How to save images from server into device internal memory?

I read all the Cordova file related documents but didn’t find a proper way to download the files from an app into device internal memory. Can anyone help with this, please ?

$scope.download = function download(name, contentType, fileLInk) {
ionic.Platform.ready(function() {
  var url = apiServiceBaseUri + fileLInk;
  var targetPath = cordova.file.dataDirectory + 'myapp/' + name;
  var trustHosts = false;
  var options = {
    headers: {
      'Authorization': tokenType + ' ' + accessToken
    }
  };

  $cordovaFileTransfer.download(url, targetPath, options, trustHosts)
    .then(function(result) {
      var alertPopup = $ionicPopup.alert({
        title: 'File has been downloaded',
      });
      $ionicListDelegate.closeOptionButtons();
    }, function(error) {
      $ionicListDelegate.closeOptionButtons();
      if (error.http_status == 401) {
        $ionicPopup.alert({
          title: 'Oops, Session is expired!',
          template: 'Looks like your session is expired or you logged in from someother device.'
        });
        $ionicHistory.clearCache().then(function() {
          $state.go('start.login');
        });
      }
      var alertPopup = $ionicPopup.alert({
        title: 'Sorry, something went wrong during the request!',
        template: error.data.errors[0].message
      });
    });
});
};

I’m getting success message but don’t know where it’s saving the file.

The solution is in this StackOverflow question: http://stackoverflow.com/questions/39873248/how-to-save-images-from-server-into-device-internal-memory-in-ionic-app/39873499