API posts x-www-form-urlencoded data but fails on json - node.js

Question

I have a basic Mongo API.
During testing, I can easily post data with postman when it is x-www-form-urlencoded but when I use raw JSON, it is just blank.
I stored the body to see what was the difference and noticed that while using the x-www-form-urlencoded format there was data but when using JSON, my object was blank and doesn't post anything.
The data schema is as follows:
var mongoose = require('mongoose');
// Setup schema
var testSchema = mongoose.Schema({
fieldone: {
type: String,
required: true
},
fieldtwo: {
type: String,
required: true
},
fieldthree: {
type: String,
required: true
},
fieldfour: String,
fieldfive: String,
fieldsix: String
});
// Export model
var test= module.exports = mongoose.model('test', testSchema);
module.exports.get = function(callback, limit) {
test.find(callback).limit(limit);
}
The controller is as below:
// Controller.js
// Import model
Test= require('./Model');
// insert new test
// Handle create actions
exports.new = function(req, res) {
const {
fieldone,
fieldtwo,
fieldthree,
fieldfour,
fieldfive,
fieldsix
} = req.body
var test= new Test(req.body);
// console log for testing if the data shows
console.log(test)
// save and check for errors
test.save(function(err) {
// if (err)
// res.json(err);
res.json({
message: 'New test created!',
data: test
});
});
};
Below is my api-routes
// api-routes.js
// Initialize express router
const router = require('express').Router();
// Set default API response
router.get('/', function(req, res) {
res.json({
status: 'alls good',
message: 'alls good',
});
});
// Import controller
const testController = require('./Controller');
// routes
router.route('/test')
.get(testController.index)
.post(testController.new);
// Export API routes
module.exports = router;
Below is my index.js:
const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const cors = require('cors')
const app = express();
// Import routes
var apiRoutes = require("./api-routes");
var corsOptions = {
origin: '*',
credentials: true
};
app.use(cors(corsOptions));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: true
}));
app.use('/api', apiRoutes);
// mongo con
mongoose.connect('mongodb://localhost/mongodojo', { useNewUrlParser: true
});
var db = mongoose.connection;
// error check
if (!db)
console.log("Error while connecting")
else
console.log("connection successful")
// Setup server port
const port = process.env.PORT || 3000;
app.get('/', (req, res) => res.send('Welcome'));
Is there anything in my code that could be causing this?