Improve this AngularJS factory to use with socket.io

Question

I want to use socket.io in AngularJS. I found the following factory:

app.factory(\'socket\', function ($rootScope) {
    var socket = io.connect();
    retur         


        

Answer 1

I just solved a similar problem before I read this. I did it all in the Service.

.controller('AlertCtrl', ["$scope", "$rootScope", "Socket", function($scope, $rootScope, Socket) {
    $scope.Socket = Socket;
}])

// this is where the alerts are received and passed to the controller then to the view
.factory('Socket', ["$rootScope", function($rootScope) {
    var Socket = {
        alerts: [],
        url: location.protocol+'//'+location.hostname+(location.port ? ':'+location.port: ''),
        // io is coming from socket.io.js which is coming from Node.js
        socket: io.connect(this.url)
    };
    // set up the listener once
    // having this in the controller was creating a
    // new listener every time the contoller ran/view loaded
    // has to run after Socket is created since it refers to itself
    (function() {
        Socket.socket.on('get msg', function(data) {
            if (data.alert) {
                Socket.alerts.push(data.alert);
                $rootScope.$digest();
            }
        });
    }());
    return Socket;
}])