javascript - create global socket object in angular js? -


i new angular js , have requirement need create single instance of socket object can accessed controller.

for created factory private socket variable connects socket-io server automatically when application started. created public method return socket object.

i want know whether approach fine or can have better solution this.also imply create singleton object or not? below factory code wrote purpose. socketioservice.js

    (function() {     'use strict';      angular         .module('app.core')         /* @nginject */         .factory('ncsocketfactory', function(socketfactory, call_url, $rootscope) {             var socket  = io.connect(call_url, {                             transports: ["websocket"]                         });               socket.on('connect', function () {                   console.log('socket io connected...');                   $rootscope.$broadcast('socket:connected');             });              socket.on('incomingcall', function (data,evt) {                   console.log('incomingcall data..'+data);                 $rootscope.incomingcalldata = data;                 $rootscope.$broadcast('socket:incomingvideocall');             });                socket.on('disconnect', function () {                   console.log('socket io disconnected...');                    $rootscope.$broadcast('socket:disconnected');             });              return {                 getsocketobject: function(){                     return socket;                 },                 on: function (eventname, callback) {                     socket.on(eventname, function () {                                     });                 },                 emit: function (eventname, data, callback) {                     socket.emit(eventname, data, function () {                   });                 },                 reconnect: function () {                     socket  = io.connect(call_url, {                         transports: ["websocket"]                     });                 },                 disconnect: function () {                     console.log('in socket disconnect:'+socket.connected);                     if(socket.connected){                         socket.disconnect();                          console.log('ncsocketfactory disconnected');                     }                 }               };         }); })();


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