(function() {
'use strict';

var app = angular.module('app');
app.controller('AddController', AddController);

function AddController($scope, $http) {
    $scope.mArray = [];
    $scope.clickButton = function() {
        $scope.conn = {
            'deviceToken' : '',
            'deviceOs' : '',
            'userName' : ''
        };

        if ($scope.device_token == "" || $scope.device_os == ""
                || $scope.user_name == ""
                || $scope.device_token == undefined
                || $scope.device_os == undefined
                || $scope.user_name == undefined) {
            alert("Please fill the fields");
        } else {
            $scope.conn.deviceToken = $scope.device_token;
            $scope.conn.deviceOs = $scope.device_os;
            $scope.conn.userName = $scope.user_name;
            $scope.mArray.push($scope.conn);
            $scope.addDeviceToDb($scope.conn);
            console.log("hai -" + $scope.mArray.length);
            for (var i = 0; i < $scope.mArray.length; i++) {
                console.log($scope.mArray.indexOf($scope.mArray[i]) + 1);
            }
        }
    }

    $scope.PushNotification = function(row) {
        // use $.param jQuery function to serialize data from JSON
        console.log(row);
        var data = JSON.stringify({
            "notification" : {
                "title" : "Ionic 2 FCM Starter", // Any value
                "body" : "new Message", // Any
                // value
                "sound" : "default", // If you want notification sound
                "click_action" : "FCM_PLUGIN_ACTIVITY", // Must be present
                // for Android
                "icon" : "fcm_push_icon" // White icon Android resource
            },
            "data" : {
                "param1" : "value1"
            },
            "to" : row.deviceToken,
            // "cYK3qwfbb54:APA91bGx0kMMvzyKudcjObxZO5slHg5b8PB8wysfdMf_1wlfErkM7XO7sMHj-tL_a9hDkZ-gyPXzr6wm1NWDNIpfcl5xN1vCgESB4HeUyG4pHpjfCeXcKY7th1GRJbMC84zTJAt3fXKT",
            // Topic or single device
            "priority" : "high", // If not set, notification won't be
            // delivered on completely closed iOS
            // app
            "restricted_package_name" : "" // Optional. Set for application
        // filtering
        });

        var config = {
            headers : {
                'Content-Type' : 'application/json',
                'Authorization' : 'key=AAAAgXKnYTY:APA91bFRvdDdqD2vnY3kFQjOAu1lgYVY7DgsxsA9d3p2WOvQp1txbEqnibBDRjfv5duq1SG0NdYZeUNXzg_fI8d4p--9O-po2-ISDwlg4qh3uQdCprLQV5n8thJaIWXOz3eHYSbIdB33FC7x_EjaACBQLb44HflgBQ'
            }
        }

        $http.post('https://fcm.googleapis.com/fcm/send', data, config)
                .success(function(data, status, headers, config) {
                    $scope.PostDataResponse = data;
                }).error(
                        function(data, status, header, config) {
                            $scope.ResponseDetails = "Data: " + data
                                    + "<hr />status: " + status
                                    + "<hr />headers: " + header
                                    + "<hr />config: " + config;
                        });
        alert("Message Successfully send");
    }

    $scope.addDeviceToDb = function(data) {

        $http(
                {
                    method : 'POST',
                    url : "http://10.10.14.54:8080/FcmBackend_ws/rest/add_device",
                    headers : {
                        'Content-Type' : 'application/json'
                    },
                    transformRequest : function(obj) {
                        var str = [];
                        for ( var p in obj)
                            str.push(encodeURIComponent(p) + "="
                                    + encodeURIComponent(obj[p]));
                        return str.join("&");
                    },
                    data : {
                        token : data.deviceToken,
                        device_os : data.deviceOs,
                        device_version : data.userName
                    }
                }).success(
                function(data, status, headers, config) {
                    console.log("Successfull data : " + data.toString
                            + " status :" + status);
                }).error(function(data, status, header, config) {
            console.log("Failed data : " + data + " status :" + status);

        });
    }
    var getDeviceFromDb = function(data,$http) {

        var response = $http({
            method : 'GET',
            url : "http://localhost:8080/FcmBackend_ws/rest/devices",
            withCredentials : true,
            headers : {
                'Content-Type' : 'application/json; charset=utf-8'
            }
        }).success(
                function(data, status, headers, config) {
                    console.log("Successfull data1 : " + data.toString
                            + " status :" + status);
                }).error(function(data, status, header, config) {
            console.log("Failed data1 : " + data + " status :" + status);

        });
    }
    getDeviceFromDb();
}

  })();

Error: $http is not a function
AddController/getDeviceFromDb@http://localhost/fcmDashBoard     /add/add.controller.js:113:19
 AddController@http://localhost/fcmDashBoard/add/add.controller.js:129:3
 invoke@https://code.angularjs.org/1.2.20/angular.js:3918:14
 instantiate@https://code.angularjs.org/1.2.20/angular.js:3929:23
$ControllerProvider/this.$get</<@https://code.angularjs.org/1.2.20    /angular.js:7216:18
 nodeLinkFn/<@https://code.angularjs.org/1.2.20/angular.js:6607:34
 forEach@https://code.angularjs.org/1.2.20/angular.js:332:11
nodeLinkFn@https://code.angularjs.org/1.2.20/angular.js:6594:11
compositeLinkFn@https://code.angularjs.org/1.2.20/angular.js:6039:13
publicLinkFn@https://code.angularjs.org/1.2.20/angular.js:5934:30
ngViewFillContentFactory/<.link@https://code.angularjs.org/1.2.20/angular-    route.js:921:7
nodeLinkFn@https://code.angularjs.org/1.2.20/angular.js:6648:13
compositeLinkFn@https://code.angularjs.org/1.2.20/angular.js:6039:13
publicLinkFn@https://code.angularjs.org/1.2.20/angular.js:5934:30
createBoundTranscludeFn/boundTranscludeFn@https://code.angularjs.org /1.2.20/angular.js:6059:21
controllersBoundTransclude@https://code.angularjs.org/1.2.20/angular.js:6669:18
update@https://code.angularjs.org/1.2.20/angular-route.js:871:25
$RootScopeProvider/this.$get</Scope.prototype.$broadcast@https://code.angularjs.org/1.2.20/angular.js:12887:15
updateRoute/<@https://code.angularjs.org/1.2.20/angular-route.js:552:15
qFactory/defer/deferred.promise.then/wrappedCallback@https: //code.angularjs.org/1.2.20/angular.js:11498:31
qFactory/defer/deferred.promise.then/wrappedCallback@https://code.angularjs.org/1.2.20/angular.js:11498:31
qFactory/ref/<.then/<@https://code.angularjs.org/1.2.20/angular.js:11584:26
$RootScopeProvider/this.$get</Scope.prototype.$eval@https://code.angularjs.org/1.2.20/angular.js:12608:16
$RootScopeProvider/this.$get</Scope.prototype.$digest@https://code.angularjs.org/1.2.20/angular.js:12420:15
$RootScopeProvider/this.$get</Scope.prototype.$apply@https://code.angularjs.org/1.2.20/angular.js:12712:13
done@https://code.angularjs.org/1.2.20/angular.js:8315:34
completeRequest@https://code.angularjs.org/1.2.20/angular.js:8527:7
createHttpBackend/</xhr.onreadystatechange@https://code.angularjs.org/1.2.20/angular.js:8466:1
 <div class="ng-scope" ng-view="">`