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Database (MongoDB with Mongoose)

Make sure to have mongodb running first! mongod --dbpath data/

package.json

"dependencies": {
"mongoose": "^4.5.5",
}

server.js (ECMA 6)

import mongoose from 'mongoose';
mongoose.connect('mongodb://localhost:27017/stackoverflow-example');
const db = mongoose.connection;
db.on('error', console.error.bind(console, 'DB connection error!'));

server.js (ECMA 5.1)

var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost:27017/stackoverflow-example');
var db = mongoose.connection;
db.on('error', console.error.bind(console, 'DB connection error!'));

Define your model(s):

app/models/user.js (ECMA 6)

import mongoose from 'mongoose';
const userSchema = new mongoose.Schema({
name: String,
password: String
});
const User = mongoose.model('User', userSchema);
export default User;

app/model/user.js (ECMA 5.1)

var mongoose = require('mongoose');
var userSchema = new mongoose.Schema({
name: String,
password: String
});
var User = mongoose.model('User', userSchema);
module.exports = User

ECMA 6:

const user = new User({
name: 'Stack',
password: 'Overflow',
}) ;
user.save((err) => {
if (err) throw err;
console.log('User saved!');
});

ECMA5.1:

var user = new User({
name: 'Stack',
password: 'Overflow',
}) ;
user.save(function (err) {
if (err) throw err;
console.log('User saved!');
});

ECMA6:

User.findOne({
name: 'stack'
}, (err, user) => {
if (err) throw err;
if (!user) {
console.log('No user was found');
} else {
console.log('User was found');
}
});

ECMA5.1:

User.findOne({
name: 'stack'
}, function (err, user) {
if (err) throw err;
if (!user) {
console.log('No user was found');
} else {
console.log('User was found');
}
});