Node Js get post data as json key - angularjs

Question

NodeJS File server.js
var express = require('express');
var app = express();
var bodyParser = require('body-parser');
var morgan = require('morgan');
var mongoose = require('mongoose');
var moment = require('moment');
var http = require('http');
var jwt = require('jsonwebtoken');
var config = require('./config');
var User = require('./app/models/user');
var port = process.env.PORT || 8080;
mongoose.connect(config.database);
app.set('superSecret', config.secret);
app.use(bodyParser.urlencoded());
app.use(bodyParser.json());
app.post('/onboardAuthentication', function(req, res) {
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Methods', 'POST, GET, OPTIONS, PUT, DELETE');
res.setHeader('contentType', 'application/x-www-form-urlencoded;charset=utf-8;');
res.json(req.body);
});
var server = http.createServer(app);
server.listen(port);
console.log('Magic happens at http://localhost:' + port);
Angular API Hit Code where Front side API hit
var serviceRoot='http://localhost:8080/onboardAuthentication';
var deferred=$q.defer();
var req = {
method: 'POST',
url: serviceRoot,
data: { key: 'value' },
contentType: 'application/x-www-form-urlencoded;charset=utf-8;'
};
$http(req).then(goodResponse,badResponse);
return deferred.promise;
function goodResponse(response)
{
console.log("Good response");
console.log(response);
}
function badResponse(response)
{
console.log("Bad response");
console.log(response.data);
}
It print result in this formate, it make post data as key and value is blank, but i want to access post data in json format using body-parsar node js.
{"key":"value"}: ""

Answer 1

If you want to send simple text/ ASCII data, then x-www-form-urlencoded will work,
by default angular will send application/json to the server.
var req = {
method: 'POST',
url: serviceRoot,
data: { key: 'value' },
// comment this line, you don't need it
//contentType: 'application/x-www-form-urlencoded;charset=utf-8;'
};