HTTP Post data object not complete when received by backend - angularjs

Question

I am trying to send an email using a contact form in AngularJS, the server side is programmed in NodeJS, to send the email by smtp I am using the nodemailer library, the AngularJS side the form is sending the data, but the server side not received this data, only show me an object named IncomingMessage with many items, but I don't see my email data.
Angular side
angular.module('contactApp', [])
.factory('postEmailForm',['$http',function($http){
return {
postEmail: function(emailData,callback){
console.log(emailData);
$http.post("/contact-form", emailData).success(callback);
}
}
}])
.controller('ContactController', function ($scope,postEmailForm) {
$scope.sendMail = function () {
console.log("Entro!");
var req = {
headers: {
'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content- Type, Accept'
},
data:
{
contactName : this.contactName,
contactEmail : this.contactEmail,
contactMsg : this.contactMsg
}
}
postEmailForm.postEmail(req, function (res) {
console.log(req);
if (res.type == false) {
//do something
}else{
console.log("OK");
}
})
};
});
Server side
var express=require('express');
var nodemailer = require("nodemailer");
var app = express();
var serveStatic = require('serve-static');
var http = require('http');
app.use(serveStatic("."));
app.get('/',function(req,res){
res.sendfile('index.html');
});
var smtpTransport = nodemailer.createTransport("SMTP",{
service: "Gmail",
auth: {
user: "sending email",
pass: "sending pass"
}
});
app.post('/contact-form',function(req,res){
//Your NodeMailer logic comes here
console.log(req.data);
var mailOptions={
from : req.data.contactEmail,
to: recipient email
subject : "Contact",
text : req.data.contactMsg
}
console.log(mailOptions);
smtpTransport.sendMail(mailOptions, function(error, response){
if(error){
console.log('Server error ' + error);
res.end("error");
}else{
console.log("Message sent: " + response.message);
res.end("sent");
}
});

Answer 1

I forgot add body-parser on the server side, to parse the data
var bodyParser = require('body-parser');
app.use(bodyParser.json());