AngularJS socket.io 事件转发与延迟承诺

Question

我正在使用angular-socket-io，但需要一种方法在启动 socket.io 接口之前先在应用程序中进行身份验证。 I followed this method.

但是我需要在工厂as shown here这样使用事件转发：

socket.forward("event");

如何在我的工厂中添加转发？

.factory('socket', function($rootScope, $timeout, socketFactory, $q, $log) {
  // create a promise instance
  var socket = $q.defer();
  // listen for the authenticated event emitted on the rootScope of
  // the Angular app. Once the event is fired, create the socket and resolve
  // the promise.
  $rootScope.$on('authenticated', function() {

    // resolve in another digest cycle
    $timeout(function() {
      var token = window.localStorage["socket_token"];
      var token_query = 'token=' + token;
      var newSocket = (function() {
        return socketFactory({
          ioSocket: io.connect('http://example.com:3000', {
            query: token_query
          })
        });
      })();
      socket.resolve(newSocket);
    });
  });
  return socket.promise
});

Answer 1

您可以在使用创建的套接字解​​决承诺之前简单地将调用添加到forward()：

newSocket = (function() { /* ... */ })()
newSocket.forward("event");
socket.resolve(newSocket);