使用Sendgrid/Nodemailer将Angular表单数据发送到Node.js

我已经按照这个例子将数据从我的Angular应用程序发送到Node.js，以发送一个webform到Sendgrid。这工作后，一些变化和感谢很多快速启动。将我的表单数据发送到Sendgrid现在正在工作!

在这个项目中，我使用Angular Fullstack，以便能够在我的Angular应用中使用Node的功能。

然而，这个例子只有输入字段和一个文本区。我希望能够添加一个文件(PDF, Docx，例如)，以便人们可以通过Sendgrid发送附件给收件人。我已经寻找了一个解决方案，但找不到一个工作的例子。也许因为我不可能达到我想达到的目标。

MY VIEW (CLIENT):

<div ng-controller="ContactFormCtrl" id="contactformbox" style="margin-top:50px;" class="mainbox" >                    
  <div class="panel panel-info" >
          <div class="panel-heading">
              <div class="panel-title">Solliciteer direct</div>
          </div>     
          <div style="padding-top:30px" class="panel-body" >
              <form id="loginform" class="form-horizontal" role="form" name="contactform">
                  <div style="margin-bottom: 25px" class="input-group">
                    <span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span>
                    <input type="email" name="to" ng-model="email.to" ng-required="true" id="email-to" class="form-control" name="username" value="" placeholder="The emailadres from the employer">       
                  </div>
                  <div style="margin-bottom: 25px" class="input-group">
                      <span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>
                      <input type="email" name="from" ng-model="email.from" ng-required="true" id="email-from" class="form-control" name="email-from" placeholder="Your e-mail address">
                  </div>
                  <div style="margin-bottom: 25px" class="input-group">
                      <span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>
                      <input type="text" name="subject" ng-model="email.subject" ng-required="true" id="email-subject" class="form-control" name="subject" placeholder="Your subject please">
                  </div>
                  <div style="margin-bottom: 25px" class="input-group">
                      <input type="file" name="file" ng-model="email.file" ng-required="true" id="email-file" class="form-control" name="file">
                  </div>
                  <div style="margin-bottom: 25px" class="input-group">
                    <textarea ng-model="email.text" name="text" placeholder="Enter Text Here.." class="form-control" rows="5" id="comment"></textarea>
                  </div>    
                  <div style="margin-top:10px" class="form-group">
                      <!-- Button -->
                      <div class="col-sm-12 controls">
                            <button id="emailSubmitBn" class="btn btn-success" type="submit" ng-click="submitEmail()">Submit</button>
                      </div>
                  </div>
              </form>     
        </div>                     
  </div>  

MY CONTROLLER (CLIENT):

angular.module('angularMyApp')
.controller('ContactFormCtrl', function ($scope, $http) {
  $scope.submitEmail = function() {
    console.log("TEST");
    //Request
    $http.post('/api/email', $scope.email) 
    .success(function(data, status) {
        console.log("Sent ok");
    })
    .error(function(data, status) {
        console.log("Error");
    })
  };
});

MY APP.JS (SERVER):

'use strict';
// Set default node environment to development
process.env.NODE_ENV = process.env.NODE_ENV || 'development';
var express = require('express');
var config = require('./config/environment');
var http = require('http');
var bodyParser = require('body-parser');
var options = {
    auth: {
        api_key: process.env.SENDGRID_APIKEY; 
    }
}
var nodemailer = require('nodemailer');
var sgTransport = require('nodemailer-sendgrid-transport');
// Setup server
var app = express();
var server = require('http').createServer(app);
require('./config/express')(app);
require('./routes')(app);
var mailer = nodemailer.createTransport(sgTransport(options));
app.post('/api/email', function(req, res) {
var mailOptions = {
    to: ['test@test.nl', req.body.to],
    from: req.body.from,
    subject: req.body.subject,
    text: req.body.text
};
mailer.sendMail(mailOptions, function(err, res) {
    if (err) { 
        console.log(err) 
    }
    console.log(res);
  });
});
// Start server
server.listen(config.port, config.ip, function () {
console.log('Express server listening on %d, in %s mode', config.port, app.get('env'));
});
// Expose app
exports = module.exports = app;

有两个主要问题:

1. 客户端:我如何在这个表单中发布从Angular到Node的附件?我必须先上传文件，还是我可以用$http.post将其发送到Node ?或者我必须使用ng-file-upload?
服务器端:我如何发送附件到Sendgrid/Nodemailer。从服务器上的app.js发送硬编码文件到Sendgrid不起作用。邮件已成功发送到Sendgrid，但未包含附件。

提前感谢!