AngularJs and a socket server

Sure

There is kinda well known and popular library from @btford. You just need to include the library into your project and make a factory that returns you helpers like addListener, removeListener, removeAllListeners, emit.. for your project.

angular.module('myApp', [
  'btford.socket-io',
  'myApp.MyCtrl'
]).
factory('mySocket', function (socketFactory) {
  return socketFactory();
});

Sample

There is also a nice webtutorial on HTML5 Rocks where is built a simple app with Node.js (Express) and Angular.js and they communicate between each other via Socket.io in both directions. Sources are available on Github.

Basics (sample from tutsplus)

Basically, just make a simple Node.js listener with callback:

var io = require('socket.io')(8080);

io.sockets.on('connection', function (socket) {
    socket.on('echo', function (data) {
        socket.emit('echo', data);
    });

    socket.on('echo-ack', function (data, callback) {
        callback(data);
    });
});

.. include the scripts to your frontend app ..

<script src="'angular.min.js"></script>
<script src="/socket.io/socket.io.js"></script>
<script src="angular-socket.js"></script>
<div ng-controller="Ctrl">
    <input ng-model="dataToSend">
    <button ng-click="emitBasic()">Send</button>
    <button ng-click="emitACK()">Send (ACK)</button>
    <div>Server Response: {{ serverResponse }}</div>
    <div>Server Response (ACK): {{ serverResponseACK }}</div>
</div>

.. include the module ..

var module = angular.module('socket.io', []);



app.controller('Ctrl', function Ctrl($scope, $socket) {
   $socket.on('echo', function (data) {
      $scope.serverResponse = data;
   });
   // ………
});