AngularJS service file upload

A simple service to upload a file.

HTML

<div ng-controller = "myCtrl">
    <input type="file" file-model="myFile"/>
    <button ng-click="uploadFile()" multi>upload me</button>
</div>

JavaScript

var myApp = angular.module('myApp', []);

myApp.directive('fileModel', ['$parse', function ($parse) {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {
            var model = $parse(attrs.fileModel);
            var modelSetter = model.assign;
            
            element.bind('change', function(){
                scope.$apply(function(){
                    modelSetter(scope, element[0].files[0]);
                });
            });
        }
    };
}]);

myApp.service('fileUpload', ['$http', function ($http) {
    this.uploadFileToUrl = function(file, uploadUrl){
        var fd = new FormData();
        fd.append('file', file);
        
        $http.post(
            uploadUrl,
            {
            	file: fd,
            	data: {
                    options: {
                        path: './public/documents',
                        limitSize: 2000000
                    },
                    supportedFileExt: ['txt', 'doc'],
                    multiFiles: false
                }
            },
            {
            	transformRequest: angular.identity,
            	headers: { 'Content-Type': 'multipart/form-data;boundary=meubondary' }
            }
        )
        .success(function(){
        })
        .error(function(){
        });
    }
}]);

myApp.controller('myCtrl', ['$scope', 'fileUpload', function($scope, fileUpload){
    
    $scope.uploadFile = function(){
        var file = $scope.myFile;
        console.log('file is ' );
        console.dir(file);
        var uploadUrl = "http://localhost:3000/test";
        fileUpload.uploadFileToUrl(file, uploadUrl);
    };
    
}]);