function(ticker) {
    console.log(ticker); //only logging data once

    $scope.liveTicker = ticker;
  });

  request.error(function(err) {
    console.log('Error: ' + err);
  });

});

如何将实时更新推送到客户端?

How would get live updates pushed to client?

谢谢