如何使用angular file upload和nodejs将文件内容发布到服务器？

Question

我想使用angular file-upload将用户选择的文件发送到服务器我看到以角度服务打印的数据但是当我看到服务器控制器正在打印空对象时，任何想法在这里实现了什么错误或者更好的方法来发送文件到内容服务器？

客户

//Controller.js

    $scope.uploadFile = function(){
                var file = $scope.myFile;
                console.log('file is ');
                console.dir(file);
                var uploadUrl = "/fileUpload";
                fileUpload.uploadFileToUrl(file, uploadUrl);
            };

// Service.js in service i see data `file` data is printed 

angular.module('App').service('fileUpload', ['$http', function ($http) {
    this.uploadFileToUrl = function(file, uploadUrl){

        /*var fd = new FormData();
        fd.append('file', file);
        console.log('service called', file);*/
        $http.post(uploadUrl,file, {
            transformRequest: angular.identity,
            headers: {'Content-Type': undefined}
        })
        .success(function(resp){
        })
        .error(function(){
        });
    }
}]);

服务器

//routes.js 

export default function(app) {
  // Insert routes below
  app.post('/fileUpload', require('./api/fileUpload'));
}

//index.js 

    var express = require('express');
    var controller = require('./fileUpload.controller');

    var router = express.Router();

    router.post('/fileUpload',controller.create);


    module.exports = router;

//controller.js

    export function create(req, res) {
    console.log('fileUpload controller server',req.body);
    }