ionic framework - cordova scanner with angular fire firebase -


i using cordova barcode scanner

please can tell me how link data json file in firebase scanner when user scans product data come front end

i have following code : 

                scan html               <ion-view view-title="scan">             <ion-nav-buttons side="left">             <button class="button button-icon button-clear ion-navicon"              ng-click="openmenu()"></button>          </ion-nav-buttons>           <ion-nav-buttons side="right">            <button class="button button-icon button-clear ion-share"              ng-click="openrightmenu()"></button>            </ion-nav-buttons>                <ion-content class="has-subheader padding">         <a class="button button-positive button-block button-outline           icon-left  ion-qr-scanner" ng-click="scan()">scan</a>             {{error || barcodedata}}              </ion-content>             </ion-view>                 controller.js         .controller('prefctrl', function($scope, loader,             firebaseref,   $rootscope, $location) {           var authdata = $rootscope.authdata;          $scope.preferences = [];            $scope.pref = {          text: ''             };          if (!authdata) {     $location.path('/login');     return;     }      loader.showloading('fetching preferences...');          firebaseref.child("users")      .child(authdata.uid)     .on('value', function(snapshot) {          loader.hideloading();         $scope.preferences = (snapshot.val() ? snapshot.val().preferences:             []) || [];            });         $scope.savepref = function() {      $scope.preferences.push($scope.pref.text);     firebaseref         .child("users")         .child(authdata.uid)         .set({             "preferences": $scope.preferences         });      $scope.pref.text = '';    }     })     .controller('scanctrl', function($scope, loader, firebaseref,      $rootscope, $location, $cordovabarcodescanner) {       var authdata = $rootscope.authdata;     var matchedallergies = [];      if (!authdata) {     $location.path('/login');     return;     }       loader.showloading('fetching preferences...');       firebaseref     .child("users")     .child(authdata.uid)     .on('value', function(snapshot) {          loader.hideloading();         $scope.preferences = (snapshot.val() ? snapshot.val().preferences:          []) || [];     });       $scope.scan = function() {     $cordovabarcodescanner         .scan()         .then(function(barcodedata) {             // success! barcode data here             $scope.barcodedata = barcodedata;              //pick value barcodedata ,             // barcodedata.text              var barcode = barcodedata.text;              // make call firebase /products ,              // pass barcode info             // ->             var product = {                 "name" : "nacho cheese sauce - discovery",                 "barcode": "5018420420419",                 "allergies": ["peanuts, sesame seeds, treenut"],                 "ingredients": "water, cheddar cheese 15%, cream",                 "suitable consume" : "okay you!, not you!"             };              var product = {                 "name": "nairns - gluten free wholegrain crackers",                 "barcode": "0612322030070",                 "allergies": ["milk, nuts, avenin, gluten"],                 "ingredients": "wholegrain oats (86%)",                 "suitable consume": "okay you!, not you!"             };              (var = 0; < $scope.preferences.length; i++) {                 (var j = 0; j < product.allergies.length; j++) {                     if ($scope.preferences[i] === product.allergies[j]) {                         matchedallergies.push($scope.preferences[i]);                     }                 };             };              // if matchedallergies.length > 0, allergic             // matchedallergies          }, function(error) {             // error occurred             $scope.error = error;         });         }        })

please can tell me next steps

thanks

jess


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