Javascript 如何将实时脚本连接到gamelift本地sdk

我正在尝试设置gamelift，为了测试集成，我启动了gamelift local，它实例化了amazon游戏服务。下面是日志

  17:50:53,460  INFO || - [SocketIOServer] main - Session store / pubsub 
  factory used: MemoryStoreFactory (local session store only)
  17:50:54,460  WARN || - [ServerBootstrap] main - Unknown channel option 
  'SO_LINGER' for channel '[id: 0xc9982980]'
  17:50:54,467  INFO || - [SocketIOServer] nioEventLoopGroup-2-1 - SocketIO 
  server started at port: 5757
  17:50:54,467  INFO || - [SDKConnection] main - GameLift SDK server 
  (communicates with your game server) has started on http://localhost:5757
  17:50:54,501  INFO || - [StandAloneServer] main - GameLift Client server 
  (listens for GameLift client APIs) has started on http://localhost:9080

现在我不知道如何在端口5757与我的实时脚本建立连接

我试过使用

  var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
  var request = new XMLHttpRequest();


  request.open('GET', 'http://localhost:5757', true)
  request.onload = function () {
    Init();
    console.log("server initialised")
  }

它甚至不会在本地ping gamelift

请帮助如何建立连接