Mongoose doesn't insert in MongoLab - node.js

Question

I'm trying to build my first MEAN Stack application and I'm using postman to check my insertion in my DB and I get a message that says "user created!", but after checking the DB in MongoLab. I do not get any document inserted in the collections. here's my code:
Here's my repo in case you need it: https://github.com/pevargasg/joberistyNode
app.js
var express = require('express')
var app = express()
var morgan = require('morgan');
var mongoose = require('mongoose');
var bodyParser = require('body-parser');
//My one modules
var User = require('./app/models/user');
var Company = require('./app/models/company');
//Middleware
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));
app.use(morgan('dev'));
//Connection to DB
//mongoose.Promise = global.Promise;
//Feel free to use your own mongoLab link below for testing purposes
mongoose.connect('mongodb://user:password#dsXXXXXX.mlab.com:19768/jobersity',function(err){
if(err){
console.log("Not connection to DB" + err);
throw err;
}
else{
console.log("Connected to DB");
}
});
//Routes
/*app.get('/', function (req, res) {
res.send('Hello World!')
})*/
//Creating Users
app.post('/users',function(req,res){
//res.send('test');
var user = new User();
user.username = req.body.username;
user.password = req.body.password;
user.email = req.body.email;
/*user.firstName = req.body.firstName;
user.lastName = req.body.lastName;
user.major = req.body.major;*/
//Save user
user.save();
res.send('user created!');
});
user.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
//Table for usersSchema
var UserSchema = new Schema({
username:{type: String, lowercase: true, required: true, unique: true},
password:{type: String, required: true},
email:{type: String, lowercase: true, required: true, unique: true},
/*firstName: {type: String, required: true},
lastName: {type: String, required: true},
major: {type: String, required: true},
jobsApplied:[{
title: String,
description: String,
position: String
}]*/
});
module.exports = mongoose.model('User', UserSchema);

Answer 1

Your code works successfully when I run it.
Two things I did notice:
Your package.json file includes mongojs when it doesn't seem to get used. The mongooose package will pull the mongodb dependency it need when you call npm install.
Your connection string is included in clear text in your repository. Try to get in the habit of importing any sensitive information into your app through a config file.
For example, create a config file, e.g. ./config/db.js:
module.exports = {
'uri' : 'mongodb://user:pwd#host1:port1/dbname'
}
Then import the file into your app:
var dbConfig = require('./config/db.js');
The variable can then be used be used in your code:
mongoose.connect( dbConfig.uri, function(err){ ... } )
Finally, add this file (./config/db.js) to your .gitignore.