Complete signaling server

Here is the entire code for our signaling server. This includes logging in and handling all response types. I also added a listening handler at the end to notify you when the server is ready to accept WebSocket connections:

var WebSocketServer = require(''ws'').Server,
    wss = new WebSocketServer({ port: 8888 }),
    users = {};

wss.on(''connection'', function (connection) {
  connection.on(''message'', function (message) {
    var data;

    try {
      data = JSON.parse(message);
    } catch (e) {
      console.log(""Error parsing JSON"");
      data = {};
    }

    switch (data.type) {
      case ""login"":
        console.log(""User logged in as"", data.name);
        if (users[data.name]) {
          sendTo(connection, {
            type: ""login",
            success: false
          });
        } else {
          users[data.name] = connection;
          connection.name = data.name;
          sendTo(connection, {
            type: "login",
            success...